Timing Pulleys Aluminum Clear Anodized S2M

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MISUMI
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.
Driving and transmission are realized through the engagement between the teeth of timing pulleys and timing belts.
Dimensional Drawing
| Standard Tooth Profile | Pulley Shape K | A Shape | Shape B | Tapped Hole Size Table (Shaft Bore Specs.: P·N) | ||
![]() The tooth groove size varies slightly with the number of teeth (Tooth pitch: 2.0 mm) | ![]() | ![]() | ![]() | dH7 Shaft Bore ID | M (Coarse Thread) | Accessory Fixing Screw |
| 3~5 | M3 | M3×3 | ||||
| 6~24 | M4 | M4×3 | ||||
Specifications Overview
| Part Number | Material | Surface Treatment | |||
| Belt Width 4mm | Belt Width 6mm | Belt Width 10mm | Pulley | Flange | |
| A: 5 W: 9 L: 17 | A: 7 W: 11 L: 19 | A: 11 W: 15 L: 23 | |||
| E-HTPA□□S2M040 | E-HTPA□□S2M060 | E-HTPA□□S2M100 | 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 | PulleyShape | Shaft BoreSpecs. | Shaft Bore Specs. (1mm increments) | P.D. | O.D. | D | F | E | |||||||
| H Round Hole | P Round Hole + Threaded Hole | N Keyway Hole + Tap | |||||||||||||
Type | Number of Teeth | Type & Nominal Width | dH7 | ||||||||||||
| Shape A | Shape B・K | Shape A | Shape B・K | Shape A | Shape B | ||||||||||
| (Aluminum Alloy) E-HTPA | 14 | S2M040 *A :5 *W :9 *L :17 S2M060 *A :7 *W :11 *L :19 S2M100 *A :11 *W :15 *L :23 | A K | H P N | 3・4 | 3・4 | - | 3・4 | - | - | 8.91 | 8.4 | 12 | 12 | 6 |
| 15 | 3・4 | 3・4 | 3・4 | 9.55 | 9.04 | ||||||||||
| 16 | 3・4・5 | 3・4・5 | 3・4・5 | 10.19 | 9.68 | 14 | 14 | 8 | |||||||
| 18 | 3・4・5 | 3・4・5 | 3・4・5 | 11.46 | 10.95 | ||||||||||
| 20 | 3~6 | 3~6 | - | 3~6 | - | - | 12.73 | 12.22 | 16 | 16 | 10 | ||||
| 22 | 3~7 | 3~6 | 3~6 | 14.01 | 13.5 | 18 | 18 | 11 | |||||||
| 23 | 3~7 | 3~6 | 3~6 | 14.64 | 14.13 | ||||||||||
| 24 | 3~9 | 3~7 | 3~7 | 15.28 | 14.77 | 20 | 20 | 13 | |||||||
| 25 | 3~9 | 3~7 | 3~7 | 15.92 | 15.41 | ||||||||||
| 26 | 3~10 | 3~8 | 3~8 | 16.55 | 16.04 | 22 | 22 | 14 | |||||||
| 28 | 3~10 | 3~8 | 3~8 | 17.83 | 17.32 | ||||||||||
| 30 | 3~10 | 3~8 | 3~8 | 19.1 | 18.59 | ||||||||||
| 32 | A B | 4~12 | 4~8 | 4~10 | 4・5・6 | 8 | - | 20.37 | 19.86 | 12 | 25 | 16 | |||
| 34 | 4~12 | 4~10 | 4~10 | 4~8 | 8・10・NK10 | 21.65 | 21.14 | 14 | |||||||
| 36 | 4~14 | 4~10 | 4~10 | 4~8 | 8・10・NK10 | 22.92 | 22.41 | 28 | 18 | ||||||
| 40 | 4~16 | 4~14 | 4~12 | 4~10 | 8~12 | 8 | 25.46 | 24.96 | 18 | 30 | 20 | ||||
| 44 | 5~19 | 5~16 | 5~15 | 5~12 | 8~13 | 8~11 | 28.01 | 27.5 | 20 | 32 | 23 | ||||
| 48 | 5~21 | 5~16 | 5~17 | 5~12 | 8~16 | 8~11 | 30.56 | 30.05 | 35 | 25 | |||||
| 50 | 5~21 | 5~16 | 5~17 | 5~12 | 8~16 | 8~11 | 31.83 | 31.32 | 20 | 35 | 25 | ||||
| 60 | 5~28 | 5~26 | 5~24 | 5~22 | 8~22 | 8~17 | 38.2 | 37.69 | 30 | 44 | 32 | ||||
| 72 | 5~34 | 5~30 | 5~30 | 5~26 | 8~26 | 8~20 | 45.84 | 45.33 | 34 | 50 | 38 | ||||
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.
Refer to Keyway Detailed Dimensions.
NK10, if falling within the selection range, can also be selected for Shaft Bore Specs. N.
Shaft Bore Dia. 9 is not available for Shaft Bore Specs. N.Product Features
Feature 1: S specification timing pulleys, suitable for high torque transmission and conveyance design.
Feature 2: S specification timing pulleys provide great transmission accuracy and efficiency, making them suitable for high-precision transmission and conveyance designs.
Feature 3: S specification timing pulleys can be designed for use in mechanisms with larger shaft spacing, 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.
Feature 2: S specification timing pulleys provide great transmission accuracy and efficiency, making them suitable for high-precision transmission and conveyance designs.
Feature 3: S specification timing pulleys can be designed for use in mechanisms with larger shaft spacing, 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.
Usage Method
| Usage Method Example Drawing | Usage Method of Timing Wheel and Timing Belt | Usage Method Example Drawing | Usage Method of Timing Wheel and Timing Belt | |
![]() | ①Driving (The driven wheel is driven by the driving wheel for transmission) | ![]() | ③Conveyance (Plates are conveyed by two toothed timing belts) | |
![]() | ②Linear driving (Reciprocating motion is carried out through the free-end toothed timing belt.) | ![]() | 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 positions of keyway and tooth are not fixed.
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 positions of keyway and tooth are not fixed.
Example of Use
Application Industries
| Semiconductor | Automotive | Smart Phones | ||
![]() | ![]() | ![]() | ||
| Medical | Electronic & Electrical | Robotics | ||
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Related Products
| Idler | High Torque Toothed Timing Belts S3M | Toothed Timing Belts | ||
![]() | ![]() | ![]() | ||
| Representative model: AHTF40S2M100 | Representative model: HTBN300S2M-100 | Representative model: C-HTBN452S2M-100 | ||
| Advantages: short delivery time, multiple types | Advantages: short delivery time, multiple types | Advantages: low price, multiple types |
Related Documents
Technical Data of Toothed Timing Belts and Timing Pulleys
①Data on the selection of timing pulleys and timing toothed belts, tensioning force, etc. (drive).
②Data on the selection of timing pulleys and toothed timing belts, tensioning force, etc. (transmission & conveyance).
③Main causes and countermeasures for the damage, breakage, abnormal noise of toothed timing belts.
④Reference data on the replacement time of toothed timing belts.
⑤Data on dimensional tolerance of timing pulleys.
①Data on the selection of timing pulleys and timing toothed belts, tensioning force, etc. (drive).
②Data on the selection of timing pulleys and toothed timing belts, tensioning force, etc. (transmission & conveyance).
③Main causes and countermeasures for the damage, breakage, abnormal noise of toothed timing belts.
④Reference data on the replacement time of toothed timing belts.
⑤Data on dimensional tolerance of timing pulleys.








Material
Surface Treatment
Pulley
Shaft Bore
Type
Number of Teeth
Type & Nominal Width













