Why does the flange drop during use of a timing pulley?

The function of the flange is to prevent production accidents caused by deviation and drop of the timing belt. Therefore, the flange drops mainly because it is squeezed off by the timing belt that has deviated for a long time. We recommend that the customer regularly check the condition of the timing belt of the equipment to avoid its deviation.

Why does the timing pulley has no threaded hole?

If you have requirements for fixing screws, we recommend that you choose a timing pulley with the shaft hole specification P (round hole + threaded hole) or N·C (keyway hole + threaded hole).

What should be done if there is jitter during use of a timing belt?

Readjust the tension of the timing pulley. Generally, the belt runs unstably due to excessive shaft spacing and insufficient tension.

Why cannot be the threaded hole of a MISUMI aluminum timing pulley locked tightly?

As the aluminum material is relatively soft, slippage may occur if the tightening force is too large during locking. We recommend that the customer stops tightening once an obstruction is felt.

How to fix a timing pulley when the shaft hole specification is H (round hole)?

Generally, H (round hole) can be used only after additional processing. If you need a product that can be directly fixed and used, please choose MISUMI P (round hole + threaded hole) or N (keyway hole + threaded hole) specifications.

What does the number in the timing pulley S2M, S3M, P2M, P3M, T5, T10, 2GT, 3GT, etc. mean?

It mainly represents the tooth pitch of the belt, that is, the distance between two adjacent teeth. They are also the tooth profile models in the timing belt industry.

How to choose a timing belt after selecting a timing pulley?

First, the series must be matched. For example, the timing belts of S2M, S3M, and S5M can only match the timing pulleys of S2M, S3M, and S5M. Then, select the timing belt with an width corresponding to the ones indicated in the timing pulley specifications. Finally, select the needed perimeter.

What does the number in the timing pulley S2M, S3M, P2M, P3M, T5, T10, 2GT, 3GT, etc. mean?

It mainly represents the tooth pitch of the belt, that is, the distance between two adjacent teeth. They are also the tooth profile models in the timing belt industry.

Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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Part Number Complete

C-HTPA24S3M100-A-H4

Type Belt Width Used Number of Teeth Pulley Shape Material Shaft Bore Dia. d Shaft Hole Shape type CAD Days to Ship

Specification/Dimensions

Type
- Timing Pulleys
Clear
Belt Width Used(mm)
6

10

15
Clear
Number of Teeth(T)
14

15

16

18

20

22

24

25

26

28

30

32

34

36

40

44

48
Clear
Pulley Shape
- Shape A
- Shape B
- Shape K
Clear
Material
- Aluminum
  - Aluminum Alloy
  - Ultra Super Duralmin Type Aluminum Alloy
Clear
Shaft Bore Dia. d(mm)
4

5

6

6.35

8

10

K10

11

12

12.7

13

14

15

16

19

20
Clear
Shaft Hole Shape
- N
- P
Clear
type
- C-HTPA□□S3M
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

7 Day(s) or Less

9 Day(s) or Less

16 Day(s) or Less
Clear

Specify Alterations

Timing Pulleys S3M (C-HTPA24S3M100-A-H4)

Volume Discount

Check FAQ of this product (8 items)

Brand :

MiSUMi Economy

Order Qty :
Total Price :

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Days to ship :

---

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CAD Download

Product Description

Timing Pulleys S3M
Timing Pulleys are an economy item, The price is cheaper than the MISUMI standard product. They offer a wide variety of sizes to choose from.
[Feature]
● Belt Width Used (mm.) : 6, 10 and 15
● Applicable with Belt Type : S3M
● Number of Teeth Minimum/Maximum : 14 to 48
● Shaft Bore Diameter Minimum/Maximum (mm.) : 4 to 20
● Shaft Bore Specs. : Can select between Round Hole, Round Hole + Tap and New JIS keyway + Tap
● Material : Aluminum Alloy
● Surface treatment : Clear Anodized
[Application]
Timing pulleys are frequently utilized in systems that incorporate timing belts to regulate and govern the movement of the machinery.

Economy S3M Timing Pulley

Timing pulleysAluminum pulleysPower transmission

- Wide variety of sizes from 14 to 48 teeth

- Made of durable and lightweight aluminum

- Easy assembly with chamfered fixing screw holes

- Suitable for medium-precision reciprocating and conveyance systems

- Clear anodized surface for enhanced corrosion resistance

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product Overview

Usually, timing pulleys, timing idlers and timing belts are widely used to design mechanisms for transmitting rotational power generated by motors.
Driving and transmission are realized through the engagement between the teeth, timing idlers and timing belts.

Dimensional Drawings

■Standard Tooth Profile	■Pulley Shape Shape K	Shape A	Shape B

The tooth groove size varies slightly with the number of teeth (Tooth pitch: 3.0mm）
■Shalf Hole Specs. H Round Hole	P Round Hole+Tap	N New JIS Keyway+Tap

	For Shape A pulley, the tapped holes are set around 120° to avoid interference with the tooth top. The flange is riveted	Detailed Dimensions of Keyway The positions of keyway and teeth are not fixed.

Threaded Hole Size Table
(Shaft hole specifications: P·N·C）

dH7 Shaft Hole ID	M （Coarse Thread）	Recommended Fixing Screw
4~5	M3	M3×3
6～17	M4	M4×3
18～33	M5	M5×4
34～42	M6	M6×5

Specifications Overview

Material		Surface Treatment
Pulley	Flange

Aluminum Alloy	Aluminum Alloy	Clear Anodized

Specifications Table

Part Number			Pulley Shape	Shaft Hole Specs .P Hole Dia. d	P.D.	O.D.	F	E
Type	Number of Teeth	Belt Type
C－HTPA	15	S3M100	A	5	14.32	13.56	18	11
	16			5	15.28	14.52	18	11
	18			5·6	17.19	16.43	20	13
	20			5·6	19.1	18.34	22	14
		S3M150		6
	22	S3M100		5·6·6.35·8	21.01	20.05	25	16
		S3M150		8
	24	S3M060		4·5·6·6.35·8·10	22.92	22.16	25	16
		S3M100		5·6·6.35·8·10
		S3M150		6·8
	25	S3M060		4·5·6·6.35·8·10	23.87	23.11	28	18
		S3M100		4·5·6·6.35· 8·10·11
		S3M150		8
	26	S3M060		5·6·6.35·8·10	24.83	24.07	28	18
		S3M100		5·6·6.35·8·10
		S3M150		8
	28	S3M060		5·6·6.35·8·10·12	26.74	25.98	30	20
		S3M100		5·6·6.35·8· 10·12·13
		S3M150		8
	30	S3M060		6·6.35·8·10· 12·14·15	28.65	27.89	32	23
		S3M100		6·6.35·8·10·12· 12.7·13·14·15
		S3M150		8·10·12·14
	32	S3M060		8·10·12·16	30.56	29.8	35	25
		S3M100		6·6.35·8·10·12·14
		S3M150		8
	34	S3M100		6·8·10·18	32.47	31.71	40	28
		S3M150		8
	36	S3M060		6·6.35·8·10·12	34.38	33.62	40	28
		S3M100		6·6.35·8·10
		S3M150		8·10·12
	40	S3M060		8·12	38.2	37.44	44	32
		S3M100		8·10·12·20
		S3M150		8·10
	44	S3M100		8·10·14·25	42.02	41.25	48	36
	48	S3M060		8·10	45.84	45.07	50	38
		S3M100		8·10·12
	50	S3M060		10	47.75	46.98	52	40
		S3M100		8·10·22
	60			30	57.3	56.53	61	46
	72			10·12.7·30	68.75	67.99	74	58

Part Number			Pulley Shape	Shaft Hole Specs .N Hole Dia. d	P.D.	O.D.	F	E
Type	Number of Teeth	Belt Type
C－HTPA	25	S3M060	A	8·10·NK10	23.87	23.11	28	18
		S3M100		8·10·11·NK10
		S3M150		8·10·11
	26	S3M060		8·10	24.83	24.07	28	18
		S3M100		8·10·11·NK10
		S3M150		8·10·NK10
	28	S3M060		8·10·12	26.74	25.98	30	20
		S3M100		8·10·11·12·13
		S3M150		8·10·12
	30	S3M060		8·10·12·14	28.65	27.89	32	23
		S3M100		8·10·11·12· 13·14·NK10
		S3M150		8·10·12·14·NK10
	32	S3M060		8·10·12·14·17	30.56	29.8	35	25
		S3M100		8·10·11·12·14· 15·16·17·NK10
		S3M150		8·10·12·14· 15·16·NK10
	34	S3M100		8·10·11·12·14·15	32.47	31.71	40	28
		S3M150		10·12·14·15
	36	S3M060		8·12	34.38	33.62	40	28
		S3M100		8·10·11·12·14· 15·17·NK10
		S3M150		10·12·13·14· 15·NK10
	40	S3M100		8·10·11·12· 14·15·20	38.2	37.44	44	32
		S3M150		10·11·12·14· 15·17·19·20
	44	S3M100		8·10·12·14· 15·NK10	42.02	41.25	48	36
		S3M150		12·14
	48	S3M060		15	45.84	45.07	50	38
		S3M100		8·10·14·15
		S3M150		10·12·19
	50	S3M100		8·10·14·20·25	47.75	46.98	52	40
		S3M150		14·15·29
	60	S3M060		8	57.3	56.53	61	46
		S3M100		8·12·14
		S3M150		10·12·19·22
	72	S3M100		20·25	68.75	67.99	74	58
		S3M150		12

Detailed specifications are available on the official website

Part Number			Pulley Shape	Shaft Hole Specs.H Hole Dia. d	P.D.	O.D.	F	E
Type	Number of Teeth	Belt Type
C－HTPA	14	S3M060	A	5·6	13.37	12.61	16	10
	15			5·6	14.32	13.56	18	11
	16			5·7	15.28	14.52	18	11
		S3M100		6·7
	18	S3M060		5·6·8	17.19	16.43	20	13
		S3M100		6.35·8
	19			8	18.14	17.28	22	14
	20	S3M060		5·6·8·9	19.1	18.34	22	14
		S3M100		8
	22	S3M060		5·6·8·10	21.01	20.25	25	16
	24			10	22.92	22.16	25	16
		S3M100		4·8
	26	S3M060		5	24.83	24.07	28	18
		S3M100		10
	28	S3M060		8	26.74	25.98	30	20
		S3M100		13
	30			10·12·18	28.65	27.89	32	23
	32			6.35·8	30.56	29.8	35	25
	60			22·28	57.3	56.53	61	46

Part Number			带轮形状	Shaft Hole Specs.H Hole Dia. d	P.D.	O.D.	D	F	E
Type	Number of Teeth	Belt Type	带轮形状	Shaft Hole Specs.H Hole Dia. d	P.D.	O.D.	D	F	E
C－HTPA	24	S3M100	B	6·6.35	22.92	22.16	14	25	16
	28			6.35·8	26.74	25.98	18	30	20
	32			14	30.56	29.8	20	35	25
	48	S3M060		20	45.84	45.07	34	50	38

Part Number			Pulley Shape	Shaft Hole Specs.P Hole Dia. d	P.D.	O.D.	D	F	E
Type	Number of Teeth	Belt Type
C－HTPA	24	S3M060	B	5·6·6.35·8	22.92	22.16	14	25	16
		S3M100		5·6·6.35·8
		S3M150		8
	25	S3M060		5·6·8·10	23.87	23.11	16	28	18
		S3M100		5·6·6.35·8·10
	26	S3M060		8·10	24.83	24.07	16	28	18
		S3M100		6.35·8
	28	S3M060		5·6.35·8·10	26.74	25.98	18	30	20
		S3M100		5·6·6.35·8
	30	S3M060		8·10	28.65	27.89	20	32	23
		S3M100		6.35·8·10·12
		S3M150		8·12
	32	S3M060		8·10	30.56	29.8	20	35	25
		S3M100		6.35·8
		S3M150		6.35·8
	34	S3M060		8·14	32.47	31.71	26	40	28
		S3M100		8·10·12·14
	36	S3M060		13	34.38	33.62	26	40	28
		S3M100		6.35·8
	40			8·10·11·12· 14·18·20	38.2	37.44	30	44	32
	48	S3M060		8	45.84	45.07	34	50	38
	50	S3M100		8	47.75	46.98	34	52	40
	72			15	68.75	67.99	50	74	58

Part Number			Pulley Shape	Shaft Hole Specs.H Hole Dia. d	P.D.	O.D.	D	F	E
Type	Number of Teeth	Belt Type	Pulley Shape	Shaft Hole Specs.H Hole Dia. d	P.D.	O.D.	D	F	E
C－HTPA	16	S3M060	K	5	15.28	14.52	18	18	11
	18	S3M150		8	17	16.43	20	20	13
	20	S3M060		5·8	19.1	18.34	22	22	14
	22	S3M100		5	21.01	20.25	25	25	16

Part Number			Pulley Shape	Shaft Hole Specs.P Hole Dia. d	P.D.	O.D.	D	F	E
Type	Number of Teeth	Belt Type
C－HTPA	14	S3M060	K	4·5·6	13.37	12.61	16	16	10
		S3M100		4·5·6
	15	S3M060		5·6	14.32	13.56	18	18	11
		S3M100		5·6
	16	S3M060		4·5·6·6.35	15.28	14.52	18	18	11
		S3M100		5·6·7·6.35
		S3M150		6.35
	18	S3M060		5·6·6.35·8	17.19	16.43	20	20	13
		S3M100		5·6·6.35·8
		S3M150		8
	20	S3M060		4·5·6·6.35·8	19.1	18.34	22	22	14
		S3M100		5·6·6.35·8
		S3M150		8
	22	S3M060		5·6·6.35·8	21.01	20.25	25	25	16
		S3M100		5·6·6.35·8·10
		S3M150		10

Detailed specifications are available on the official website

Part Number			Pulley Shape	Shaft Hole Specs.N Hole Dia. d	P.D.	O.D.	D	F	E
Type	Number of Teeth	Belt Type
C－HTPA	25	S3M060	B	8	23.87	23.11	16	28	18
		S3M100		8
		S3M150		8
	26	S3M060		8	24.83	24.07	16	28	18
		S3M100		8
		S3M150		8
	28	S3M100		8	26.74	25.98	18	30	20
	30	S3M060		8	28.65	27.89	20	32	23
		S3M100		8·10·11·NK10
		S3M150		8
	32	S3M060		8	30.56	29.8	20	35	25
		S3M100		8·10
		S3M150		8
	34	S3M100		8·10·12·13·14	32.47	31.71	26	40	28
		S3M150		14
	36	S3M060		10·14	34.38	33.62	26	40	28
		S3M100		14
	40	S3M100		8·10·14·15	38.2	37.44	30	44	32
		S3M150		14
	44	S3M100		8	42.02	41.25	32	48	36
	48	S3M150		16	45.84	45.07	34	50	38
	50	S3M060		8	47.75	46.98	34	52	40
	60	S3M100		8	57.3	56.53	39	61	46

Please visit MISUMI website for details of the models available for sale.

Product Features

■ Differentiation and use of Misumi economy pulleys and Misumi standard products/customer exmaple of use

	New Products	Existing Products
Example of use
Precautions	Generally used in reciprocating and conveyance mechanisms that do not have high requirements on positioning accuracy.	Generally used in mechanisms that frequently rotate forwardly and reversely and have requirements on positioning accuracy and backlash.
Repetitive positioning accuracy (reference value)	Medium precision (±0.1)	High precision (±0.05)

■Easier on-site assembly
·MISUMI Economy series timing pulley is chamfered at the shaft hole and tapped hole for easy installation, reducing assembly time by 27% compared to the timing pulley not chamfered
MISUMI Timing Pulley Assembly Time

※Generic products on the market are similar products randomly purchased by our company from online or offline markets
※The test result are obtained through testing by our company, which are for reference only

■Longer Timing Belt Life
·MISUMI Economy series timing pulley, with deburring treatment at the threaded hole, is not easy to wear the timing belt, and the price is cheap while increasing the lifetime of the timing belt.

Belt condition after the test of timing belt pulley without chamfer on the threaded hole:

there are obvious wear marks left by the pulley tooth threaded hole on the belt tooth surface.

【Test Condition】
Belt Specification: S5M
Belt Width: 150mm
Number of teeth of
drive side pulley: 20
Number of teeth of
driven side pulley: 60
Rotational speed: 3000rpm
Tension (N): 160N
Test time: 24H

※Problems of generic products on the market

Precautions

Timing PulleyTiming Pulley For hole specifications P (round hole + threaded hole) or N (round hole + keyway hole), the fixing screws are not included, and you may purchase them from MISUMI according to the recommended fixing screw models.

Timing PulleyThere may be no surface treatment in the shaft hole.

Timing PulleyThe positions of keyway and tooth are not fixed.

Usage Method

Usage Method Example Drawing	Usage Method of Timing Wheel and Timing Belt
	①Driving The driven wheel is driven by the driving wheel for transmission
	②Linear driving Reciprocating motion is carried out through the self-end timing toothed belt.

Usage Method Example Drawing	Usage Method of Timing Wheel and Timing Belt
	③Conveyance Plates are conveyed by two timing toothed belts
	④Traction transmission Workpieces are clamped and transmitted by the belt

Timing Pulleys S Type, suitable for MISUMI Standard Timing Belts and Economy Series Timing Belts.

Example of Use

Example drawing of a workpiece reversal transfer mechanism designed using MISUMI timing pulley

■Mechanism name
Workpiece reversal transfer mechanism

■ Mechanism function
Rotates the workpiece on the conveyor belt by 90 degrees and transfers it to the next process.
At this time, the clamping mechanism rotates 180 degrees and does not change the direction of the workpiece relative to the conveying direction at the same time during transfer.

■Role of the Timing Pulley
The transmission of the timing pulley and the timing belt changes the placement direction of the workpiece while transferring the workpiece. (Applicable to S specification and GT specification timing pulleys)

Application Industries

Semiconductor	Automotive	Smart Phones

Medical	Electronic & Electrical	Robotics

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
C-HTPA24S3M100-A-H4

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Type	Belt Width Used (mm)	Number of Teeth (T)	Pulley Shape	Material	Shaft Bore Dia. d (mm)	Shaft Hole Shape
	₹ 1,090.47	1 Piece(s)	Available	7 Day(s)	10	-	-	-	-	-	-	-

Basic Information

Belt Type	S3M	Surface Treatment	Clear Anodize	Timing Pulley / Idler	Pulleys

Please check the type/dimensions/specifications of the part C-HTPA24S3M100-A-H4 in the Timing Pulleys S3M series.

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: Why does the flange drop during use of a timing pulley?: Answer: The function of the flange is to prevent production accidents caused by deviation and drop of the timing belt. Therefore, the flange drops mainly because it is squeezed off by the timing belt that has deviated for a long time. We recommend that the customer regularly check the condition of the timing belt of the equipment to avoid its deviation.
Question: Why does the timing pulley has no threaded hole?: Answer: If you have requirements for fixing screws, we recommend that you choose a timing pulley with the shaft hole specification P (round hole + threaded hole) or N·C (keyway hole + threaded hole).
Question: What should be done if there is jitter during use of a timing belt?: Answer: Readjust the tension of the timing pulley. Generally, the belt runs unstably due to excessive shaft spacing and insufficient tension.
Question: Why cannot be the threaded hole of a MISUMI aluminum timing pulley locked tightly?: Answer: As the aluminum material is relatively soft, slippage may occur if the tightening force is too large during locking. We recommend that the customer stops tightening once an obstruction is felt.
Question: How to fix a timing pulley when the shaft hole specification is H (round hole)?: Answer: Generally, H (round hole) can be used only after additional processing. If you need a product that can be directly fixed and used, please choose MISUMI P (round hole + threaded hole) or N (keyway hole + threaded hole) specifications.
Question: What does the number in the timing pulley S2M, S3M, P2M, P3M, T5, T10, 2GT, 3GT, etc. mean?: Answer: It mainly represents the tooth pitch of the belt, that is, the distance between two adjacent teeth. They are also the tooth profile models in the timing belt industry.
Question: How to choose a timing belt after selecting a timing pulley?: Answer: First, the series must be matched. For example, the timing belts of S2M, S3M, and S5M can only match the timing pulleys of S2M, S3M, and S5M. Then, select the timing belt with an width corresponding to the ones indicated in the timing pulley specifications. Finally, select the needed perimeter.
Question: What does the number in the timing pulley S2M, S3M, P2M, P3M, T5, T10, 2GT, 3GT, etc. mean?: Answer: It mainly represents the tooth pitch of the belt, that is, the distance between two adjacent teeth. They are also the tooth profile models in the timing belt industry.

Check other FAQ (5 items) Hide

Product variants

Part Number
C-HTPA14S3M060-K-P5
C-HTPA14S3M060-K-P6
C-HTPA14S3M100-K-P4
C-HTPA24S3M100-A-H8
C-HTPA24S3M100-A-P10
C-HTPA24S3M100-A-P5

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Type	Belt Width Used (mm)	Number of Teeth (T)	Pulley Shape	Material	Shaft Bore Dia. d (mm)	Shaft Hole Shape
₹ 720.00	1 Piece(s)	Available	Same day Stock	10	-	6	14	Shape K	[Aluminum] Ultra Super Duralmin Type Aluminum Alloy	-	P
₹ 720.00	1 Piece(s)	Available	Same day Stock	10	-	6	14	Shape K	[Aluminum] Ultra Super Duralmin Type Aluminum Alloy	-	P
₹ 1,121.24	1 Piece(s)	Available	7 Day(s)	10	-	-	-	-	-	-	-
₹ 1,090.47	1 Piece(s)	Available	7 Day(s)	10	-	-	-	-	-	-	-
₹ 483.00	1 Piece(s)	Available	Same day Stock	10	Timing Pulleys	10	24	Shape A	[Aluminum] Aluminum Alloy	10	P
₹ 480.00	1 Piece(s)	Available	Same day Stock	10	Timing Pulleys	10	24	Shape A	[Aluminum] Aluminum Alloy	5	P

Flat-belt idlers, Width (T), 6 to 32 mm	Flat Belts For General Use	High Torque Timing Pulleys S2M Type

Representative model: HBG15-6	Representative model: HBLT350-4.23	Representative model: HTPA48S2M040-B-N10
Advantages: short delivery time, multiple types	Advantage: custom size	Advantages: short delivery time, multiple types

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