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Idlers, Backside Belt Tensioning (Part Numbers)

Idlers, Backside Belt Tensioning
  • Volume Discount

MISUMI

MiSUMi Economy 58

MISUMI

Idlers, Backside Belt Tensioning
Idlers for timing pulleys are an economy item, The price is cheaper than the MISUMI standard product.They offer a wide variety of sizes to choose from.
[Feature]
● Belt Width Used (mm.) : 4, 6, 10, 15, 20 and 25
● Belt Width Used (Inch.) : 0.19, 0.25, 0.31, 0.37, 0.5, 0.75 and 1
● Bearing Position : Central Single Bearing and Both Sides Bearing
● Shaped : With or without flanged
● Material :
Body and Flange : Aluminum Alloy
Bearing : Steel
● Surface treatment : Clear Anodized
[Application]
Idlers for timing pulleys are used to maintain proper tension and alignment in timing belt systems

  • RoHS

Part Number

Configured Part Number is shown.

This series of products is expected to be closed from December 2025, while stocks last. Recommend similar product series,pleaseClick
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.
During the actual assembly process, the timing belt can be tensioned through the back tensioning idler pulley.
Product Features
Feature 1: The idler pulley for back tensioning of MISUMI timing belt can be applied to all toothed belts.
Feature 2: MISUMI timing belt idler pulleys for tensioning the back side do not come into contact with the tooth surface, greatly reducing wear on the teeth.
Feature 3: The idler wheel is used for tensioning the back of the MISUMI timing belt, which will not contact the tooth surface, and the tensioning position can be adjusted at will.
Feature 4: The idler pulley for tensioning the back of the MISUMI timing belt can be installed on the outside of the loose edge close to the pulley to increase the wrap angle of the belt.
Feature 5: MISUMI timing belt idler pulley complies with industry standards, with stable procurement and easy equipment maintenance.
Feature 6: MISUMI timing belt idler pulleys are available in a variety of materials to adapt to various designs and usage environments.
Dimensional Drawing
MaterialSurface Treatment
main bodyFlangeBearing
Aluminum AlloyAluminum AlloySteelClear Anodized
米思米经济型背面张紧用惰轮规格图
The bearings are press-fitted. *Bearing accuracy JIS B1514 level 0 (before press-fitting)
Specification Overview
订货范例
 
■Dimensional specification table Center bearing type
Typeouter diameter
D		FAApplicable belt nominal widthSBearing model and size
TypeApplicable BeltinchmmNo.dB
C－AFBD(no Flange type)
C－AFDF(With Flange type)		920255－0402.5695ZZ54
2530
106019－696ZZ65
117－0603
11.57.5025－3.25
14303590314698ZZ86
15110371004.5
16404846000ZZ108
19303614050－6.5698ZZ86
35455.5628ZZ8
C－AFBD(no Flange type)
C－AFDF(With Flange type)		22354517－15076000ZZ108
*45556.56200ZZ9
26404821075－96000ZZ8
Dimensions marked with * are only available for C-AFDF

■Dimensional specification table Bearing type on both sides
TypeNominal
Model		outer diameter
D		FAApplicable belt nominal widthBearing model and size
TypeApplicable BeltinchmmNo.dB
C－AFBD(no Flange type)
C－AFDF(With Flange type)		91515185－040675ZZ×252.5
111515187060675ZZ×252.5
202025676ZZ×263
11.5*1515187.5025－675ZZ×252.5
1525253011037100688ZZ×285
193214050－
30W3036
2225253217－150
35W35456000ZZ×2108
2640W404821075－
*45W45556201ZZ×21210
2760606722－200
3245455527100250
656574
3755556732－300
4570708040150－6202ZZ×21511
49*60606744－400
For detailed sales models, please refer to the MISUMI official website.
Dimensions marked with * are only available for C-AFDF
Usage Method
Usage case diagramHow to use the idler pulley for back tensioning of timing belt
米思米同步带背面张紧用惰轮案例When using a back tension idler on the outside, the pulley diameter should be selected to be at least 20% larger than the smallest pulley diameter in the product catalog.
① When using tensioning idler pulleys on the outer side, they should be positioned near the larger pulley.
②The bending angle of the machine belt should be greater than 140#.
③ The tension idler should use a flat pulley without protrusions.
④Do not use the idler pulley for back tensioning of polyurethane belts.
Example of Use
使用米思米同步带惰轮进行设计的皮带张力装置案例图
■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
Related Industries
Semiconductor Automotives Smartphones
米思米背面张紧用惰轮适用于半导体行业 米思米背面张紧用惰轮适用于汽车行业 使用米思米同步带惰轮进行设计的皮带张力装置案例图
Medical Electronic & Electrical Appliances Robotics
米思米背面张紧用惰轮适用于医疗行业 米思米背面张紧用惰轮适用于电子电器行业 米思米背面张紧用惰轮适用于智能手机行业
Precautions
① Do not use the idler pulley for back tensioning on polyurethane timing belts.
Related 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。
Related Products
Idler pulley for flat belt Width (T) 6～32ｍｍ Flat belt for general use High torque timing pulley S2M type
米思米平皮带用惰轮 米思米平皮带用惰轮 米思米高扭矩同步带轮S2M型
Representative model: HBG15-6 Representative model: HBLT350-4.23 Representative model: HTPA48S2M040-B-N10
Advantages: short delivery time, various types Advantages: Freely specify the size Advantages: short delivery time, various types

Part Number 

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  1. 1
Part Number
C-AFBD9-15
C-AFBD9-20
C-AFBD10-25
C-AFBD11-15
C-AFBD11-20
C-AFBD11-25
C-AFBD11.5-25
C-AFBD14-30
C-AFBD15-20
C-AFBD15-25
C-AFBD15-30
C-AFBD16-40
C-AFBD19-25
C-AFBD19-30
C-AFBD19-30W
C-AFBD19-35
C-AFBD22-25
C-AFBD22-35
C-AFBD22-35W
C-AFBD26-40
C-AFBD26-40W
C-AFBD27-60
C-AFBD32-45
C-AFBD32-65
C-AFBD37-55
C-AFBD45-70
C-AFDF9-20
C-AFDF10-25
C-AFDF11-15
C-AFDF11-20
C-AFDF11-25
C-AFDF11.5-15
C-AFDF11.5-25
C-AFDF14-30
C-AFDF15-20
C-AFDF15-25
C-AFDF15-30
C-AFDF16-40
C-AFDF19-25
C-AFDF19-30
C-AFDF19-45
C-AFDF22-25
C-AFDF22-35
C-AFDF22-45
C-AFDF26-40
C-AFDF26-40W
C-AFDF26-45W
C-AFDF27-60
C-AFDF32-45
C-AFDF32-65
C-AFDF37-55
C-AFDF45-70
C-AFDF49-60
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipBelt Width Used
(mm) 		Belt Width
(Inch) 		Bearing Position Groove Width W
(mm) 		With or w/o Flange Outer Dia. D
(mm)

MYR 27.97

1 Piece(s)Available 1 Day(s) or more 4-2-Sided Bearing Type9Without Flange15

MYR 24.27

1 Piece(s)Available 1 Day(s) or more 4-Center Bearing Type9Without Flange20

MYR 22.49

1 Piece(s)Available 1 Day(s) or more 4.80.19Center Bearing Type10Without Flange25

MYR 28.07

1 Piece(s)Available 1 Day(s) or more 6-2-Sided Bearing Type11Without Flange15

MYR 24.64

2 Piece(s) 5 Day(s) or more ------

MYR 22.61

1 Piece(s)Available 1 Day(s) or more 6-Center Bearing Type11Without Flange25

MYR 25.43

1 Piece(s)Available 1 Day(s) or more 6.40.25Center Bearing Type11Without Flange25

MYR 26.15

1 Piece(s)Available 1 Day(s) or more 7.90.31Center Bearing Type14Without Flange30

MYR 29.30

1 Piece(s)Available 1 Day(s) or more 100.372-Sided Bearing Type15Without Flange20

MYR 26.25

2 Piece(s) 7 Day(s) or more ------

MYR 23.22

1 Piece(s)Available 1 Day(s) or more 100.37Center Bearing Type15Without Flange30

MYR 25.39

2 Piece(s) 5 Day(s) or more ------

MYR 25.85

2 Piece(s) 5 Day(s) or more ------

MYR 27.61

1 Piece(s)Available 1 Day(s) or more 12.70.5Center Bearing Type19Without Flange30

MYR 29.79

1 Piece(s)Available 1 Day(s) or more 12.70.52-Sided Bearing Type19Without Flange30

MYR 28.80

2 Piece(s) 5 Day(s) or more ------

MYR 29.41

2 Piece(s) 5 Day(s) or more ------

MYR 31.53

1 Piece(s)Available 1 Day(s) or more 15-Center Bearing Type22Without Flange35

MYR 38.79

1 Piece(s)Available 1 Day(s) or more 15-2-Sided Bearing Type22Without Flange35

MYR 32.99

1 Piece(s)Available 1 Day(s) or more 19.10.75Center Bearing Type26Without Flange40

MYR 40.14

1 Piece(s)Available 1 Day(s) or more 19.10.752-Sided Bearing Type26Without Flange40

MYR 45.79

2 Piece(s) 5 Day(s) or more ------

MYR 44.65

1 Piece(s)Available 1 Day(s) or more 2512-Sided Bearing Type32Without Flange45

MYR 52.68

2 Piece(s) 5 Day(s) or more ------

MYR 54.92

2 Piece(s) 7 Day(s) or more ------

MYR 66.64

2 Piece(s) 5 Day(s) or more ------

MYR 27.02

1 Piece(s)Available 5 Day(s) or more 4-Center Bearing Type9With Flange20

MYR 27.13

1 Piece(s)Available 5 Day(s) or more 4.80.19Center Bearing Type10With Flange25

MYR 31.51

1 Piece(s)Available 1 Day(s) or more 6-2-Sided Bearing Type11With Flange15

MYR 27.13

2 Piece(s) 5 Day(s) or more ------

MYR 25.18

1 Piece(s)Available 1 Day(s) or more 6-Center Bearing Type11With Flange25

MYR 25.67

2 Piece(s) 5 Day(s) or more ------

MYR 25.22

1 Piece(s)Available 1 Day(s) or more 6.40.25Center Bearing Type11With Flange25

MYR 30.39

1 Piece(s)Available 5 Day(s) or more 7.90.31Center Bearing Type14With Flange30

MYR 28.79

1 Piece(s)Available 1 Day(s) or more 100.372-Sided Bearing Type15With Flange20

MYR 29.71

2 Piece(s) 7 Day(s) or more ------

MYR 24.95

1 Piece(s)Available 1 Day(s) or more 100.37Center Bearing Type15With Flange30

MYR 29.03

2 Piece(s) 5 Day(s) or more ------

MYR 34.34

2 Piece(s)Available 5 Day(s) or more 12.70.52-Sided Bearing Type19With Flange25

MYR 29.44

1 Piece(s)Available 1 Day(s) or more 12.70.5Center Bearing Type19With Flange30

MYR 29.59

2 Piece(s) 5 Day(s) or more ------

MYR 32.23

1 Piece(s)Available 1 Day(s) or more 15-2-Sided Bearing Type22With Flange25

MYR 35.44

1 Piece(s)Available 1 Day(s) or more 15-Center Bearing Type22With Flange35

MYR 39.64

2 Piece(s) 7 Day(s) or more ------

MYR 37.63

1 Piece(s)Available 1 Day(s) or more 19.10.75Center Bearing Type26With Flange40

MYR 44.19

1 Piece(s)Available 1 Day(s) or more 19.10.752-Sided Bearing Type26With Flange40

MYR 47.75

2 Piece(s) 5 Day(s) or more ------

MYR 47.99

1 Piece(s)Available 1 Day(s) or more 20-2-Sided Bearing Type27With Flange60

MYR 44.20

1 Piece(s)Available 1 Day(s) or more 2512-Sided Bearing Type32With Flange45

MYR 60.38

2 Piece(s) 5 Day(s) or more ------

MYR 23.73

2 Piece(s) 7 Day(s) or more ------

MYR 63.60

2 Piece(s) 5 Day(s) or more ------

MYR 68.43

2 Piece(s) 5 Day(s) or more ------

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  1. 1

Basic Information

Type Idlers Material Aluminum Alloy Surface Treatment Clear Anodize
Timing Pulley / Idler Idlers

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53 Part Numbers

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Specification/Dimensions

  • Belt Width Used(mm)

    • 4
    • 4.8
    • 6
    • 6.4
    • 7.9
    • 10
    • 12.7
    • 15
    • 19.1
    • 20
    • 25

    Clear

  • Belt Width(Inch)

    • 0.19
    • 0.25
    • 0.31
    • 0.37
    • 0.5
    • 0.75
    • 1

    Clear

  • Bearing Position

    • 2-Sided Bearing Type
    • Center Bearing Type

    Clear

  • Groove Width W(mm)

    • 9
    • 10
    • 11
    • 14
    • 15
    • 19
    • 22
    • 26
    • 27
    • 32

    Clear

  • With or w/o Flange

    • With Flange
    • Without Flange

    Clear

  • Outer Dia. D(mm)

    • 15
    • 20
    • 25
    • 30
    • 35
    • 40
    • 45
    • 60

    Clear

  • type

    • C-AFBD
    • C-AFDF

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • 1 Day(s) or Less
    • 5 Day(s) or Less
    • 7 Day(s) or Less

    Clear

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