Idlers S3M

Brand :

MISUMI

Caution

Product Description

This is an economy item, The price is cheaper than the MISUMI standard product.

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 of timing pulleys, timing idlers and timing belts.

Dimensional Drawing

MISUMI Flanged Timing Idler S2M·S3M Type Dimension Diagram

Bearing is pressed fit.

Bearing accuracy JIS B1514 Class 0 / GB T 307-94 P0 (before press-fitting).

MISUMI does not guarantee the bearing brand.

Material Specifications

Type		Material			Surface Treatment
Center Bearing Type	Both Sides Bearing Type	Body	Flange	Bearing
E-AHTF	E-AHTFW	Aluminum	Aluminum	Steel	Clear Anodized
-	E-KHTFW				Hard Anodized*
E-BHTF	E-BHTFW	General structural steel or carbon steel	SPCC		Black Oxide
E-MHTF	E-MHTFW				Electroless Nickel Plating
E-SHTF	-	Austenitic Stainless Steel		Austenitic Stainless Steel	-

*The surface hardness of hard anodized treatment is 300HV~.

If rust prevention is required, please give priority to products made of aluminum alloy, austenitic stainless steel, or with electroless nickel plating surface treatment.
For details, please click

Anti-rust performance and maintenance of metal materials and surface treatment

Specification Table

■ Size Specification Table S3M Type (Center Bearing Type)

Part Number			Shaft Diameter d	P.D.	O.D.	F	E	A	W	S	Bearing size
Type	Number of Teeth	Applicable Belt	Shaft Diameter d	P.D.	O.D.	F	E	A	W	S	No.	D	B
E-AHTF E-BHTF E-MHTF	20	S3M060*	5	19.10	18.34	22	14	7	11	3	685ZZ × 1	(11)	5
	20	S3M100*	5	19.10	18.34	22	14	11	15	2.5	685ZZ × 2	(11)	5
	24	S3M060	5	22.92	22.16	25	16	7	11	3.5	695ZZ × 1	13	4
	24	S3M100	5	22.92	22.16	25	16	11	15	3.5	695ZZ × 2	13	4
	25	S3M060	5	23.87	23.11	28	18	7	11	3.5	695ZZ × 1	13	4
	26	S3M060	6	24.83	24.07	28	18	7	11	3	696ZZ × 1	15	5
	28	S3M060	6	26.74	25.98	30	20	7	11	3	696ZZ × 1	15	5
	30	S3M060	6	28.65	27.89	32	23	7	11	3	696ZZ × 1	15	5
	30	S3M100	6	28.65	27.89	32	23	11	15	4.5	626ZZ × 1	19	6
	32	S3M060	8	30.56	29.80	35	25	7	11	2.5	698ZZ × 1	19	6
	32	S3M100	8	30.56	29.80	35	25	11	15	4.5	698ZZ × 1	19	6
	36	S3M060	8	34.38	33.62	40	28	7	11	2.5	698ZZ × 1	19	6
	40	S3M060	10	38.20	37.44	44	32	7	11	2.5	6900ZZ × 1	22	6
	44	S3M060*	10	42.02	41.25	48	36	7	11	2.5	6900ZZ × 1	22	6
	48	S3M060*	10	45.84	45.07	50	38	7	11	2.5	6900ZZ × 1	22	6
	50	S3M060	10	47.75	46.98	52	40	7	11	2.5	6900ZZ × 1	22	6
	60	S3M060	10	57.30	56.53	61	46	7	11	2.5	6900ZZ × 1	22	6
E-SHTF	24	S3M060	5	22.92	22.16	25	16	7	11	3.5	695ZZ × 1	13	4
	24	S3M100	5	22.92	22.16	25	16	11	15	3.5	695ZZ × 2	13	4
	30	S3M060	6	28.65	27.89	32	23	7	11	3	696ZZ × 1	15	5
	30	S3M100	6	28.65	27.89	32	23	11	15	4.5	626ZZ × 1	19	6
	32	S3M060	8	30.56	29.80	35	25	7	11	2.5	698ZZ × 1	19	6
	32	S3M100	8	30.56	29.80	35	25	11	15	4.5	698ZZ × 1	19	6

The opening on the ring side is ⌀12.

All specifications marked with * are only applicable to E-AHTF.

■ Size Specification Table S3M Type (Double-Sided Bearing Type)

Part Number			Shaft Diameter d	P.D.	O.D.	F	E	A	W	Dh	Bearing size
Type	Number of Teeth	Applicable Belt									No.	D	B
E-AHTFW E-KHTFW E-BHTFW E-MHTFW	20	S3M060*	3	19.10	18.34	22	14	7	11	5	673ZZ × 2	6	2.5
		S3M100*	4					11	15	6	674ZZ × 2	7
		S3M150*	5					17	21	9	685ZZ × 2	11	5
	24	S3M060	5	22.92	22.16	25	16	7	11	11	695ZZ × 2	13	4
		S3M100						11	15
		S3M150*						17	21
	25	S3M100	6	23.87	23.11	28	18	11	15	13	696ZZ × 2	15	5
		S3M150*						17	21
	26	S3M100	6	24.83	24.07	28	18	11	15	13	696ZZ × 2	15	5
		S3M150*						17	21
	28	S3M100	6	26.74	25.98	30	20	11	15	13	696ZZ × 2	15	5
		S3M150*						17	21
	30	S3M100	6	28.65	27.89	32	23	11	15	13	696ZZ × 2	15	5
		S3M150*						17	21
	32	S3M100	8	30.56	29.80	35	25	11	15	16.5	698ZZ × 2	19	6
		S3M150*						17	21
	36	S3M100	10	34.38	33.62	40	28	11	15	19.5	6900ZZ × 2	22	6
		S3M150*						17	21
	40	S3M100	10	38.20	37.44	44	32	11	15	19.5	6900ZZ × 2	22	6
		S3M150*						17	21
	44	S3M100*	10	42.02	41.25	48	36	11	15	19.5	6900ZZ × 2	22	6
		S3M150*						17	21
	48	S3M100*	10	45.84	45.07	50	38	11	15	19.5	6900ZZ × 2	22	6
		S3M150*						17	21
	50	S3M100	10	47.75	46.98	52	40	11	15	19.5	6900ZZ × 2	22	6
		S3M150*						17	21
	60	S3M100	10	57.30	56.53	61	46	11	15	19.5	6900ZZ × 2	22	6
		S3M150*	12					17	21	25	6001ZZ × 2	28	8

All specifications marked with * are compatible with E-AHTFW and E-KHTFW.

Product Features

Feature 1: S-type timing belt idler, suitable for high torque transmission design.
Feature 2: S type timing belt idler pulley offers high transmission accuracy and efficiency, making it suitable for high-precision conveying designs.
Feature 3: S-type timing belt idler pulleys can be designed for use in mechanisms with longer shaft distances and are suitable for most types of equipment.
Feature 4: MISUMI timing belt idlers comply with industry standards, ensuring stable procurement and easy equipment maintenance.
Feature 5: MISUMI timing belt idlers are available in a variety of materials to suit different designs and usage environments.
Feature 6: MISUMI timing belt idlers are manufactured with excellent craftsmanship and attention to detail, giving customers greater confidence in their purchase.

Usage Method

Usage Method Example Drawing	Usage Method of Timing Belt Idler and Timing Belt
	(1) For belt tensioning Adjust the tension on the inside of the timing belt using an idler pulley
	②Linear driving Reciprocating motion is carried out through the self-end timing toothed belt.

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

S-type timing belt idler, suitable for MISUMI's Standard S-type timing belt and Economy S-type timing belt.

Precautions

(1) If rust prevention is required, please give priority to products made of aluminum alloy, austenitic stainless steel, or with electroless nickel plating surface treatment.
Please click

Rust Prevention Performance and Maintenance of Metal Materials and Their Surface Treatments
(2) Starting from 2014, flanges of S14M specification are not riveted and will be shipped separately together with the order.

Example of Use

Example drawing of a belt tensioning device designed using MISUMI timing idler pulley

■Organization Name
Belt Tensioner (Manual)

■ Mechanism Function
1. Moves the roller on the adjustment side to tighten and secure it while the conveyor belt is open.
2. When using multiple drives, increase the engagement rate by setting the roller to the center position.

■ Function of the Timing Belt Idler

1.	Fix the belt assembly distance with a timing belt idler
	At the same time, the polyurethane roller assists in tensioning the belt

Related Industries

Semiconductor	Automotive	Smart phone

Medical	Electronic & Electrical Appliances	Robotics

High Torque Timing Pulleys S2M Type	Long toothed timing belt Urethane Number of teeth specified joint processing	High-Frequency Quenched Spur Gear, High Hardness Shaft Hole Specified Type

Typical model:	Typical model:	Typical model: