Tensioner Idlers / toothed / profile selectable / flanged pulley deselectable / single bearing, double bearing / aluminium

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Technical Information

Back to the Category Toothed Pulleys/Timing Pulleys/Idler Pulleys

Technical Drawing - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Flanged Idlers with Teeth - Center Bearing:Related Image

Open the technical drawing in the new window

Available dimensions and tolerances can be found under the tab More Information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Type		Material			Surface Treatment
Center Bearing	Both Sides Bearing	Main Body	Flange	Bearing
AHTF	AHTFW	Aluminum Alloy 2000 series	EN AW-5052 Equiv.	Steel	Clear Anodize
-	KHTFW				Hard Clear Anodize *

* Hard Clear Anodize: Film Hardness 300HV ~

Further specifications can be found under the tab More Information.

Composition of a Product Code - Toothed Pulleys/Timing Pulleys/Idler Pulleys

• Center Bearing

Part Number

Type	Number of Teeth	Applicable Belt
AHTF AHTF	25 16	T5100 -AT10150

• Both Sides Bearing

Part Number				-	d

Type	Number of Teeth	-	Applicable Belt
AHTFW AHTFW	24 16	- -	T5200 AT10150	- -	10 12

* Only for AT10, hyphen ("-") is inserted between the "Number of Teeth" order No. and the "Applicable Belt" order No.

Alterations - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Here to the Overview of Options as PDF .

General Information - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Toothed pulley - synchronous pulley - belt pulley - product assortment

Selection details of toothed pulleys/timing pulleys/idler pulleys

- Material: aluminum, steel, stainless steel (stainless steel), plastic

- Coatings: uncoated, burnished, anodized, nickel-plated

- Profile form: 1.5GT, 2GT, 3GT, 5GT, P2M, P3M, P5M, P8M, S2M, S3M, S5M, S8M, S14M, T2.5, T5, T10, AT5, AT10, 5M, 8M, 14M, 8YU, H, L, MXL, XL, PowerGrip GT3: MR2, MR3, MR5

- ISO tolerances: H7

- Belt width (mm): 4, 4.8, 6, 6.4, 7, 7.9, 9, 9.5, 10, 12, 12.7, 15, 18, 19.1, 20, 25, 25.4, 26, 28, 30, 31, 38,1, 40, 50, 50.8, 53, 60, 74, 76.2, 100

- Belt width (inches): 0.19, 0.25, 0.31, 0.37, 0.5, 0.75, 1, 1.5, 2

- Number of teeth: 10 to 72

Description/Basics

The toothed pulley for mechanical engineering is intended for the transmission of force and torque. Timing pulleys enable a gear ratio of speeds through belt pulleys of different sizes. Timing pulleys are more efficient, durable and significantly more maintenance-friendly compared to chain transmissions.

How much torque and load a timing pulley can transmit depends on the width of the belt. The width of the belt must be calculated. It is recommended to ensure the belt is correctly tensioned. MISUMI already offers the suitable idler pulley and return rollers with integrated ball bearings. For design and design help follow this link.

Different profile shapes of the toothed belts and belt pulleys are responsible for the transmission of power. Depending on the positioning accuracy, the applied torque and the conveying weight, MISUMI offers the fitting pulley. Toothed belt drives are generally used in the industry in three areas:
Positioning: Timing pulleys is often used in 3D printers. A toothed pulley with a semi-circular profile (e.g., GT) is often used for the required position accuracy of a 3D printers. The round shape offers the benefit of little play when the direction changes.
Drive: toothed pulleys are also used for high torque. In most cases, a timing pulley with a rounded trapezoidal profile (e.g., S8M) is used. These are particularly well suited for the transmission of high forces, which occur in drives of various applications in order to drive mechanical components.
Conveying: toothed pulleys can also be used for transporting loads. A straight trapezoidal profile is often used for this purpose (e.g., AT). This toothed pulley shape offers a large surface for loading and transmitting of loads.

Which toothed pulley or timing pulley is the right one for your application depends on the respective task of the toothed belt drive. Different toothed disc profiles have proven themselves for each type of application.

Various bore hole shapes and fastening variants are available for shaft mounting. These allow fastening via set screws, keyways and by means of Mecha locks. Fastening via a clamping sleeve has the further advantage that it allows adjusting the alignment continuously. The MISUMI product assortment has these ready-to-install.

Application Examples - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Application example: idler pulley - idler pully toothed with chain tensioner - toothed pulley with chain tensioner

Application example: idler pulley
(1) Idler pulleys, (2) chain tensioner

Application example: return roller - return roller with cantilever pin - synchronous pulley with on-board disc - toothed pulley with on-board disc

Application example: deflection roller
S (1) Toothed pulleys with crimp disc, (2) nut, (3) washer, (4) cantilever shaft, (5) retaining ring

Application example: synchronous pulleys - toothed pulleys with toothed belts - toothed pulley with screw-on clamp

Application example: timing pulleys
(1) Flat head screw, (2) Timing pulley, (3) Timing belt, (4) Screw-on terminal

Application example: toothed belt drives - toothed pulleys with crimp disc - idler pulley with crimp disc - tensioning of the toothed belt

Application example: of toothed belt drives
(1) Toothed belt, (2) driven toothed pulley with crimp disc, (3) idler pulley with crimp disc, (4) driving toothed pulley with crimp disc

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

Part Number:

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Data to be displayed: 30; 45; 60

Part Number
AHTF18T5100
AHTF20T5100
AHTF20T5150
AHTF22T5100
AHTF24T5100
AHTF25T5100
AHTF28T5100
AHTF28T5150
AHTF30T5100
AHTF30T5150
AHTFW18-T5100-6
AHTFW18-T5150-6
AHTFW18-T5200-8
AHTFW18-T5250-8
AHTFW20-T5100-8
AHTFW20-T5150-8
AHTFW20-T5200-8
AHTFW20-T5250-8
AHTFW22-T5150-10
AHTFW22-T5200-10
AHTFW22-T5250-10
AHTFW24-T5100-10
AHTFW24-T5150-10
AHTFW24-T5200-10
AHTFW24-T5250-10
AHTFW25-T5150-10
AHTFW25-T5200-10
AHTFW25-T5250-10
AHTFW28-T5150-10
AHTFW28-T5200-10
AHTFW28-T5250-10
AHTFW30-T5150-12
AHTFW30-T5200-12
AHTFW30-T5250-12

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Belt Type	Belt Width (mm)	[T] Number of Teeth	Surface Treatment	[d] Diameter (Shaft Bore) (mm)
36.43 €	1	Available	6 Days	10	T5	10	18	Clear Anodize	-
36.06 €	1	Available	6 Days	10	T5	10	20	Clear Anodize	-
40.11 €	1	Available	6 Days	10	T5	15	20	Clear Anodize	-
42.52 €	1	Available	6 Days	10	T5	10	22	Clear Anodize	-
45.30 €	1	Available	6 Days	10	T5	10	24	Clear Anodize	-
47.06 €	1	Available	6 Days	10	T5	10	25	Clear Anodize	-
45.67 €	1	Available	10 Days	10	T5	10	28	Clear Anodize	-
46.95 €	1	Available	10 Days	10	T5	15	28	Clear Anodize	-
48.34 €	1	Available	10 Days	10	T5	10	30	Clear Anodize	-
61.37 € 18.41 €	1	Available	Same day Stock	10	T5	15	30	Clear Anodize	-
38.72 €	1	Available	6 Days	10	T5	10	18	Clear Anodize	6
41.88 €	1	Available	6 Days	10	T5	15	18	Clear Anodize	6
50.10 €	1	Available	6 Days	10	T5	20	18	Clear Anodize	8
55.04 €	1	Available	6 Days	10	T5	25	18	Clear Anodize	8
42.00 €	1	Available	6 Days	10	T5	10	20	Clear Anodize	8
45.04 €	1	Available	6 Days	10	T5	15	20	Clear Anodize	8
53.26 €	1	Available	6 Days	10	T5	20	20	Clear Anodize	8
58.97 €	1	Available	6 Days	10	T5	25	20	Clear Anodize	8
52.14 €	1	Available	6 Days	10	T5	15	22	Clear Anodize	10
61.87 €	1	Available	6 Days	10	T5	20	22	Clear Anodize	10
64.65 €	1	Available	6 Days	10	T5	25	22	Clear Anodize	10
53.40 €	1	Available	6 Days	10	T5	10	24	Clear Anodize	10
57.19 €	1	Available	6 Days	10	T5	15	24	Clear Anodize	10
67.31 €	1	Available	6 Days	10	T5	20	24	Clear Anodize	10
71.23 €	1	Available	7 Days	10	T5	25	24	Clear Anodize	10
58.45 €	1	Available	6 Days	10	T5	15	25	Clear Anodize	10
68.70 €	1	Available	6 Days	10	T5	20	25	Clear Anodize	10
72.88 €	1	Available	6 Days	10	T5	25	25	Clear Anodize	10
59.21 €	1	Available	10 Days	10	T5	15	28	Clear Anodize	10
69.71 €	1	Available	10 Days	10	T5	20	28	Clear Anodize	10
76.67 €	1	Available	10 Days	10	T5	25	28	Clear Anodize	10
59.60 €	1	Available	10 Days	10	T5	15	30	Clear Anodize	12
71.36 €	1	Available	10 Days	10	T5	20	30	Clear Anodize	12
78.32 €	1	Available	10 Days	10	T5	25	30	Clear Anodize	12

Back to the Category Toothed Pulleys/Timing Pulleys/Idler Pulleys

Technical Drawing - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Open the technical drawing in the new window

Specification Tables - Toothed Pulleys/Timing Pulleys/Idler Pulleys

■T5 (Center Bearing)

Part Number			Shaft Dia. d	P.D.	O.D.	F	E	A	W	S	Bearing Dimensions			Unit Price
Type	Number of Teeth	Applicable Belt	Shaft Dia. d	P.D.	O.D.	F	E	A	W	S	No.	D	B	Unit Price
AHTF	18	T5100	8	28.65	27.80	33	22	11	16	5	698ZZx1	19	6
	20	T5100	8	31.83	31.00	36	24	11	16	5	698ZZx1	19	6
	20	T5150	8	31.83	31.00	36	24	17	22	5	698ZZx2	19	6
	22	T5100	10	35.01	34.25	40	27	11	16	5	6900ZZx1	22	6
	24	T5100	10	38.20	37.40	45	30	11	16	4	6000ZZx1	26	8
	25	T5100	10	39.79	39.00	45	30	11	16	4	6000ZZx1	26	8
	28	T5100	10	44.56	43.75	48	35	11	16	3.5	6200ZZx1	30	9
	28	T5150	10	44.56	43.75	48	35	17	22	6.5	6200ZZx1	30	9
	30	T5100	12	47.75	46.95	52	36	11	16	3	6201ZZx1	32	10
	30	T5150	12	47.75	46.95	52	36	17	22	6	6201ZZx1	32	10

■T5 (Both Sides Bearing)

Part Number			Shaft Dia. d	P.D.	O.D.	F	E	A	W	Dh	Bearing Dimensions			Unit Price
Type	Number of Teeth	Applicable Belt									No.	D	B
AHTFW	18	T5100	6	28.65	27.80	33	22	11	16	13	696ZZx2	15	5
		T5150						17	22
		T5200	8					22	27	16.5	698ZZx2	19	6
		T5250						27	32
	20	T5100	8	31.83	31.00	36	24	11	16	16.5	698ZZx2	19	6
		T5150						17	22
		T5200						22	27
		T5250						27	32
	22	T5150	10	35.01	34.25	40	27	17	22	19.5	6900ZZx2	22	6
		T5200						22	27
		T5250						27	32
	24	T5100	10	38.20	37.40	45	30	11	16	19.5	6900ZZx2	22	6
		T5150						17	22
		T5200						22	27	23	6000ZZx2	26	8
		T5250						27	32
	25	T5150	10	39.79	39.00	45	30	17	22	23	6000ZZx2	26	8
		T5200						22	27
		T5250						27	32
	28	T5150	10	44.56	43.75	48	35	17	22	25	6200ZZx2	30	9
		T5200						22	27
		T5250						27	32
	30	T5150	12	47.75	46.95	52	36	17	22	25	6001ZZx2	28	8
		T5200						22	27	27	6201ZZx2	32	10
		T5250						27	32

■T10 (Center Bearing)

Part Number			Shaft Dia. d	P.D.	O.D.	F	E	A	W	S	Bearing Dimensions			Unit Price
Type	Number of Teeth	Applicable Belt	Shaft Dia. d	P.D.	O.D.	F	E	A	W	S	No.	D	B	Unit Price
AHTF	16	T10150	12	50.93	49.05	58	40	17	22	6	6201ZZx1	32	10
	16	T10250	15	50.93	49.05	58	40	27	32	5	6202ZZx2	35	11
	18	T10150	12	57.30	55.45	61	45	17	22	6	6201ZZx1	32	10
	20	T10150	12	63.66	61.80	67	50	17	22	6	6201ZZx1	32	10
	20	T10250	15	63.66	61.80	67	50	27	32	5	6202ZZx2	35	11
	22	T10150	15	70.03	68.15	80	60	17	22	5.5	6202ZZx1	35	11
	24	T10150	15	76.39	74.55	87	67	17	22	5.5	6202ZZx1	35	11
	26	T10150	15	82.76	80.90	87	67	17	22	5.5	6202ZZx1	35	11

■T10 (Both Sides Bearing)

Part Number			Shaft Dia. d	P.D.	O.D.	F	E	A	W	Dh	Bearing Dimensions			Unit Price
Type	Number of Teeth	Applicable Belt									No.	D	B
AHTFW	16	T10150	12	50.93	49.05	58	40	17	22	25	6001ZZx2	28	8
		T10200						22	27
		T10250						27	32
		T10300						32	37	27	6201ZZx2	32	10
		T10150	15					17	22	29	6002ZZx2	32	9
		T10200						22	27
		T10250						27	32
		T10300						32	37	30	6202ZZx2	35	11
		T10400						43	48
		T10500						53	58
	18	T10200	15	57.30	55.45	61	45	22	27	29	6002ZZx2	32	9
		T10250						27	32	30	6202ZZx2	35	11
		T10300						32	37
	20	T10200	15	63.66	61.80	67	50	22	27	29	6002ZZx2	32	9
		T10250						27	32	30	6202ZZx2	35	11
		T10300						32	37
		T10400						43	48
		T10500						53	58
	22	T10200	20	70.03	68.15	80	60	22	27	37	6004ZZx2	42	12
		T10250						27	32
		T10300						32	37	41	6204ZZx2	47	14
	24	T10200	20	76.39	74.55	87	67	22	27	37	6004ZZx2	42	12
		T10250						27	32	41	6204ZZx2	47	14
		T10300						32	37
	26	T10200	20	82.76	80.90	87	67	22	27	37	6004ZZx2	42	12
		T10250						27	32	41	6204ZZx2	47	14
		T10300						32	37

■AT5 (Center Bearing)

Part Number			Shaft Dia. d	P.D.	O.D.	F	E	A	W	S	Bearing Dimensions			Unit Price
Type	Number of Teeth	Applicable Belt									No.	D	B
AHTF	20	AT5100	8	31.83	30.60	36	24	11.6	16.5	5.25	698ZZx1	19	6
		AT5150						16.6	21.5	4.75	698ZZx2
	28	AT5100	10	44.56	43.35	48	35	11.6	16.5	3.75	6200ZZx1	30	9
		AT5150						16.6	21.5	6.25
	30	AT5100	12	47.75	46.55	55	40	11.6	16.5	3.25	6201ZZx1	32	10
		AT5150						16.6	21.5	5.75

■AT5 (Both Sides Bearing)

Part Number			Shaft Dia. d	P.D.	O.D.	F	E	A	W	Dh	Bearing Dimensions			Unit Price
Type	Number of Teeth	Applicable Belt									No.	D	B	AHTFW	KHTFW
AHTFW KHTFW	18	AT5100	6	28.65	27.40	33	22	11.6	16.5	13	696ZZx2	15	5
	20	AT5100	8	31.83	30.60	36	24	11.6	16.5	16.5	698ZZx2	19	6
		AT5150						16.6	21.5
	24	AT5100	10	38.20	37.00	45	30	11.6	16.5	19.5	6900ZZx2	22	6
		AT5150						16.6	21.5
	25	AT5150	10	39.79	38.60	45	30	16.6	21.5	23	6000ZZx2	26	8
	30	AT5150	12	47.75	46.55	55	40	16.6	21.5	27	6201ZZx2	32	10

■AT10 (Center Bearing)

Part Number			Shaft Dia. d	P.D.	O.D.	F	E	A	W	S	Bearing Dimensions			Unit Price
Type	Number of Teeth	Applicable Belt	Shaft Dia. d	P.D.	O.D.	F	E	A	W	S	No.	D	B	Unit Price
AHTF	16	AT10150	12	50.93	49.05	58	40	16.5	22.5	6.25	6201ZZx1	32	10
	16	AT10250	15	50.93	49.05	58	40	26.5	32.5	5.25	6202ZZx2	35	11
	20	AT10150	12	63.66	61.80	67	50	16.5	22.5	6.25	6201ZZx1	32	10
	20	AT10250	15	63.66	61.80	67	50	26.5	32.5	5.25	6202ZZx2	35	11
	22	AT10150	15	70.03	68.15	80	60	16.5	22.5	5.75	6202ZZx1	35	11

■AT10 (Both Sides Bearing)

Part Number			Shaft Dia. d	P.D.	O.D.	F	E	A	W	Dh	Bearing Dimensions			Unit Price
Type	Number of Teeth	Applicable Belt									No.	D	B
AHTFW	16	AT10150	12	50.93	49.05	58	40	16.5	22.5	25	6001ZZx2	28	8
		AT10200						21.5	27.5
		AT10250						26.5	32.5
		AT10150	15					16.5	22.5	29	6002ZZx2	32	9
		AT10200						21.5	27.5
		AT10250						26.5	32.5
	18	AT10250	15	57.30	55.45	61	45	26.5	32.5	30	6202ZZx2	35	11
	20	AT10200	15	63.66	61.80	67	50	21.5	27.5	29	6002ZZx2	32	9
		AT10250						26.5	32.5	30	6202ZZx2	35	11
	26	AT10250	20	82.76	80.90	87	67	26.5	32.5	41	6204ZZx2	47	14

Alterations - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Here to the Option Overview PDF

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Basic information

Type	Idlers with Teeth	Material	2000 Series Aluminum Alloy (Duralumin)	Timing Pulleys/Idlers	Idlers

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- AHTFW□□-T10
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Optional Attributes

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

Frequently Asked Questions (FAQ)

Question:
Do you have any belt pulleys without a hole?: Answer:
The MISUMI toothed pulleys always have a pilot bore. It is expanded depending on your configuration. It provides the advantage that the belt pulleys are already provided with a suitable shaft bore ready for installation. Therefore, it does not require time-consuming post-processing.
Question:
Do you have timing pulleys made of aluminum?: Answer:
The MISUMI online shop also offers timing pulleys or toothed pulleys in aluminum. Furthermore, we are also offering belt pulleys in steel and stainless steel. The return rollers and idler pulleys for the timing belts are also available in plastic.
Question:
Is a transmission with toothed belt pulleys possible?: Answer:
With toothed pulleys, a gear ratio is possible in a drive. The gear ratio is established based on the number of teeth on the belt pulleys. It should be ensured that the minimum number of teeth of the timing pulley disc is not undercut.
Question:
Which type of the toothed belt pulley can be clamped during assembly?: Answer:
There are a number of ways to install timing pulleys on a shaft. For applications that are not exposed to high torque, such as conveyors, it can be sufficient to fasten a timing pulley using clamping threaded pins. For this purpose, the shaft should have a flat surface.
For higher loads, a toothed pulley with a keyway can also be used.
A further variant is the fastening of a timing pulley via a conical chip sleeve. Depending on the type of Mecha lock, the timing pulley requires lateral internal threads, which can be added through additional options in the MISUMI online shop.
A timing pulley with a bore hole can also be combined with a Mech lock. MISUMI is offering this combination as a set.
Question:
Where do you position the tension roller?: Answer:
If an idler pulley should be utilised, it should be positioned on the sag side. This means that the idler pulley is attached to the side not subjected to pull.
Ideally, a toothed idler pulley is mounted on the inside of the toothed belt. The tensioning roller should always be larger than the smallest toothed idler pulley of the belt drive system.
If an idler pulley must tension the toothed belt from the outside, then a non-toothed (flat) idler pulley should be used. Cantilever pins, which MISUMI offers in various geometric versions, are suitable for fastening.
Question:
Which parallel key can be used for the toothed pulleys?: Answer:
The parallel key size is based on the shaft diameter. In this case, it is recommended using the MISUMI parallel keys, as they fit better when MISUMI toothed pulleys are used. See Overview available as PDF for keyway tolerances.
Question:
Is a timing pulley with a round profile better?: Answer:
Timing pulleys and round-profile timing belts are not recommended for every application. For example, the round profile shape is well suited for applications that require high positioning accuracy. Therefore, they are often used in 3D printers and scanners. Compared to other profile shapes, the round profile shape has a higher wear resistance. Another advantage of the round profile shape is the minimized play in the return (reverse play).
Question:
Which belt pulley is suitable for Gates toothed belts?: Answer:
The GT and EV timing pulleys are suitable for Gates’ toothed belts. However, these require you put attention to the slope (distance of the teeth) of the toothed belt. It must be checked whether these correspond to the selected toothed pulley.
Question:
Are the curtain discs necessary for the toothed pulleys?: Answer:
It is recommended using the smaller belt pulleys particularly with curb disc. The curb disk ensures that the toothed belt does not migrate down from the toothed belt pulley. Even with the smallest misalignment of a pulley, there may be a risk that the toothed belt will move and jump during operation.
Question:
How is the gearing of the toothed pulleys manufactured?: Answer:
The gear teeth of the MISUMI toothed belt pulley are mainly pushed. This ensures high manufacturing accuracy. As a result, the teeth fit precisely into the toothed belt profile of the timing belts and ensure optimal power and torque transmission.