Idlers HTD 3M
Brand :
MISUMI
Caution
Product Description
Economy series products, please order more than 2 pcs.
Bearing is pressed fit.
Bearing accuracy JIS B1514 Class 0 (Before press-fitting)
HTD timing belt idlers, suitable for MISUMI Economy series HTD Timing Belts.
Economy HTD 3M Idler Pulley
Idler Pulley Belt Alignment Smooth Operation
- Ideal for belt widths of 6mm and 9mm
- Available in specified teeth range configurations.
- Inner diameters within specified range
- Made from clear anodized aluminum
- Supports smooth belt operation
MISUMI Standard
Cheaper Price
Product Variety
3D CAD Support
Product of Timing Pulley Overview
Usually, Timing Pulley, 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.
Driving and transmission are realized through the engagement between the teeth of timing pulleys, timing idlers and timing 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 Timing Pulley products 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 Timing Pulley product, 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 B1514 Class 0 (Before press-fitting)Specifications of Timing Pulley Overview
 Timing Pulley Material |  Surface Treatment | ||
| Body | Flange | Bearing | |
| Aluminum Alloy | Aluminum Alloy | Steel | 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 Belt tensioning Adjust the tension on the inside of the timing belt via the timing belt idler. |
 | 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 timing belt idlers, suitable for MISUMI Economy series HTD 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
① If there are requirements on rust prevention, give priority to products made of the aluminum alloy.
Please click on
Anti-rust performance and maintenance of metal materials and surface treatment.
Please click on
Anti-rust performance and maintenance of metal materials and surface treatment.Related 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
| Flat-belt idlers, Width (T), 6 to 32 mm | Timing Belts H3M | Timing Belts H5M | ||
 |  |  | ||
| Typical Timing Pulley model: HBG15-6 | Typical Timing Pulley model: C-HTBN105H3M-60 | Typical Timing Pulley model: C-HTBN200H5M-90 | ||
| Advantages: short delivery time, multiple types | Advantages: short delivery time, multiple types | Advantages: short delivery time, multiple types |
Dimensional Drawing
| ●Central Bearing | ●Both Sides Bearing | |
| <Single Bearing> | <Double Bearing> | |
 |  |  |
Bearing is pressed fit. Bearing accuracy JIS B1514 Class 0 (Before press-fitting)Specification Table
■Material Specification Table
■Dimension Specification Table 3M (Central Bearing)
＊ The opening on the retaining ring side is φ12.
■Dimension Specification Table 3M (Both Sides Bearing)
MISUMI makes no commitment to the bearing brand
 Material |  Surface Treatment | ||
| Body | Flange | Bearing | |
| Aluminum Alloy | Aluminum Alloy | Steel | Clear Anodized |
■Dimension Specification Table 3M (Central Bearing)
| Part Number | Shaft Dia. | P.D. | O.D. | F | E | A | W | S | Bearing size | |||
| Number of Teeth | Applicable Belt | d | No. | D | B | |||||||
| 20 | H3M060 | 5 | 19.1 | 18.34 | 22 | 14 | 7 | 11 | 3 | 685ZZ×1 | 11＊ | 5 |
| 24 | H3M090 | 5 | 22.92 | 22.16 | 25 | 16 | 11 | 15 | 3.5 | 695ZZ×2 | 13 | 4 |
| 32 | H3M090 | 8 | 30.56 | 29.8 | 35 | 25 | 11 | 15 | 4.5 | 698ZZ×1 | 19 | 6 |
■Dimension Specification Table 3M (Both Sides Bearing)
| Part Number | Shaft Dia. | P.D. | O.D. | F | E | A | W | Dh | Bearing size | |||
| Number of Teeth | Applicable Belt | d | No. | D | B | |||||||
| 20 | H3M090 | 4 | 19.1 | 18.34 | 22 | 14 | 11 | 15 | 6 | 674ZZ×2 | 7 | 2.5 |
| 24 | H3M090 | 5 | 22.92 | 22.16 | 25 | 16 | 11 | 15 | 11 | 695ZZ×2 | 13 | 4 |
| 30 | H3M090 | 6 | 28.65 | 27.89 | 32 | 23 | 11 | 15 | 13 | 696ZZ×2 | 15 | 5 |
MISUMI makes no commitment to the bearing brand