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Idlers HTD 8M (Part Numbers)
- Volume Discount
MiSUMi Economy
Economy series products, please order more than 2 pcs.
Part Number
Configured Part Number is shown.
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Product Details - CAD Data unavailable
Bearing is pressed fit.
Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)
MISUMI makes no commitment to the bearing brand
Tapped Hole Size Table
(Shaft Bore Specs.: P·N)
Timing Pulley are not provided with fixing screws. You may purchase them separately referring to the recommended fixing screw models.
HTD 8M timing belt idlers, suitable for MISUMI HTD 8M timing belts.
Bearing is pressed fit.
Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)
MISUMI makes no commitment to the bearing brand
Economy HTD 8M Idler Pulley
Belt widthIdler pulleyFactory automation
- Cost-effective aluminum alloy
- Fits multiple belt widths.
- Variety of teeth counts available
- Central or side bearings
- Clear anodized for longevity
MISUMI Standard
Cheaper Price
Product Variety
3D CAD Support
Product of Timing Pulley Overview
Economy series products of Timing Pulley, please order more than 2 pcs
Usually, flat-belt pulleys and flat belts are widely used in mechanisms design for transmitting rotational power generated by motors. Driving and transmission are realized through the friction fit between flat-belt pulleys and flat belts.
Usually, flat-belt pulleys and flat belts are widely used in mechanisms design for transmitting rotational power generated by motors. Driving and transmission are realized through the friction fit between flat-belt pulleys and flat belts.
Product of Timing Pulley Features
■Timing Pulley Tooth Profile Engagement of MISUMI Economy series Idlers
・MISUMI Economy series idlers tooth profiles conform to JIS and ISO standards, matching with the standard belt tooth profile for smoother rotation.
* Problems of generic products of Timing Pulley in the market
■Rotation Stability of MISUMI Economy series Idlers
・MISUMI Economy series idlers tooth profiles conform to JIS and ISO standards, matching with the standard belt tooth profile for smoother rotation.
| 5M Tooth Profile | MISUMI Economy series (Good engagement) | Products circulating on the market * |
| Engagement of Timing Pulley and Timing Belt |  |  |
| Clearance | Small | Large |
| Positioning Accuracy | Height | Low |
■Rotation Stability of MISUMI Economy series Idlers
| ・MISUMI economy series idler uses MISUMI Economy series bearing with stabler quality and lower noise |  |
・The tooth surface runout control of the Economy series idler is consistent with the standard product of Timing Pulley, and the belt drive is smoother.
(Unit: mm)
| Diameter of Pulley Tooth Top Circle d0 | 5.96≤d0≤203.20 |
| Runout Tolerance (Circumferential Runout) | ≤0.13 |
Dimensional of Timing Pulley Drawing
| ●Central Bearing | ●Both Sides Bearing | |
| <Single Bearing> | <Double Bearing> | |
 |  |  |
Bearing is pressed fit.Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)MISUMI makes no commitment to the bearing brandTapped Hole Size Table
(Shaft Bore Specs.: P·N)
| dH7 Shaft Hole ID | 2-M (Coarse Thread) | Single Model of Fixing Screw | Box Model of Fixing Screw |
| 8 to 12 | M4 | MSSU4-3 | BOX-MSSU4-3 |
| 13 to 17 | M5 | MSSU5-4 | BOX-MSSU5-4 |
| 18 to 20 | M6 | MSSU6-5 | BOX-MSSU6-5 |
Timing Pulley are not provided with fixing screws. You may purchase them separately referring to the recommended fixing screw models.Specifications of Timing Pulley Overview
 Material |  Surface Treatment | |
| Timing Pulley | Flange | |
| Aluminum Alloy | Aluminum Alloy | Clear Anodized |
Usage of Timing Pulley Method
| Usage Method Example of Timing Pulley Drawing | Instructions for Use of Timing Belt Idlers and Timing Belt |
 | ①Timing Pulley Driving The driven wheel is driven by the driving wheel for transmission |
 | ②Timing Pulley Linear driving Reciprocating motion is carried out through the self-end timing toothed belt. |
| Usage Method Example of Timing Pulley Drawing | Instructions for Use of Timing Belt Idlers and Timing Belt |
 | ③Timing Pulley Conveyance Plates are conveyed by two timing toothed belts |
 | ④Timing Pulley Traction transmission Workpieces are clamped and transmitted by the belt |
HTD 8M timing belt idlers, suitable for MISUMI HTD 8M timing belts.Example of Timing Pulley Use
■Timing Pulley Mechanism name
Belt tension device (manual)
■Mechanism function
1. Move the roller on the adjustment side, and tighten and fix it when the conveyor belt opens.
2. For multiple driving applications, the engagement rate can be improved by setting the roller in the middle position.
■ Role of the timing belt idler
1. The belt is tensioned by fixing the belt assembly distance with the timing belt idler
and with the assistance of the urethane roller.
For more information, please click Example for Belt Tension Device.
Belt tension device (manual)
■Mechanism function
1. Move the roller on the adjustment side, and tighten and fix it when the conveyor belt opens.
2. For multiple driving applications, the engagement rate can be improved by setting the roller in the middle position.
■ Role of the timing belt idler
1. The belt is tensioned by fixing the belt assembly distance with the timing belt idler
and with the assistance of the urethane roller.
For more information, please click Example for Belt Tension Device.
Related of Timing Pulley Industries
| Semiconductor | Automotive | Smart phone | ||
 |  |  | ||
| Medical | Electronic & Electrical Appliances | Robotics | ||
 |  |  |
Timing Pulley Precautions
Bearing is pressed fit.Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)MISUMI makes no commitment to the bearing brandRelated of Timing Pulley Documents
Technical Data of Timing Toothed Belts, Timing Pulleys and Idlers
①Data on the selection of timing pulleys and timing toothed belts, tensioning force, etc. (drive).
②Data on the selection of timing pulleys and timing toothed belts, tensioning force, etc. (transmission & conveyance).
③Main causes and countermeasures for the damage, breakage, abnormal noise of timing toothed belts.
④Reference data on the replacement time of timing toothed belts.
⑤Data on dimensional tolerance of timing pulleys and timing idlers.
①Data on the selection of timing pulleys and timing toothed belts, tensioning force, etc. (drive).
②Data on the selection of timing pulleys and timing toothed belts, tensioning force, etc. (transmission & conveyance).
③Main causes and countermeasures for the damage, breakage, abnormal noise of timing toothed belts.
④Reference data on the replacement time of timing toothed belts.
⑤Data on dimensional tolerance of timing pulleys and timing idlers.
Related of Timing Pulley Products
| Idlers HTD 3M | Idlers HTD 5M | Timing Belts HTD 8M | ||
 |  |  | ||
| Typical Timing Pulley model C-HTPA14H3M060-K-P5 | Typical Timing Pulley model: C-HTPA14H5M090-A-N8 | Typical Timing Pulley model: C-HTBN1000H8M-200 | ||
| Advantages: short delivery time, multiple types | Advantages: Short delivery time, multiple types | Advantages: short delivery time, multiple types |
| Part Number |
|---|
| C-AHTF30H8M250 |
| C-AHTFW30-H8M250-15 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Belt Width Used (mm) | Number of Teeth (T) | Shaft Bore Dia. d (mm) |
|---|---|---|---|---|---|---|---|
MYR 105.88 | 2 Piece(s) | Available | 18 Day(s) | 25 | 30 | 15 | |
MYR 105.88 | 2 Piece(s) | Available | 18 Day(s) | 25 | 30 | 15 |
Loading...
Bearing is pressed fit.
Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)
MISUMI makes no commitment to the bearing brand
Tapped Hole Size Table
(Shaft Bore Specs.: P·N)
Timing pulleys are not provided with fixing screws. You may purchase them separately referring to the recommended fixing screw models.
■ Dimension Specification Table
Dimensional Drawing
| ●Central Bearing | ●Both Sides Bearing | |
| <Single Bearing> | <Double Bearing> | |
 |  |  |
Bearing is pressed fit. Bearing Accuracy: JIS/ISO Class 0 (Before press-fitting)MISUMI makes no commitment to the bearing brandTapped Hole Size Table
(Shaft Bore Specs.: P·N)
| dH7 Shaft Hole ID | 2-M (Coarse Thread) | Single Model of Fixing Screw | Box Model of Fixing Screw |
| 8 to 12 | M4 | MSSU4-3 | BOX-MSSU4-3 |
| 13 to 17 | M5 | MSSU5-4 | BOX-MSSU5-4 |
| 18 to 20 | M6 | MSSU6-5 | BOX-MSSU6-5 |
Timing pulleys are not provided with fixing screws. You may purchase them separately referring to the recommended fixing screw models.Specification Table
 Material |  Surface Treatment | |
| Pulley | Flange | |
| Aluminum Alloy | Aluminum Alloy | Clear Anodized |
■ Dimension Specification Table
| Part Number | Shaft Diameter d | P.D. | O.D. | F | E | A | W | S | Bearing size | |||
| Number of Teeth | Applicable Belt | No. | D | B | ||||||||
| 20 | H8M150 | 12 | 50.93 | 49.56 | 58 | 40 | 17 | 22 | 6 | 6201ZZ×1 | 32 | 10 |
| H8M250 | 15 | 28 | 33 | 5.5 | 6202ZZ×2 | 35 | 11 | |||||
| 22 | H8M150 | 12 | 56.02 | 54.65 | 61 | 45 | 17 | 22 | 6 | 6201ZZ×1 | 32 | 10 |
| 24 | H8M150 | 12 | 61.12 | 59.74 | 67 | 50 | 17 | 22 | 6 | 6201ZZ×1 | 32 | 10 |
| H8M250 | 28 | 33 | 6.5 | 6201ZZ×2 | ||||||||
| H8M300 | 15 | 33 | 38 | 8 | 6202ZZ×2 | 35 | 11 | |||||
| H8M400 | 44 | 49 | 13.5 | |||||||||
| 25 | H8M150 | 15 | 63.66 | 62.29 | 70 | 56 | 17 | 22 | 5.5 | 6202ZZ×1 | 35 | 11 |
| 26 | H8M150 | 15 | 66.21 | 64.84 | 74 | 58 | 17 | 22 | 5.5 | 6202ZZ×1 | 35 | 11 |
| 28 | H8M150 | 15 | 71.3 | 69.93 | 80 | 60 | 17 | 22 | 5.5 | 6202ZZ×1 | 35 | 11 |
| 30 | H8M150 | 15 | 76.39 | 75.02 | 87 | 67 | 17 | 22 | 5.5 | 6202ZZ×1 | 35 | 11 |
| H8M250 | 28 | 33 | 5.5 | 6202ZZ×2 | ||||||||
| H8M300 | 20 | 33 | 38 | 5 | 6204ZZ×2 | 47 | 14 | |||||
| H8M400 | 44 | 49 | 10.5 | |||||||||
| 32 | H8M150 | 20 | 81.49 | 80.12 | 87 | 67 | 17 | 22 | 4 | 6204ZZ×1 | 47 | 14 |
| 34 | H8M150 | 20 | 86.58 | 85.21 | 95 | 75 | 17 | 22 | 4 | 6204ZZ×1 | 47 | 14 |
| 40 | H8M150 | 25 | 101.86 | 100.49 | 111 | 90 | 17 | 22 | 3.5 | 6205ZZ×1 | 52 | 15 |
| Part Number | Shaft Diameter d | P.D. | O.D. | F | E | A | W | Dh | Bearing size | |||
| Number of Teeth | Applicable Belt | No. | D | B | ||||||||
| 22 | H8M250 | 12 | 56.02 | 54.65 | 61 | 45 | 28 | 33 | 27 | 6201ZZ×2 | 32 | 10 |
| H8M300 | 33 | 38 | ||||||||||
| H8M400 | 44 | 49 | ||||||||||
| 24 | H8M250 | 12 | 61.12 | 59.74 | 67 | 50 | 28 | 33 | 27 | 6201ZZ×2 | 32 | 10 |
| H8M300 | 33 | 38 | ||||||||||
| H8M400 | 44 | 49 | ||||||||||
| 25 | H8M250 | 12 | 63.66 | 62.29 | 70 | 56 | 28 | 33 | 27 | 6201ZZ×2 | 32 | 10 |
| H8M300 | 33 | 38 | ||||||||||
| H8M400 | 44 | 49 | ||||||||||
| 26 | H8M150 | 12 | 66.21 | 64.84 | 74 | 58 | 17 | 22 | 25 | 6001ZZ×2 | 28 | 8 |
| H8M250 | 28 | 33 | ||||||||||
| H8M300 | 33 | 38 | 27 | 6201ZZ×2 | 32 | 10 | ||||||
| H8M400 | 44 | 49 | ||||||||||
| 28 | H8M250 | 15 | 71.3 | 69.93 | 80 | 60 | 28 | 33 | 30 | 6202ZZ×2 | 35 | 11 |
| H8M300 | 33 | 38 | ||||||||||
| H8M400 | 44 | 49 | ||||||||||
| 30 | H8M150 | 15 | 76.39 | 75.02 | 87 | 67 | 17 | 22 | 29 | 6002ZZ×2 | 32 | 9 |
| H8M250 | 28 | 33 | ||||||||||
| H8M300 | 33 | 38 | 30 | 6202ZZ×2 | 35 | 11 | ||||||
| H8M400 | 44 | 49 | ||||||||||
| 30 | H8M250 | 20 | 76.39 | 75.02 | 87 | 67 | 28 | 33 | 37 | 6004ZZ×2 | 42 | 12 |
| H8M300 | 33 | 38 | 41 | 6204ZZ×2 | 47 | 14 | ||||||
| H8M400 | 44 | 49 | ||||||||||
| 32 | H8M250 | 20 | 81.49 | 80.12 | 87 | 67 | 28 | 33 | 41 | 6204ZZ×2 | 47 | 14 |
| H8M300 | 33 | 38 | ||||||||||
| H8M400 | 44 | 49 | ||||||||||
| 34 | H8M250 | 20 | 86.58 | 85.21 | 95 | 75 | 28 | 33 | 41 | 6204ZZ×2 | 47 | 14 |
| H8M300 | 33 | 38 | ||||||||||
| H8M400 | 44 | 49 | ||||||||||
| 40 | H8M250 | 25 | 101.86 | 100.49 | 111 | 90 | 28 | 33 | 43 | 6005ZZ×2 | 47 | 12 |
| H8M300 | 33 | 38 | 47 | 6205ZZ×2 | 52 | 15 | ||||||
| H8M400 | 44 | 49 | ||||||||||
Basic Information
| Type | Idlers with Teeth | Belt Type | 8M | Material | Ultra Super Duralmin Type Aluminum Alloy |
|---|---|---|---|---|---|
| Surface Treatment | Clear Anodize | Timing Pulley / Idler | Idlers |
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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