What are the different types of flexible Shaft Couplings?

There are several types of flexible Shaft Couplings, including beam, bellows, jaw, Oldham, disc, diaphragm, and gear couplings. Each type has unique features and benefits that make them suitable for different applications and environments. Flexible Shaft Couplings are used to connect two shafts and allow for misalignment while transmitting torque between them.

What factors should be considered when selecting a flexible coupling?

The factor for selecting a flexible coupling, there are several factors that should be considered, including the required torque capacity, misalignment capability, operating speed, and environmental factors such as temperature and humidity. Other considerations include the required degree of axial and radial stiffness, the space available for the coupling, and the type of equipment being connected. It is also important to consider the potential for wear and tear, maintenance requirements, and the cost of the coupling.

How is a flexible coupling installed and maintained?

Shaft Couplings are installed by aligning the shafts and tightening the screws or bolts. Maintenance involves regular inspections for signs of wear, damage, or misalignment. Lubrication is important to prevent excessive wear and reduce friction. Cleaning and tightening of bolts and screws are also necessary to ensure proper operation.

What is the difference between a flexible coupling and a rigid coupling?

A flexible coupling allows for some misalignment between two connected shafts while transmitting torque, while a rigid coupling does not allow for any misalignment. Flexible couplings are designed to absorb shock and vibration, which can help reduce wear and tear on connected equipment. Rigid couplings, on the other hand, are used in applications where precise alignment between shafts is critical, such as in high-speed rotating equipment or precision machinery.

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Flexible Shaft Couplings（Body Material：Aluminum Page3）

Couplings serve a crucial role in transmission system by connecting two shafts and facilitating the transmission of torque between them. These devices are essential in various applications where precise and reliable power transmission is required. When selecting couplings, it is crucial to consider factors such as Shaft Bore Diameter, Overall Length , Materials (e.g., Stainless Steel, Steel, Aluminum, Plastic and etc.), Features(e.g., Clean Environment, Heat Resistant , High Torque and so on). These considerations are vital for ensuring the production of high-quality products. We highly recommend reputable brands like MISUMI, ADVANCED, COUP-LINE, as well as cost-effective options from MISUMI ECONOMY.
Take advantage of the convenience of FREE SHIPPING and NO MINIMUM ORDER on couplings. If you have any doubts or require assistance in choosing the right product, our experts are readily available to provide.

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Type	Slit Disc Oldham Jaw Bellows Others Vibration Damping Rubber Type
Brand	(25) (2) ADVANCED (5) ISEL (1) KAYSEVEN (2) KOYO ELECTRONIC (1) MIGHTY (3) MIKI PULLEY (8) MITSUBOSHI BELTING (0) NABEYA BI-TECH (20) NIHON MINIATURE (3) ORIENTAL MOTOR (0) SAKAI MANUFACTURING (4) SUNGIL (29)
CAD	2D 3D
Days to Ship	All Same day 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less Others

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MOS Flexible Coupling - Oldham Type

NABEYA BI-TECH

Small eccentric reaction force, large permissible misalignment large, with vibration absorption.

CAD ：: 2D / 3D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Oldham	1 ～ 14	1 ～ 14	8 ～ 32	12.7 ～ 33.3	Standard / Stepping Motor	0.05~1.00 ～ 1.01~3.00	-	Angular Misalignment / Eccentricity	10001~78000	Aluminum	0.08 ～ 2.8	2	0.5 ～ 2	Coupling Main Body	0.41~1.0 ～ 1.1~3.0	19000 ～ 78000	Polyacetal	-	-	-	-	-	-

From: ₹ 2,449.51
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Super zero Oldham coupling series MMZ type aluminum alloy products

NIHON MINIATURE

Use the set screw to fix the shaft. While compact, can handle large shaft diameters.

[Features]
· Super zero Oldham coupling achieves zero backlash, with improved machining accuracy
· Stronger and more compact design, that can now be used with high precision equipment impossible until now.
· Stainless steel series added, becoming 4 series, with further improvements.
· Materials used are, engineering plastic for spacer, and stainless steel SUS303 for hubs, aluminum series uses aluminum alloy (alumite surface treatment).
· Easy to handle coupling, with low moment of inertia, large swing rigidity, good electrical insulation, and maintenance-free, easy assembly.
· Two types of super zero Oldham coupling, with set screw or collet shaft fixing methods both available, that can be freely combined.
· Stainless steel has no. 4 model number, and the aluminum series has no. 10 model number.
· Stocking stainless steel series from ø4 to ø28, aluminum series from ø3 to ø40 in millimeter and inch system of inner diameter finish.

CAD ：: 2D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Oldham	6	8	25	26	Standard	5.01~10.00	High Torque ～ Small	Angular Misalignment / Eccentricity	10001~78000	Aluminum	6.865	1	2	Coupling Main Body	1.1~3.0	25000	Others	-	-	-	-	-	-

From: ₹ 3,191.76
Days to Ship: 7 Day(s) or more

7 Day(s) or more

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Super zero Oldham coupling series MCZ type aluminum alloy products

NIHON MINIATURE

Type that fixes the shaft with tightening of a set screw and clamp. Larger shaft hole diameters can be selected.

[Features]
· Super zero Oldham coupling achieves zero backlash, with improved machining accuracy
· Stronger and more compact design, that can now be used with high precision equipment impossible until now.
· Stainless steel series added, becoming 4 series, with further improvements.
· Materials used are, engineering plastic for spacer, and stainless steel SUS303 for hubs, aluminum series uses aluminum alloy (alumite surface treatment).
· Easy to handle coupling, with low moment of inertia, large swing rigidity, good electrical insulation, and maintenance-free, easy assembly.
· Two types of super zero Oldham coupling, with set screw or collet shaft fixing methods both available, that can be freely combined.
· Stainless steel has no. 4 model number, and the aluminum series has no. 10 model number.
· Stocking stainless steel series from ø4 to ø28, aluminum series from ø3 to ø40 in millimeter and inch system of inner diameter finish.

CAD ：: 2D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Oldham	3 ～ 25	3 ～ 35	18 ～ 70	25 ～ 53	Standard	1.01~3.00 ～ 100 < 500	High Torque ～ Small	Angular Misalignment / Eccentricity	4001~10000 ～ 10001~78000	Aluminum	2.452 ～ 176.52	1	1.5 ～ 2.5	Coupling Main Body	1.1~3.0	10000 ～ 25000	Others	-	-	-	-	-	-

From: ₹ 3,324.02
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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K-7 Coupling SD Series

KAYSEVEN

Compact, high-performance eccentricity absorbing, non-reactive force product with no backlash. Widely used in robots, medical equipment, packaging machinery, and machine tools etc.

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Oldham	3 ～ 9525	3 ～ 10	17.5 ～ 25.5	24.9 ～ 32	Standard	1.01~3.00 ～ 3.01~5.00	Low Moment of Inertia ～ Vibration Insulation	Not Provided	4001~10000 ～ 10001~78000	Aluminum	1.76 ～ 3.67	-	-	Coupling Main Body	-	10000 ～ 15000	Polyacetal	-	-	-	-	-	-

From: ₹ 2,374.93
Days to Ship: 5 Day(s) or more

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Disc-Shaped Coupling - Clamping Type (Single Disc)

SUNGIL

Structure that adjusts axis misalignment by deflection of a thin metal disc. Large torque transmission, even at high-speeds. Simple structure that is easy to remove. Clamping type product. SUNGIL The company is a Korean manufacturer established in 1991. Korean coupling market share is 70%, with over 3,000 customers. No1 maker. Rich selection.

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Disc	10 ～ 45	10 ～ 45	56 ～ 88	44.2 ～ 69.5	Servo Motor / Stepping Motor	20.01~50.00 ～ 100 < 500	Heat Resistant ～ No Backlash	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	30 ～ 200	0.7	0 ～ 0.02	Coupling Main Body	-	5500 ～ 8200	Aluminum Bronze	Stainless Steel	-	-	-	-	-

From: ₹ 6,175.13
Days to Ship: 10 Day(s) or more

10 Day(s) or more

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Disc-Shaped Coupling - Set Screw Type (Double Disc) - [SDAA]

SUNGIL

Brand-name products provided by MISUMI-VONA are offered based on customers' needs that selected from products of Asian manufacturers carefully. Please select an item according to the user's various usage scenes. A Korean manufacturer established in 1991. Korean coupling market share is 70%, with over 3,000 customers. No1 maker. Rich selection, and short lead-times.

CAD ：: 3D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Disc	6 ～ 20	6 ～ 20	42.5 ～ 54	50 ～ 71	Servo Motor / Stepping Motor	5.01~10.00 ～ 20.01~50.00	Heat Resistant ～ Small	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	6 ～ 22	3	0.4 ～ 0.5	Coupling Main Body	0.21~0.40 ～ 0.41~1.0	7500 ～ 8000	Aluminum Bronze	Stainless Steel	-	-	-	-	-

From: ₹ 3,546.27
Days to Ship: 10 Day(s) or more

10 Day(s) or more

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Disc-Shaped Coupling - Surface Pressure Type (Double Disc)

SUNGIL

CAD ：: 2D / 3D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Disc	10 ～ 45	10 ～ 45	56 ～ 88	71 ～ 110	Servo Motor / Stepping Motor	20.01~50.00 ～ 100 < 500	Heat Resistant ～ No Backlash	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	30 ～ 120	1	0.3	Coupling Main Body	0.21~0.40	6000 ～ 7700	Aluminum Bronze	Stainless Steel	-	-	-	-	-

From: ₹ 10,148.76
Days to Ship: 10 Day(s) or more

10 Day(s) or more

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Oldham Couplings - Super Short Clamping

MISUMI

This coupling has a larger allowable torque and a shorter overall length than conventional products.

CAD ：: 2D / 3D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Oldham	3 ～ 10	3 ～ 10	12 ～ 25	13.5 ～ 22.5	Standard	0.05~1.00 ～ 1.01~3.00	Low Moment of Inertia ～ Small	Angular Misalignment / Eccentricity	4001~10000 ～ 10001~78000	Aluminum	0.3 ～ 1.6	1.5	0.3 ～ 1.2	Coupling Main Body	0.21~0.40 ～ 1.1~3.0	5000 ～ 12000	Polyacetal	-	-	-	-	-	-

Days to Ship: 8 Day(s) or more

8 Day(s) or more

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Precision Axial Fitting Plate-Spring Type, TAD-C Series

SAKAI MANUFACTURING

Lightweight super Duralumin, high rigidity type.

[Features]
· Lightweight super Duralumin, improving torque transmission with high rigidity body, and original leaf spring for both performance up and cost down.

CAD ：: 2D / 3D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Disc	10 ～ 25	12 ～ 32	48 ～ 65	56.5 ～ 72	Standard / Servo Motor / Stepping Motor	20.01~50.00 ～ 50.01~100.00	High Accuracy ～ Low Moment of Inertia	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	35 ～ 80	1	0.26 ～ 0.31	Coupling Main Body	0.21~0.40	10000	-	Stainless Steel	-	-	-	-	-

From: ₹ 7,681.24
Days to Ship: 11 Day(s) or more

11 Day(s) or more

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Disc-Shaped Coupling - Surface Pressure Type (Single Disc) -

SUNGIL

CAD ：: 2D / 3D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Disc	10 ～ 45	10 ～ 45	56 ～ 88	55 ～ 80	Servo Motor / Stepping Motor	20.01~50.00 ～ 100 < 500	Heat Resistant ～ No Backlash	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	30 ～ 200	0.7	0 ～ 0.02	Coupling Main Body	-	6000 ～ 7700	Aluminum Bronze	Stainless Steel	-	-	-	-	-

From: ₹ 7,871.22
Days to Ship: 10 Day(s) or more

10 Day(s) or more

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Disc-Shaped Coupling, Set Screw Type (Single Disc)

SUNGIL

CAD ：: 2D / 3D

Type	Shaft Bore Dia. (machined) D1(Ø)	Shaft Bore Dia. (machined) D2(Ø)	Outer Dia. A(Ø)	Overall Length W(mm)	Application	Allowable Torque Range(N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range(r/min)	Body Material	Allowable Torque(N•m)	Allowable Angular Misalignment(deg)	Allowable Lateral Misalignment(mm)	Product Category	Allowable Lateral Misalignment Range(mm)	Max. Rotational Speed(r/min)	Buffer Material	Disc Material	Bellows Material	Cleaning Method	Operating Environment	Characteristics/Applications	Environmentally friendly
Disc	10 ～ 45	10 ～ 45	56 ～ 88	44.2 ～ 69.5	Servo Motor / Stepping Motor	20.01~50.00 ～ 100 < 500	Heat Resistant ～ No Backlash	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	30 ～ 120	0.7	0	Coupling Main Body	-	6000 ～ 7700	Aluminum Bronze	Stainless Steel	-	-	-	-	-

From: ₹ 6,763.05
Days to Ship: 5 Day(s) or more

5 Day(s) or more


Brand
Product Series
CAD
From
Days to Ship
Type
Shaft Bore Dia. (machined) D1(Ø)
Shaft Bore Dia. (machined) D2(Ø)
Outer Dia. A(Ø)
Overall Length W(mm)
Application
Allowable Torque Range(N•m)
Features
Allowable Misalignment
Max. Rotational Speed Range(r/min)
Body Material
Allowable Torque(N•m)
Allowable Angular Misalignment(deg)
Allowable Lateral Misalignment(mm)
Product Category
Allowable Lateral Misalignment Range(mm)
Max. Rotational Speed(r/min)
Buffer Material
Disc Material
Bellows Material
Cleaning Method
Operating Environment
Characteristics/Applications
Environmentally friendly

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Brand	NABEYA BI-TECH	NIHON MINIATURE	NIHON MINIATURE	KAYSEVEN	SUNGIL	SUNGIL	SUNGIL	MISUMI	SAKAI MANUFACTURING	SUNGIL	SUNGIL
Product Series	MOS Flexible Coupling - Oldham Type	Super zero Oldham coupling series MMZ type aluminum alloy products	Super zero Oldham coupling series MCZ type aluminum alloy products	K-7 Coupling SD Series	Disc-Shaped Coupling - Clamping Type (Single Disc)	Disc-Shaped Coupling - Set Screw Type (Double Disc) - [SDAA]	Disc-Shaped Coupling - Surface Pressure Type (Double Disc)	Oldham Couplings - Super Short Clamping	Precision Axial Fitting Plate-Spring Type, TAD-C Series	Disc-Shaped Coupling - Surface Pressure Type (Single Disc) -	Disc-Shaped Coupling, Set Screw Type (Single Disc)
CAD	2D / 3D	2D	2D			3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D
From	₹ 2,449.51	₹ 3,191.76	₹ 3,324.02	₹ 2,374.93	₹ 6,175.13	₹ 3,546.27	₹ 10,148.76		₹ 7,681.24	₹ 7,871.22	₹ 6,763.05
Days to Ship	5 Day(s) or more	7 Day(s) or more	5 Day(s) or more	5 Day(s) or more	10 Day(s) or more	10 Day(s) or more	10 Day(s) or more	8 Day(s) or more	11 Day(s) or more	10 Day(s) or more	5 Day(s) or more
Type	Oldham	Oldham	Oldham	Oldham	Disc	Disc	Disc	Oldham	Disc	Disc	Disc
Shaft Bore Dia. (machined) D1(Ø)	1 ～ 14	6	3 ～ 25	3 ～ 9525	10 ～ 45	6 ～ 20	10 ～ 45	3 ～ 10	10 ～ 25	10 ～ 45	10 ～ 45
Shaft Bore Dia. (machined) D2(Ø)	1 ～ 14	8	3 ～ 35	3 ～ 10	10 ～ 45	6 ～ 20	10 ～ 45	3 ～ 10	12 ～ 32	10 ～ 45	10 ～ 45
Outer Dia. A(Ø)	8 ～ 32	25	18 ～ 70	17.5 ～ 25.5	56 ～ 88	42.5 ～ 54	56 ～ 88	12 ～ 25	48 ～ 65	56 ～ 88	56 ～ 88
Overall Length W(mm)	12.7 ～ 33.3	26	25 ～ 53	24.9 ～ 32	44.2 ～ 69.5	50 ～ 71	71 ～ 110	13.5 ～ 22.5	56.5 ～ 72	55 ～ 80	44.2 ～ 69.5
Application	Standard / Stepping Motor	Standard	Standard	Standard	Servo Motor / Stepping Motor	Servo Motor / Stepping Motor	Servo Motor / Stepping Motor	Standard	Standard / Servo Motor / Stepping Motor	Servo Motor / Stepping Motor	Servo Motor / Stepping Motor
Allowable Torque Range(N•m)	0.05~1.00 ～ 1.01~3.00	5.01~10.00	1.01~3.00 ～ 100 < 500	1.01~3.00 ～ 3.01~5.00	20.01~50.00 ～ 100 < 500	5.01~10.00 ～ 20.01~50.00	20.01~50.00 ～ 100 < 500	0.05~1.00 ～ 1.01~3.00	20.01~50.00 ～ 50.01~100.00	20.01~50.00 ～ 100 < 500	20.01~50.00 ～ 100 < 500
Features	-	High Torque ～ Small	High Torque ～ Small	Low Moment of Inertia ～ Vibration Insulation	Heat Resistant ～ No Backlash	Heat Resistant ～ Small	Heat Resistant ～ No Backlash	Low Moment of Inertia ～ Small	High Accuracy ～ Low Moment of Inertia	Heat Resistant ～ No Backlash	Heat Resistant ～ No Backlash
Allowable Misalignment	Angular Misalignment / Eccentricity	Angular Misalignment / Eccentricity	Angular Misalignment / Eccentricity	Not Provided	Angular Misalignment / Eccentricity / Axial Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment	Angular Misalignment / Eccentricity	Angular Misalignment / Eccentricity / Axial Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment
Max. Rotational Speed Range(r/min)	10001~78000	10001~78000	4001~10000 ～ 10001~78000	4001~10000 ～ 10001~78000	4001~10000	4001~10000	4001~10000	4001~10000 ～ 10001~78000	4001~10000	4001~10000	4001~10000
Body Material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum
Allowable Torque(N•m)	0.08 ～ 2.8	6.865	2.452 ～ 176.52	1.76 ～ 3.67	30 ～ 200	6 ～ 22	30 ～ 120	0.3 ～ 1.6	35 ～ 80	30 ～ 200	30 ～ 120
Allowable Angular Misalignment(deg)	2	1	1	-	0.7	3	1	1.5	1	0.7	0.7
Allowable Lateral Misalignment(mm)	0.5 ～ 2	2	1.5 ～ 2.5	-	0 ～ 0.02	0.4 ～ 0.5	0.3	0.3 ～ 1.2	0.26 ～ 0.31	0 ～ 0.02	0
Product Category	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body
Allowable Lateral Misalignment Range(mm)	0.41~1.0 ～ 1.1~3.0	1.1~3.0	1.1~3.0	-	-	0.21~0.40 ～ 0.41~1.0	0.21~0.40	0.21~0.40 ～ 1.1~3.0	0.21~0.40	-	-
Max. Rotational Speed(r/min)	19000 ～ 78000	25000	10000 ～ 25000	10000 ～ 15000	5500 ～ 8200	7500 ～ 8000	6000 ～ 7700	5000 ～ 12000	10000	6000 ～ 7700	6000 ～ 7700
Buffer Material	Polyacetal	Others	Others	Polyacetal	Aluminum Bronze	Aluminum Bronze	Aluminum Bronze	Polyacetal	-	Aluminum Bronze	Aluminum Bronze
Disc Material	-	-	-	-	Stainless Steel	Stainless Steel	Stainless Steel	-	Stainless Steel	Stainless Steel	Stainless Steel
Bellows Material	-	-	-	-	-	-	-	-	-	-	-
Cleaning Method	-	-	-	-	-	-	-	-	-	-	-
Operating Environment	-	-	-	-	-	-	-	-	-	-	-
Characteristics/Applications	-	-	-	-	-	-	-	-	-	-	-
Environmentally friendly	-	-	-	-	-	-	-	-	-	-	-

Configure

Specification/Dimensions

Shaft Bore Dia. (machined) D1(Ø)
1

1.5

2

2.5

3

3.17

3.2

4

4.5

4.76

5

6

6.35

7

7.93

8

9

9.5

9.52

9.525

9.53

10

11

12

12.7

13

14

15

15.875

16

17

18

19

20

20.5

21

22

23

24

25

25.4

26

27

28

29

30

30.5

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

50

52

55

56

58

60

65

70

75

80

0635

09525
[3-5/1Ø Unit(s)]
Drawing

Clear

Shaft Bore Dia. (machined) D2(Ø)
1

1.5

2

2.4

2.5

3

3.17

3.2

4

4.5

4.76

5

6

6.35

7

7.93

8

9

9.25

9.252

9.5

9.52

9.525

9.53

10

11

12

12.7

13

14

15

15.875

16

17

18

19

20

21

22

23

24

25

25.4

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

48

50

52

55

56

58

60

65

70

75

80
Drawing

Clear

Outer Dia. A(Ø)
6

6.4

8

9

9.5

10

12

12.7

13

13.5

14

14.5

15

16

16.1

16.5

16.6

16.8

17

17.5

18

19

19.1

20

21

22

22.2

24

24.5

25

25.4

25.5

26

26.2

26.6

27

27.3

28

29

30

31.7

31.8

32

33

33.3

34

34.4

35

36

38

39

39.5

40

41.3

42

42.5

43

44

44.5

45

46

47

48

49

50

53

53.6

54

54.5

55

56

57

58

60

63

64

65

66

68

69

69.9

70

73

75

79

79.5

80

81

82

83

85

87

88

90

93

94

94.5

95

99

100

102

104

104.5

105

112

117

118

120

125

126

138

140

143

144

150

152

155

160

161

168

170

178

185

190

194

200

210

214

225

246

262

276

308

346
Drawing

Clear

Overall Length W(mm)
5.1

7.3

8.4

9

9.4

9.6

10

10.2

10.5

11.2

11.4

11.8

11.9

12

12.35

12.4

12.7

13

13.5

14

14.2

14.4

14.5

14.6

14.7

14.9

15

15.5

15.6

15.7

15.8

15.9

16

16.2

16.5

16.6

16.7

17

17.4

17.5

17.6

17.8

18

18.1

18.4

18.5

18.7

18.8

19

19.1

19.2

19.35

19.4

19.6

19.7

19.8

20

20.2

20.4

20.5

21

21.2

21.3

21.4

21.5

21.6

22

22.1

22.2

22.5

23

23.05

23.1

23.15

23.2

23.3

23.4

23.5

23.6

24

24.1

24.2

24.4

24.5

24.9

25

25.4

25.5

25.6

25.7

25.9

26

26.2

26.5

26.6

27

27.2

27.3

27.4

28

28.2

28.3

28.4

28.5

28.8

29

29.5

29.8

30

30.2

30.4

30.5

31

31.2

31.4

31.5

31.6

31.7

32

32.2

32.3

32.5

32.6

32.7

32.8

33

33.3

33.5

33.8

34

34.3

34.4

34.5

35

35.6

36

36.1

36.5

36.8

37

37.2

37.4

37.8

38

38.2

38.5

38.6

39

39.2

39.4

39.5

39.7

40

40.5

41

41.8

42

42.2

43

43.2

43.4

43.5

43.6

44

44.2

44.5

44.7

44.8

45

45.2

45.5

46

46.6

47

47.6

48

48.4

49.2

49.4

50

50.2

50.6

50.8

51

51.2

51.3

52

52.8

53

53.4

53.6

54

54.1

54.4

54.5

54.6

55

55.5

56

56.2

56.5

56.6

57

58

58.2

58.5

58.6

59

59.7

59.8

59.9

60

60.4

60.5

61

61.2

62

63

63.4

63.5

63.6

63.7

63.8

64

64.8

65

65.6

66

66.6

66.8

67

67.1

67.5

68

68.3

68.5

68.6

68.7

68.8

69.5

69.6

69.8

70

70.5

70.6

71

71.2

72

72.4

73

73.3

74

74.4

74.8

75

75.6

76.2

77

77.6

77.8

78

78.8

79.5

79.8

80

80.8

81

82

82.5

82.6

83

83.6

84

84.7

85

85.2

85.5

85.6

86

88

89.3

89.5

89.6

89.8

89.9

90

90.5

90.8

91

92

93.6

94

95

95.6

96

97

97.2

98

98.5

98.6

99

99.2

99.6

100

100.2

101

101.6

102

102.5

104

104.4

105.8

106

107.6

108

109

110

112.8

113

114

115

115.6

117.6

118.4

118.8

119.6

120

120.8

121

123.6

124

125

126

127

129

129.6

130

131

136.4

137.6

138

140

141

144

144.2

146

147

150

150.6

153.0

154

154.6

156.4

160

164

164.6

170.6

176

178.4

182.8

192.4

193

200

208.8

209.2

216

217

218

223

238

241.2

249.4

260

286.8

290

307.0

335

337.2

377

391

421

607
Drawing

Clear

Application
- Standard
- Servo Motor
- Stepping Motor
- Encoder
Clear

Allowable Torque Range(N•m)
0.05~1.00

1.01~3.00

3.01~5.00

5.01~10.00

10.01~20.00

20.01~50.00

50.01~100.00

100 < 500

500 < 1000

1000 < 5000

5000 < 10000

10000 < 20000

20000 < 50000
Clear

Features
Clean Environment

Heat Resistant

High Accuracy

High Durability

High Torque

High Torsional Rigidity

Low Moment of Inertia

No Backlash

Small

Standard (Input Prohibited)

Unfinished Shaft Bore

Vacuum Environment

Vibration Insulation
Clear

Allowable Misalignment
- Not Provided
- Angular Misalignment
- Eccentricity
- Axial Misalignment
Larger Image

Clear

Max. Rotational Speed Range(r/min)
100~ 300

1001~2000

2001~4000

4001~10000

10001~78000

78001~
Clear

Body Material
- Stainless Steel
- Steel
- Aluminum
- Alloy
- Plastic
- Aluminum Alloy
Clear

Allowable Torque(N•m)
0.05

0.06

0.08

0.1

0.12

0.147

0.15

0.16

0.18

0.196

0.2

0.21

0.22

0.25

0.3

0.31

0.343

0.35

0.392

0.4

0.42

0.49

0.5

0.54

0.55

0.6

0.65

0.7

0.7845

0.8

0.84

0.9

1

1.1

1.2

1.275

1.3

1.4

1.5

1.6

1.7

1.76

1.8

1.961

2

2.1

2.2

2.3

2.4

2.452

2.5

2.6

2.8

3

3.2

3.3

3.4

3.432

3.5

3.6

3.67

3.8

3.923

4

4.2

4.4

4.5

4.7

4.8

4.9

5

5.4

5.5

5.6

6

6.3

6.4

6.6

6.8

6.865

6.9

7

7.4

7.5

8

8.4

9

9.4

9.6

9.8

9.807

9.81

10

11

11.2

12

12.5

12.6

13

13.1

13.5

14

14.7

15

15.4

15.7

16

17

17.65

17.652

18

19

19.7

20

21

22

23

24

24.5

25

26

27

28

29

29.42

30

31

32

33

34

34.3

35

36

37.3

37.5

38

39.227

40

41

42

44

44.13

45

46

48

49

49.033

50

51

52

53.9

54

56

60

61

65

67

68

70

71

72

75

78.5

79

80

84

85

89

90

92

95

96

98.067

100

107

108

110

114

117

118

120

121

123

130

132

135

137

140

150

151

157

160

170

176

176.52

180

188

190

194

196

198

200

210

215.746

220

226

239

245

250

258

260

265

270

294

300

310

314

320

325

352

380

400

441

450

525

530

580

588

600

637

650

800

810

883

900

980

1000

1120

1300

1370

2000

2100

3400

4000

5000

5400

7000

8000

10000

15000

20000
Calculation of the allowable torque (or the Safety Factor, etc.) differs depending on the manufacturer. For details, see the technical data provided by the relevant manufacturer.
Clear

Allowable Angular Misalignment(deg)
0.1

0.2

0.5

0.6

0.7

1

1.2

1.3

1.4

1.5

1.6

2

2.5

3

3.5

4

5

6

8

10

14
Clear

Allowable Lateral Misalignment(mm)
0

0.01

0.02

0.03

0.05

0.08

0.09

0.1

0.11

0.12

0.14

0.15

0.17

0.18

0.2

0.22

0.23

0.24

0.25

0.26

0.27

0.28

0.3

0.31

0.32

0.33

0.34

0.35

0.36

0.38

0.4

0.44

0.45

0.46

0.47

0.48

0.5

0.51

0.52

0.54

0.55

0.58

0.6

0.63

0.64

0.68

0.7

0.8

0.82

0.84

0.9

0.91

0.92

1

1.05

1.08

1.1

1.12

1.2

1.3

1.33

1.4

1.5

1.6

1.61

1.9

2

2.1

2.3

2.4

2.5

2.6

2.8

2.9

3

3.2

3.3

3.5

3.8

4

4.5

5

6

7

8

10

12
Clear

Product Category
- Coupling Main Body
- Maintenance Components
Clear

Allowable Lateral Misalignment Range(mm)
Less than 0.02

0.02~0.2

0.21~0.40

0.41~1.0

1.1~3.0

3.1~5.0

5.1~100
Clear

Max. Rotational Speed(r/min)
7,700

12,000

14,000

16,000

17,000

18,000

20,000

24,000

27,000

30,000

40,000

250

900

2000

2500

2550

2800

3000

3100

3200

3400

3500

3600

3750

3800

4000

4200

4300

4400

4500

4700

4800

5000

5100

5200

5250

5500

5800

5900

6000

6200

6500

6800

7000

7400

7500

7600

7700

7900

8000

8200

8400

8500

8700

9000

9200

9500

9600

9800

10000

11000

11900

12000

13000

14000

15000

15900

16000

17000

18000

19000

20000

21000

22000

23000

23800

24000

25000

26000

27000

31000

32000

33000

34000

34100

35000

37000

39000

40000

42000

45000

52000

63000

78000

100000
Clear

Buffer Material
- Carbon Reinforced Resin
- Polyacetal
- Polyurethane
- Nylon
- Vespel
- PEEK
- Aluminum Bronze
- Others
- Fluororubber
Clear

Disc Material
- Stainless Steel
- Polyimide
- Carbon Fiber
- Aluminum
- Glass Fiber Reinforced Resin
- Polyacetal
Clear

Bellows Material
- Stainless Steel
- Phosphor Bronze
- Others
Clear

Cleaning Method
- Degreasing
- Precision Cleaning
Clear

Operating Environment
- General
- For Clean Environments
Clear

Characteristics/Applications
Clean washed

Corrosion resistance/chemical resistance

Heat resistance

Low Dust Generation

Vacuum
Clear

Environmentally friendly
- RoHS Compliant (10 Substances)
Clear

Related Categories to Flexible Shaft Couplings

FAQ Flexible Shaft Couplings

Question: What are the different types of flexible Shaft Couplings?: Answer: There are several types of flexible Shaft Couplings, including beam, bellows, jaw, Oldham, disc, diaphragm, and gear couplings. Each type has unique features and benefits that make them suitable for different applications and environments. Flexible Shaft Couplings are used to connect two shafts and allow for misalignment while transmitting torque between them.
Question: What factors should be considered when selecting a flexible Shaft Couplings?: Answer: The factor for selecting a flexible coupling, there are several factors that should be considered, including the required torque capacity, misalignment capability, operating speed, and environmental factors such as temperature and humidity. Other considerations include the required degree of axial and radial stiffness, the space available for the coupling, and the type of equipment being connected. It is also important to consider the potential for wear and tear, maintenance requirements, and the cost of the coupling.
Question: How is a flexible Shaft Couplings installed and maintained?: Answer: Shaft Couplings are installed by aligning the shafts and tightening the screws or bolts. Maintenance involves regular inspections for signs of wear, damage, or misalignment. Lubrication is important to prevent excessive wear and reduce friction. Cleaning and tightening of bolts and screws are also necessary to ensure proper operation.
Question: What is the difference between a flexible coupling and a rigid coupling?: Answer: A flexible coupling allows for some misalignment between two connected shafts while transmitting torque, while a rigid coupling does not allow for any misalignment. Flexible Shaft Couplings are designed to absorb shock and vibration, which can help reduce wear and tear on connected equipment. Rigid couplings, on the other hand, are used in applications where precise alignment between shafts is critical, such as in high-speed rotating equipment or precision machinery.

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Flexible Shaft Couplings（Body Material：Aluminum Page3）

Configure

Specification/Dimensions

Shaft Bore Dia. (machined) D1(Ø)

Shaft Bore Dia. (machined) D2(Ø)

Outer Dia. A(Ø)

Overall Length W(mm)

Application

Allowable Torque Range(N•m)

Features

Allowable Misalignment

Max. Rotational Speed Range(r/min)

Body Material

Allowable Torque(N•m)

Allowable Angular Misalignment(deg)

Allowable Lateral Misalignment(mm)

Product Category

Allowable Lateral Misalignment Range(mm)

Max. Rotational Speed(r/min)

Buffer Material

Disc Material

Bellows Material

Cleaning Method

Operating Environment

Characteristics/Applications

Environmentally friendly

Related Categories to Flexible Shaft Couplings

FAQ Flexible Shaft Couplings

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Customer Service

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