Timing Pulleys XL

Brand :

MISUMI

Caution

Product Description

Timing Pulleys XL
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.) : 6.4, 7.9, 9.5 and 12.7
● Belt Width Used (Inch.) : 0.25, 0.31, 0.37 and 0.5
● Applicable with Belt Type : XL
● Number of Teeth Minimum/Maximum : 10 to 50
● Shaft Bore Diameter Minimum/Maximum (mm.) : 5 to 16
● 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.

Product Overview

As a mechanism for transmitting the rotational power generated by the motor, timing pulleys, timing belt idlers and timing belts are usually widely used for design.
The transmission and transmission function is achieved through the engagement between timing pulleys, timing belt idlers and timing belt teeth.

Dimensional drawing

Keyway Size	Pulley shape
	A shape	B shape

The tooth groove size will vary slightly due to the number of teeth (Tooth pitch: 5.08mm)
Shaft Bore Specs
H Round hole	P Round hole + Tap	N New JIS Keyway + Tap

	Type A with less than 15 teeth and a nominal width of 025 is not applicable. The threaded hole of the pulley should be around 120° away from the top of the tooth.	Detailed dimensions of keyway The position of keyway and tooth is not fixed Type A is not applicable for the number of teeth below 15 and the nominal width 025. The threaded hole of the pulley should avoid the tooth top near 120°.

Material Pulley: Aluminum Alloy Flange: Aluminum Alloy

Surface Treatment: Clear Anodize

Threaded Hole Size Table
(Shaft Hole Specifications: P·N)

dH7 Shaft Bore ID	2-M （Coarse Thread）
4	M3×3
5～12	M4×3
13～17	M5×4
18～30	M6×5

Specification Table

Part Number			Pulley Shape	Shaft Bore Spec.P Hole Dia.d	P.D.	O.D.	D	F	E
Type	Number of Teeth	Belt Type
C－ATP	10	XL025	B	5	16.17	15.66	10	24	12
		XL037		6
	12	XL025		5	19.4	18.9	12	25	15
		XL037		6
	14	XL025		5·6.35·8	22.64	22.13	15	28	18
		XL037		6.35·8
	15	XL031		10	24.26	23.75	17	32	20
		XL037		8
		XL050		8
	16	XL037		8	25.87	25.36	17	32	20
	18	XL025		8	29.11	28.6	21	36	24
		XL037		6.35·8·10
	20			8	32.34	31.83	24	40	27
		XL031		8
	21			12	33.96	33.45	24	40	27
		XL050		8
	22	XL037		8·10	35.57	35.07	26	45	30
	30			8	48.51	48	35	55	40
	36			14	58.21	57.7	40	67	50

Part Number			Pulley Shape	Shaft Bore Spec.N Hole Dia.d	P.D.	O.D.	D	F	E
Type	Number of Teeth	Belt Type	Pulley Shape	Shaft Bore Spec.N Hole Dia.d	P.D.	O.D.	D	F	E
C－ATP	15	XL031	B	NK10	24.26	23.75	17	32	20
	16	XL025		8	25.87	25.36	17	32	20
	18	XL037		12	29.11	28.6	21	36	24
	20			8·10·11·14·15	32.34	31.83	24	40	27
	22			8	35.57	35.07	26	45	30
	24	XL050		10	38.81	38.3	26	45	30
	40	XL037		16	64.68	64.17	40	74	58

详细规格见官网

Part Number			Pulley Shape	Shaft Bore Spec.P Hole Dia.d	P.D.	O.D.	F	E
Type	Number of Teeth	Belt Type
C－ATP	12	XL037	A	4·5·8	19.4	18.9	25	15
		XL031		5·6·8
		XL050		5
	14	XL031		8	22.64	22.13	28	18
		XL037		5·8·10
		XL050		8
	15	XL037		8·11	24.26	23.75	32	20
		XL031		6·8
	16	XL025		5·6·8·10	25.87	25.36	32	20
		XL031		8·10
		XL037		5·6.35·8·10·11·12·13
		XL050		5·8·10
	18	XL025		6·8	29.11	28.6	36	24
		XL031		8
		XL050		8·14
		XL037		6·8·10·12
	19			6·8·10	30.72	30.22	36	24
		XL050		10
	20	XL037		8·10·14	32.34	31.83	40	27
		XL050		8·10
	21	XL037		8	33.96	33.45	40	27
	22			8	35.57	35.07	45	30
	24			8·10·14	38.81	38.3	45	30
		XL050		10
	25	XL037		15	40.43	39.92	48	35
		XL050		10·12
	26	XL037		10·22	42.01	41.53	48	35
	28	XL025		8	45.28	44.77	55	40
	30	XL037		10·20	48.51	48	55	40

Part Number			Pulley Shape	Shaft Bore Spec.H Hole Dia.d	P.D.	O.D.	F	E
Type	Number of Teeth	Belt Type	Pulley Shape	Shaft Bore Spec.H Hole Dia.d	P.D.	O.D.	F	E
C－ATP	14	XL025	A	8·11	22.64	22.13	28	18
	16	XL037		8	25.87	25.36	32	20
	18	XL031		14	29.11	28.6	36	24
	25	XL050		8	40.43	39.92	48	35
	46	XL050		16	74.38	73.87	80	60

Part Number			Pulley Shape	Shaft Bore Spec.N Hole Dia.d	P.D.	O.D.	F	E
Type	Number of Teeth	Belt Type
C－ATP	14	XL037	A	8	22.64	22.13	28	18
		XL050		8
		XL031		8
	15	XL037		8·NK10	24.26	23.75	32	20
		XL031		10
	16	XL025		8	25.87	25.36	32	20
		XL031		12
		XL050		8·10·12·NK10
		XL037		8·10·12
	18	XL031		8·10·12·14	29.11	28.6	36	24
		XL037		8·10·14·15
		XL025		8
		XL050		8·10·12·14·15
	19			10·12·15·NK10	30.72	30.22	36	24
		XL037		12·15
	20	XL025		8·10	32.34	31.83	40	27
		XL031		10
		XL050		8·10·11·12·14·15·NK10
		XL037		8·10·12·14·16·NK10
	21			12	33.96	33.45	40	27
	22			10·NK10	35.57	35.07	45	30
		XL050		10·15·NK10
	24	XL037		12·14	38.81	38.3	45	30
	25			8	40.43	39.92	48	35
		XL050		10·12·14·15·NK10
	26			20	42.01	41.53	48	35
	30	XL031		12	48.51	48	55	40
		XL050		15
	32	XL037		12	51.74	51.24	61	45
	38	XL050		15	61.45	60.94	67	50
	46	XL037		25	74.38	73.87	80	60
	50			10	80.85	80.34	87	67

Detailed specifications are available on the official website

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

XL timing pulleys are suitable for MISUMI's Standard Timing Belts and Economy Series Timing Belts.

Product Features

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

	Economy timing pulley	Misumi existing products
Use case
Notes on use	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 service life of timing belt
·Misumi's economical timing pulley has been deburred at the threaded hole, which is not easy to wear the timing belt. It is cheap and can also increase the service life of the timing belt.

Belt status after the test of timing pulley with no chamfered threaded mouth:
The belt tooth surface has obvious wear marks left by the threaded hole on the pulley tooth surface
Belt wear photos

【Test conditions】
Belt specification: S5M
Belt width: 150mm
Number of teeth on the drive side pulley: 20
Number of teeth on the driven side pulley: 60
Speed: 3000rpm
Tension (N): 160N
Test time: 24H

※Problem cases of market circulation products

Example of Use

Use Misumi timing pulley to design the workpiece reversal transfer mechanism example

■Mechanism name
Workpiece reversal transfer mechanism

■Mechanism function
Rotate the workpiece on the conveyor belt 90 degrees and transfer it to the next process.
At this time, the clamping mechanism rotates 180 degrees, and the workpiece direction is not changed relative to the conveying direction during transfer.

■Function of timing pulleys
Through the transmission of timing pulleys and timing belts, the workpiece placement direction can be changed while transferring the workpiece. (Applicable to S specification and GT specification timing pulleys)

For details, please click Workpiece reversal transfer mechanism

Related industries

Semiconductor	Car	Smartphone

Medical	Electronic and electrical appliances	Robot

Precautions

There may be no surface treatment in the shaft hole.

The positions of keyway and tooth are not fixed.

Idler for flat belts Width (T) 6～32ｍｍ	Flat belt for general use	High torque timing pulley S2M type

Representative model: HBG15-6	Representative model: HBLT350-4.23	Representative model: HTPA48S2M040-B-N10
Advantages: short delivery time, multiple varieties	Advantages: free size designation	Advantages: short delivery time, multiple varieties