Timing Pulleys Aluminum Clear Anodized XL

Brand :

MISUMI

Caution

Product Description

Product Overview

Usually, timing pulleys 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 of timing pulleys and timing belts.

Dimensional Drawing

Standard Tooth Profile	Pulley Shape A	Shape B
The tooth groove size varies slightly with the number of teeth (Tooth pitch: 5.08 mm)

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

dH7 Shaft Bore ID	M (Coarse Thread)	Accessory Fixing Screw
4	M3	M3×3
5~12	M4	M4×3
13~17	M5	M5×4
18~30	M6	M6×5

Shaft Bore Specs.

H Round Hole	P Round Hole + Threaded Hole	N New JIS Keyway + Threaded Hole

Without threaded holes and set screws.	Not applicable for Shape A with the number of teeth 15 or less and nominal width 025. The stop threaded hole of Shape A pulley is located near 120° to avoid interference with the threads.	When the number of teeth is 15 or less and the nominal width is 025 for Shape A, only the keyway hole is not threaded. For detailed dimensions of keyway, please click Here.

Specifications Overview

Part Number				Material		Surface Treatment
Belt Width 6.4mm (1/4inch)	Belt Width 7.9mm (5/16inch)	Belt Width 9.5mm (3/8inch)	Belt Width 12.7mm (1/2inch)	Pulley	Flange
A: 7.5 W: 12.5 L: 21	A: 9 W: 14 L: 23	A: 11 W: 16 L: 25	A: 14 W: 19 L: 28	Pulley	Flange
E-ATP□□XL025	E-ATP□□XL031	E-ATP□□XL037	E-ATP□□XL050	Aluminum Alloy	Aluminum Alloy	Clear Anodized

The flange is riveted, and set screws are included for shaft bore specs. P or N.

Specification Table

Part Number			Pulley Shape	Shaft Bore Specs.	Shaft Bore Specs. (1mm increments)						P.D.	O.D.	D	F	E
Type	Number of Teeth	Type & Nominal Width			H Round Hole		P Round Hole + Threaded Hole		N Keyway Hole + Tap
					dH7
					Shape A	Shape B	Shape A	Shape B	Shape A	Shape B
(Aluminum Alloy) E-ATP	10	XL025 ＊A ：7.5 ＊W：12.5 ＊L ：21　　 XL031 ＊A ：9 ＊W ：14 ＊L ：23　　 XL037 ＊A ：11 ＊W ：16 ＊L ：25　 XL050 ＊A ：14 ＊W ：19 ＊L ：28	A B	H P N	4~8	4~6	－	4~6	-	-	16.17	15.66	10	24	12
	11				4~8	4~6	－	4~6	-	-	17.79	17.28	10	24	12
	12				4~11	4~8	4~8	4~6	-	-	19.4	18.9	12	25	15
	14				5~14	5~11	5~11	5~8	8	8	22.64	22.13	15	28	18
	15				5~16	5~13	5~12	5~10	8·10·NK10	8·10·NK10	24.26	23.75	17	32	20
	16				5~16	5~13	5~13	5~10	8~13	8·10·NK10	25.87	25.36	17	32	20
	18				6~20	6~17	6~16	5~13	8~15	8~13	29.11	28.6	21	36	24
	19				6~20	6~17	6~16	6~15	8~15	8~13	30.72	30.22	21	36	24
	20				8~23	8~20	8~18	8~16	8~16	8~15	32.34	31.83	24	40	27
	21				8~23	8~20	8~18	8~16	8~18	8~16	33.96	33.45	24	40	27
	22				8~26	8~22	8~22	8~17	8~20	8~16	35.57	35.07	26	45	30
	24				8~26	8~22	8~22	8~17	8~22	8~16	38.81	38.3	26	45	30
	25				8~31	8~26	8~25	8~20	8~22	8~19	40.43	39.92	30	48	35
	26				8~31	8~26	8~25	8~20	8~23	8~20	42.01	41.53	30	48	35
	28				8~36	8~31	8~31	8~25	8~25	8~20	45.28	44.77	35	55	40
	30				10~36	8~31	10~31	8~25	10~30	8~20	48.51	48	35	55	40
	32				10~41	10~36	10~35	10~30	10~32	10~25	51.74	51.24	40	61	45
	34				10~41	10~36	10~35	10~30	10~32	10~25	54.98	54.47		61	45
	36				10~46	10~36	10~35	10~30	10~35	10~25	58.21	57.7		67	50
	38				10~46	10~36	10~35	10~30	10~35	10~25	61.45	60.94		67	50
	40				10~54	10~36	10~35	10~30	10~35	10~25	64.68	64.17	40	74	58
	42				10~54	10~36	10~35	10~30	10~35	10~25	67.91	67.41		74	58
	44				10~56	10~36	10~35	10~30	10~35	10~25	71.15	70.64		80	60
	46				10~56	10~36	10~35	10~30	10~35	10~25	74.38	73.87		80	60
	48				10~63	10~36	10~35	10~30	10~35	10~25	77.62	77.11		87	67
	50				10~63	10~36	10~35	10~30	10~35	10~25	80.85	80.34	40	87	67
	60				10~77	10~36	10~35	10~30	10~35	10~25	97.01	96.51		104	84
	72				10~85	10~36	10~35	10~30	10~35	10~25	116.43	115.92		123	102

Shaft Bore Specs. P cannot be selected for Shape A with the number of teeth 15 or less and nominal width 025. Threads are not included for Shaft Bore Specs. N.

Shaft Bore Dia. 4.5 and 6.35, if falling within the selection range, can be selected for Shaft Bore Specs. H and P.

Specify NK10 when New JIS Keyway Hole + Threaded Hole with shaft bore diameter of 10 and keyway width 4.0mm (height 1.8mm) is requested. For detailed dimensions of keyway, please click

here.

For shaft hole specification N, NK10 can also be selected if it is within the selection range.

Shaft Bore Dia. 9 is not available for Shaft Bore Specs. N.

Product Features

Feature 1: XL specification timing pulleys, suitable for general torque transmission design and high speed conveyance design.
Feature 2: XL specification timing pulleys provide great transmission accuracy and efficiency, making them suitable for high-precision transmission and conveyance designs.
Feature 3: XL specification timing pulleys have a wide range of load and speed ratios, applicable to most mechanisms and equipment.
Feature 4: MISUMI timing pulleys satisfy industrial standards, enabling for a reliable purchase and simple equipment maintenance.
Feature 5: MISUMI timing pulleys are available in various materials and suitable for a wide range of design environments.
Feature 6: MISUMI timing pulleys are made with meticulous attention to detail, allowing customers to make purchases with more confidence.

Features of MISUMI Timing Belts XL timing pulley

①Well processed teeth→High processing accuracy
②Threaded hole deburred→Longer service life of timing belt
③Evenly press-fitted retainer→Firm retainer, not easy to fall off
④Beautiful tooth shape→Precisely engaged belt, with high concentricity

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 free-end toothed timing belt.)

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

Precautions

①For Shaft Bore Specs. P (round hole+threaded hole) or N, the attached set screws are shipped in the same package (may drop in the packaging bag).
②There is no threaded hole for Shaft Bore Specs. H (round hole).
③There may be no surface treatment in the shaft bore.
④For the N keyway hole, the position relation between keyway and tooth is not fixed.

Example of Use

Example drawing of a ball spline lifting & rotating mechanism designed using MISUMI timing pulley timing pulley

Equipment Name:
Ball Spline Lifting & Rotating Mechanism
Purpose:
Rotates the workpiece received from the previous process 90 degrees to lower it and transfers the workpiece to the next process.
Purpose of Timing Pulley:
The transmission of the timing pulley changes the direction of the collet. (Applicable to timing pulleys with specifications MXL, XL, L and H)

For details, please click

here.

Application Industries

Semiconductor	Automotive	Smart Phones

Medical	Electronic & Electrical	Robotics

Idler	Toothed Timing Belts XL	Toothed Timing Belts

Representative model: AATF28XL031	Representative model: TBN128XL031	Representative model: C-TBN178XL031