Idlers S2M

Brand :
MISUMI
Caution
Product Description
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 in design.
The transmission and transmission functions are achieved through the engagement between the timing belt pulley, the timing belt idler wheel and the timing belt teeth.
The transmission and transmission functions are achieved through the engagement between the timing belt pulley, the timing belt idler wheel and the timing belt teeth.
Product Features
■Tooth Profile Engagement of MISUMI Economy series Idlers
・The tooth profile of MISUMI's Economy idler gear complies with JIS and ISO standards, and it rotates more smoothly when matched with the standard belt tooth profile.

※Timing belt brand: Mitsuboshi ※Examples of problems occurring in marketed products
■Misumi Economy idler wheel rotation stability
・The tooth profile of MISUMI's Economy idler gear complies with JIS and ISO standards, and it rotates more smoothly when matched with the standard belt tooth profile.

※Timing belt brand: Mitsuboshi ※Examples of problems occurring in marketed products
■Misumi Economy idler wheel rotation stability
| ・Misumi Economy series idler Using MISUMI Economy bearings, More stable quality and less noise | ![]() |
・The tooth surface runout control of the Economy idler gear is consistent with that of the standard product, and the belt drive is more stable
(Unit: mm)
| Pulley tip circle diameter d0 | 5.96≤d0≤203.20 |
| Runout Tolerance (Circumferential Runout) | ≤0.13 |
Dimensional Drawing
Material | Surface Treatment | |
| Body | Flange | |
| Aluminum Alloy | Aluminum Alloy | Clear Anodized |

The bearings are press-fitted.
Bearing accuracy JIS B1514 level 0 (before press-fitting)Specification Overview

■Dimensional specification table (center bearing type)
| Type | Shaft hole diameter d | P.D. | O.D. | F | E | A | W | S | Bearing model and size | ||||
Type | Number of teeth | Applicable Belt | No. | D | B | ||||||||
| C-AHTF | 40 | S2M040 | 5 | 25.46 | 24.96 | 30 | 20 | 5 | 9 | 2.5 | 695ZZ×1 | 13 | 4 |
| S2M060 | 6 | 7 | 11 | 3 | 696ZZ×1 | 15 | 5 | ||||||
| S2M100 | 11 | 15 | 5 | ||||||||||
■Dimensional specification table (both sides bearing type)
| Type | Applicable Belt | Shaft hole diameter d | P.D. | O.D. | F | E | A | W | Dh | Bearing model and size | |||
Type | Number of teeth | No. | D | B | |||||||||
| C-AHTFW | 20 | S2M040 | 3 | 12.73 | 12.22 | 16 | 10 | 5 | 9 | 5 | 673ZZ×2 | 6 | 2.5 |
| S2M060 | 7 | 11 | |||||||||||
| S2M100 | 4 | 11 | 15 | 6 | 674ZZ×2 | 7 | |||||||
| 30 | S2M040 | 3 | 19.01 | 18.59 | 22 | 14 | 5 | 9 | 5 | 673ZZ×2 | 6 | ||
| S2M060 | 7 | 11 | |||||||||||
| S2M100 | 4 | 11 | 15 | 6 | 674ZZ×2 | 7 | |||||||
| 32 | S2M040 | 3 | 20.37 | 19.86 | 25 | 16 | 5 | 9 | 5 | 673ZZ×2 | 6 | ||
| S2M060 | 7 | 11 | |||||||||||
| S2M100 | 4 | 11 | 15 | 9.5 | 694ZZ×2 | 11 | 4 | ||||||
| 36 | S2M040 | 22.92 | 22.41 | 28 | 18 | 5 | 9 | 6 | 674ZZ×2 | 7 | 2.5 | ||
| S2M060 | 7 | 11 | |||||||||||
| S2M100 | 5 | 11 | 15 | 11 | 695ZZ×2 | 13 | 4 | ||||||
| 40 | S2M040 | 4 | 25.46 | 24.96 | 30 | 20 | 5 | 9 | 6 | 674ZZ×2 | 7 | 2.5 | |
| S2M060 | 5 | 7 | 11 | 11 | 695ZZ×2 | 13 | 4 | ||||||
| S2M100 | 6 | 11 | 15 | 13 | 696ZZ×2 | 15 | 5 | ||||||
Usage Method
| Usage case diagram | How to use timing belt idler pulley and timing belt |
![]() | ①For belt tensioning Adjust the tension on the inside of the timing belt via the timing belt idler |
![]() | ②For linear drive Reciprocating motion via self-end timing belt |
| Usage case diagram | How to use timing belt idler pulley and timing belt |
![]() | ③Conveyance Plates are conveyed by two timing toothed belts. |
![]() | ④For traction and transmission The belt clamps the workpiece and transfers it |
S-type timing belt idler, suitable for MISUMIStandard S-type timing beltandEconomy S-type timing belt。Example of Use

■Mechanism name
Belt Tension Device (Manual)
■Mechanism function
1. Move the roller on the adjustment side and tighten it while the conveyor belt is open.
2. For multiple driving applications, the engagement rate can be improved by setting the roller in the middle position.
■Function of the Timing Belt Idler
1. Fix the belt assembly distance with a timing belt idler
At the same time, the auxiliary polyurethane roller tensions the belt.
For details, please clickBelt tension device case
Belt Tension Device (Manual)
■Mechanism function
1. Move the roller on the adjustment side and tighten it while the conveyor belt is open.
2. For multiple driving applications, the engagement rate can be improved by setting the roller in the middle position.
■Function of the Timing Belt Idler
1. Fix the belt assembly distance with a timing belt idler
At the same time, the auxiliary polyurethane roller tensions the belt.
For details, please clickBelt tension device case
Related Industries
| Semiconductor | Automotives | Smartphones | ||
![]() | ![]() | ![]() | ||
| Medical | Electronic & Electrical Appliances | Robotics | ||
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Precautions
①If you have requirements for rust prevention, please give priority to Aluminum Alloy products
Please click
Anti-rust performance and maintenance of metal materials and surface treatments
Please click
Anti-rust performance and maintenance of metal materials and surface treatmentsRelated Documents
Timing Belts, Timing Pulleys, Idler Technical Information
①Selection of timing pulleys and timing belts, tensioning force and other data (transmission)。
②timing pulley and timing belt selection data, tensioning force and other data (transmission)。
③The main causes and countermeasures for damage, breakage, abnormal noise, etc. of the timing belt。
④Reference materials on timing belt replacement intervals.。
⑤Timing pulley, idler dimensional tolerance information。
①Selection of timing pulleys and timing belts, tensioning force and other data (transmission)。
②timing pulley and timing belt selection data, tensioning force and other data (transmission)。
③The main causes and countermeasures for damage, breakage, abnormal noise, etc. of the timing belt。
④Reference materials on timing belt replacement intervals.。
⑤Timing pulley, idler dimensional tolerance information。
Related Products

Material
Surface Treatment
Type
Number of teeth
Applicable Belt
Shaft hole diameter d











