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Part Number Complete

C-AHTFW25-H8M300-12

type Belt Width Used Number of Teeth Shaft Bore Dia. d Days to Ship

Specification/Dimensions

type
- C-AHTFW□□-H8M
- C-AHTF□□-H8M
Clear
Belt Width Used(mm)
15

25

30

40
Clear
Number of Teeth(T)
20

22

24

25

26

28

30

32

34

40
Clear
Shaft Bore Dia. d(mm)
12

15

20

25
Clear

Days to Ship

All

Same day

19 Day(s) or Less
Clear

Specify Alterations

Idlers HTD 8M (C-AHTFW25-H8M300-12)

Volume Discount

Brand :

MiSUMi Economy

Order Qty :
Total Price :

---
Days to ship :

---

Select part number to Order Now/ Add to Cart

CAD Data unavailable

Economy HTD 8M Idler Pulley

Belt widthIdler pulleyFactory automation

- Cost-effective aluminum alloy

- Fits multiple belt widths.

- Variety of teeth counts available

- Central or side bearings

- Clear anodized for longevity

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product of Timing Pulley Overview

Economy series products of Timing Pulley, please order more than 2 pcs
Usually, flat-belt pulleys and flat belts are widely used in mechanisms design for transmitting rotational power generated by motors. Driving and transmission are realized through the friction fit between flat-belt pulleys and flat belts.

Product of Timing Pulley Features

■Timing Pulley Tooth Profile Engagement of MISUMI Economy series Idlers
・MISUMI Economy series idlers tooth profiles conform to JIS and ISO standards, matching with the standard belt tooth profile for smoother rotation.

5M Tooth Profile	MISUMI Economy series (Good engagement)	Products circulating on the market *
Engagement of Timing Pulley and Timing Belt
Clearance	Small	Large
Positioning Accuracy	Height	Low

* Problems of generic products of Timing Pulley in the market

■Rotation Stability of MISUMI Economy series Idlers

・MISUMI economy series idler uses MISUMI Economy series bearing with stabler quality and lower noise

・The tooth surface runout control of the Economy series idler is consistent with the standard product of Timing Pulley, and the belt drive is smoother.

(Unit: mm)

Diameter of Pulley Tooth Top Circle d0	5.96≤d0≤203.20
Runout Tolerance (Circumferential Runout)	≤0.13

Dimensional of Timing Pulley Drawing

●Central Bearing		●Both Sides Bearing
<Single Bearing>	<Double Bearing>

Bearing is pressed fit.
Timing Pulley

Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)
Timing Pulley

MISUMI makes no commitment to the bearing brand

Tapped Hole Size Table
(Shaft Bore Specs.: P·N)

d_H7 Shaft Hole ID	2-M (Coarse Thread)	Single Model of Fixing Screw	Box Model of Fixing Screw
8 to 12	M4	MSSU4-3	BOX-MSSU4-3
13 to 17	M5	MSSU5-4	BOX-MSSU5-4
18 to 20	M6	MSSU6-5	BOX-MSSU6-5

Timing Pulley are not provided with fixing screws. You may purchase them separately referring to the recommended fixing screw models.

Specifications of Timing Pulley Overview

Material		Surface Treatment
Timing Pulley	Flange	Surface Treatment
Aluminum Alloy	Aluminum Alloy	Clear Anodized

Usage of Timing Pulley Method

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

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

HTD 8M timing belt idlers, suitable for MISUMI HTD 8M timing belts.

Example of Timing Pulley Use

■Timing Pulley Mechanism name
Belt tension device (manual)

■Mechanism function
1. Move the roller on the adjustment side, and tighten and fix it when the conveyor belt opens.
2. For multiple driving applications, the engagement rate can be improved by setting the roller in the middle position.

■ Role of the timing belt idler
1. The belt is tensioned by fixing the belt assembly distance with the timing belt idler
and with the assistance of the urethane roller.

For more information, please click Example for Belt Tension Device.

Related of Timing Pulley Industries

Semiconductor	Automotive	Smart phone

Medical	Electronic & Electrical Appliances	Robotics

Timing Pulley Precautions

Bearing is pressed fit.
Timing Pulley

Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)
Timing Pulley

MISUMI makes no commitment to the bearing brand

Related of Timing Pulley Products

Idlers HTD 3M	Idlers HTD 5M	Timing Belts HTD 8M

Typical Timing Pulley model C-HTPA14H3M060-K-P5	Typical Timing Pulley model: C-HTPA14H5M090-A-N8	Typical Timing Pulley model: C-HTBN1000H8M-200
Advantages: short delivery time, multiple types	Advantages: Short delivery time, multiple types	Advantages: short delivery time, multiple types

: 30; 45; 60

Part Number
C-AHTFW25-H8M300-12

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Belt Width Used (mm)	Number of Teeth (T)	Shaft Bore Dia. d (mm)
	₹ 1,718.00	2 Piece(s)	Available	19 Day(s)	10	30	25	12

Dimensional Drawing

●Central Bearing		●Both Sides Bearing
<Single Bearing>	<Double Bearing>

Bearing is pressed fit.

Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)

MISUMI makes no commitment to the bearing brand

Tapped Hole Size Table
(Shaft Bore Specs.: P·N)

d_H7 Shaft Hole ID	2-M (Coarse Thread)	Single Model of Fixing Screw	Box Model of Fixing Screw
8 to 12	M4	MSSU4-3	BOX-MSSU4-3
13 to 17	M5	MSSU5-4	BOX-MSSU5-4
18 to 20	M6	MSSU6-5	BOX-MSSU6-5

Timing pulleys are not provided with fixing screws. You may purchase them separately referring to the recommended fixing screw models.

Specification Table

Material		Surface Treatment
Pulley	Flange	Surface Treatment
Aluminum Alloy	Aluminum Alloy	Clear Anodized

■ Dimension Specification Table

Part Number		Shaft Diameter d	P.D.	O.D.	F	E	A	W	S	Bearing size
Number of Teeth	Applicable Belt	Shaft Diameter d	P.D.	O.D.	F	E	A	W	S	No.	D	B
20	H8M150	12	50.93	49.56	58	40	17	22	6	6201ZZ×1	32	10
20	H8M250	15	50.93	49.56	58	40	28	33	5.5	6202ZZ×2	35	11
22	H8M150	12	56.02	54.65	61	45	17	22	6	6201ZZ×1	32	10
24	H8M150	12	61.12	59.74	67	50	17	22	6	6201ZZ×1	32	10
	H8M250	12					28	33	6.5	6201ZZ×2	32	10
	H8M300	15					33	38	8	6202ZZ×2	35	11
	H8M400	15					44	49	13.5	6202ZZ×2	35	11
25	H8M150	15	63.66	62.29	70	56	17	22	5.5	6202ZZ×1	35	11
26	H8M150	15	66.21	64.84	74	58	17	22	5.5	6202ZZ×1	35	11
28	H8M150	15	71.3	69.93	80	60	17	22	5.5	6202ZZ×1	35	11
30	H8M150	15	76.39	75.02	87	67	17	22	5.5	6202ZZ×1	35	11
	H8M250	15					28	33	5.5	6202ZZ×2	35	11
	H8M300	20					33	38	5	6204ZZ×2	47	14
	H8M400	20					44	49	10.5	6204ZZ×2	47	14
32	H8M150	20	81.49	80.12	87	67	17	22	4	6204ZZ×1	47	14
34	H8M150	20	86.58	85.21	95	75	17	22	4	6204ZZ×1	47	14
40	H8M150	25	101.86	100.49	111	90	17	22	3.5	6205ZZ×1	52	15

Part Number		Shaft Diameter d	P.D.	O.D.	F	E	A	W	Dh	Bearing size
Number of Teeth	Applicable Belt									No.	D	B
22	H8M250	12	56.02	54.65	61	45	28	33	27	6201ZZ×2	32	10
	H8M300						33	38
	H8M400						44	49
24	H8M250	12	61.12	59.74	67	50	28	33	27	6201ZZ×2	32	10
	H8M300						33	38
	H8M400						44	49
25	H8M250	12	63.66	62.29	70	56	28	33	27	6201ZZ×2	32	10
	H8M300						33	38
	H8M400						44	49
26	H8M150	12	66.21	64.84	74	58	17	22	25	6001ZZ×2	28	8
	H8M250						28	33
	H8M300						33	38	27	6201ZZ×2	32	10
	H8M400						44	49
28	H8M250	15	71.3	69.93	80	60	28	33	30	6202ZZ×2	35	11
	H8M300						33	38
	H8M400						44	49
30	H8M150	15	76.39	75.02	87	67	17	22	29	6002ZZ×2	32	9
	H8M250						28	33
	H8M300						33	38	30	6202ZZ×2	35	11
	H8M400						44	49
30	H8M250	20	76.39	75.02	87	67	28	33	37	6004ZZ×2	42	12
	H8M300						33	38	41	6204ZZ×2	47	14
	H8M400						44	49
32	H8M250	20	81.49	80.12	87	67	28	33	41	6204ZZ×2	47	14
	H8M300						33	38
	H8M400						44	49
34	H8M250	20	86.58	85.21	95	75	28	33	41	6204ZZ×2	47	14
	H8M300						33	38
	H8M400						44	49
40	H8M250	25	101.86	100.49	111	90	28	33	43	6005ZZ×2	47	12
	H8M300						33	38	47	6205ZZ×2	52	15
	H8M400						44	49

Basic Information

Type	Idlers with Teeth	Belt Type	8M	Material	Ultra Super Duralmin Type Aluminum Alloy
Surface Treatment	Clear Anodize	Timing Pulley / Idler	Idlers

Please check the type/dimensions/specifications of the part C-AHTFW25-H8M300-12 in the Idlers HTD 8M series.

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

Product variants

Part Number
C-AHTF24H8M150
C-AHTF24H8M250
C-AHTF24H8M300
C-AHTFW25-H8M400-12
C-AHTFW26-H8M150-12
C-AHTFW26-H8M250-12

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Belt Width Used (mm)	Number of Teeth (T)	Shaft Bore Dia. d (mm)
₹ 1,281.33	2 Piece(s)	Available	19 Day(s)	10	15	24	12
₹ 1,464.00	2 Piece(s)	Available	19 Day(s)	10	25	24	12
₹ 1,569.00	2 Piece(s)	Available	19 Day(s)	10	30	24	15
₹ 1,960.00	2 Piece(s)	Available	19 Day(s)	10	40	25	12
₹ 1,356.00	2 Piece(s)	Available	19 Day(s)	10	15	26	12
₹ 1,598.00	2 Piece(s)	Available	19 Day(s)	10	25	26	12

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