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Backside Tension Idler Pulleys

Backside Tension Idler Pulleys
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Product Overview
Usually, timing pulleys, timing idlers and timing belts are widely used to design mechanisms for transmitting rotational power generated by motors.
During the actual assembly, timing belts can be tensioned with backside tensioning idlers.
Dimensional Drawing
Dimensional Drawing
Bearing is pressed fit.
Bearing Accuracy: GB/T 307.1 Class 0 (Before press-fitting)
MISUMI makes no commitment to the bearing brand.
 
■Material Table
Type Material Surface Treatment
Not FlangedFlangedBodyFlangeBearing
E-LAFBDE-LAFDFAluminum AlloyAluminum AlloySteelClear Anodized
E-LBFBDE-LBFDFEquivalent to S45CSPCCFerroferric Oxide Protective Film
E-LMFBDE-LMFDFElectroless Nickel Plating
The color of surface treatment varies depending on the lot.
If there are requirements for rust prevention, give priority to products made of aluminum alloy and with surface treatment of electroless nickel plating.
 For details, please click on  Anti-rust performance and maintenance of metal materials and surface treatment.
Specification Table
■Dimension Specification Table Central Bearing
Part NumberDFAApplicable Belt Nominal WidthSBearing sizeRetaining Ring
TypeWinchmmSpecificationsdBE-LAFBD
E-LMFBD
E-LAFDF
E-LMFDF
E-LBFBD
E-LBFDF
Not Flanged
E-LAFBD
E-LBFBD
E-LMFBD


Flanged
E-LAFDF
E-LBFDF
E-LMFDF
920255-42.5695ZZ54RTWS13RTWN13
2530
10253060.19-2.5696ZZ65RTWS15RTWN15
1125307-63696ZZ65RTWS15RTWN15
11.525307.50.25-3.25696ZZ65RTWS15RTWN15
14303590.314698ZZ86RTWS19RTWN19
153035110.37104.5698ZZ86RTWS19RTWN19
16404846000ZZ108RTWS26RTWN26
193036140.50-6.5698ZZ86RTWS19RTWN19
35455.5628ZZ88RTWS24RTWN24
455556200ZZ109RTWS30RTWN30
22354517-1576000ZZ108RTWS26RTWN26
45556.56200ZZ109RTWS30RTWN30
264048210.75-96000ZZ108RTWS26RTWN26
45558.56200ZZ109RTWS30RTWN30
50588.510

■Dimension Specification Table Both Sides Bearing
Part NumberNominal ModelDFAApplicable Belt Nominal WidthBearing size
TypeWinchmmSpecificationsdB
Not Flanged
E-LAFBD

Flanged
E-LAFDF
91515185-4675ZZ×252.5
20W2025676ZZ×263
1115151876675ZZ×252.5
202025676ZZ×263
11.51515187.50.25-675ZZ×252.5
202025676ZZ×263
15202025110.3710686ZZ×265
252530688ZZ×285
19252532140.50-688ZZ×285
30W3036688ZZ×285
2225253217-15688ZZ×285
35W35456000ZZ×2108
2640W4048210.75-6000ZZ×2108
45W45556201ZZ×21210
2760606722-206201ZZ×21210
32454555271.0025
65657427
3755556732-30
65657432
45707080401.50-6202ZZ×21511
4960606744-40
70708044
586060675350
59707080542.00-
Product Features
Feature 1: MISUMI backside tensioning idlers for timing belts are applicable to all toothed belts.
Feature 2: MISUMI backside tensioning idlers for timing belts do not come into contact with tooth surface, greatly reducing wear of tooth surface.
Feature 3: MISUMI backside tensioning idlers for timing belts do not come into contact with tooth surface, enabling free adjustment of tensioning position.
Feature 4: MISUMI backside tensioning idlers for timing belts can be installed outside of the loose side and near the pulley, increasing the belt wrap angle.
Feature 5: MISUMI timing belt idlers satisfy industrial standards, enabling for a reliable purchase and simple equipment maintenance.
Feature 6: MISUMI timing belt idlers are available in various materials and suitable for a wide range of design and use environments.
Usage Method
Usage Method Example DrawingUsage Method of Timing Belt Backside Tensioning Idlers
Usage MethodWhen the backside tensioning idler is used on the outside, the selected pulley diameter should be more than 20% larger than the minimum pulley diameter in the product catalog.
① When the backside tensioning ilder is used on the outside, it should be set close to the large pulley.
② The bending angle of the machine belt should be greater than 140#.
③ The flat pulley without bulge should be used for the tensioning idler.
④ Do not use the backside tensioning idler for the polyurethane belt.
Example of Use
Belt tension device (manual)
■ 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
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.
Application Industries
Food Semiconductor Smart Phones
It is widely used in food transport and transfer Industry Application Industry Semiconductor Smartphone 3C IPHONE Huawei
Medical Electronic & Electrical Lithium battery
Widely used in medical equipment, blood machines and other related equipment in the biomedical industry Method of usage in electronic & electrical and home appliances industry Application industry Lithium battery
Related Products
Related Documents
Part Number
E-LAFBD9-15
E-LAFBD9-20
E-LAFBD9-20W
E-LAFBD9-25
E-LAFBD10-25
E-LAFBD11-15
E-LAFBD11-20
E-LAFBD11-25
E-LAFBD11.5-15
E-LAFBD11.5-20
E-LAFBD11.5-25
E-LAFBD14-30
E-LAFBD15-20
E-LAFBD15-25
E-LAFBD15-30
E-LAFBD16-40
E-LAFBD19-25
E-LAFBD19-30
E-LAFBD19-30W
E-LAFBD19-35
E-LAFBD19-45
E-LAFBD22-25
E-LAFBD22-35
E-LAFBD22-35W
E-LAFBD22-45
E-LAFBD26-40
E-LAFBD26-40W
E-LAFBD26-45
E-LAFBD26-45W
E-LAFBD26-50
E-LAFBD27-60
E-LAFBD32-45
E-LAFBD32-65
E-LAFBD37-55
E-LAFBD37-65
E-LAFBD45-70
E-LAFBD49-60
E-LAFBD49-70
E-LAFBD58-60
E-LAFBD59-70
E-LAFDF9-15
E-LAFDF9-20
E-LAFDF9-20W
E-LAFDF9-25
E-LAFDF10-25
E-LAFDF11-15
E-LAFDF11-20
E-LAFDF11-25
E-LAFDF11.5-15
E-LAFDF11.5-20
E-LAFDF11.5-25
E-LAFDF14-30
E-LAFDF15-20
E-LAFDF15-25
E-LAFDF15-30
E-LAFDF16-40
E-LAFDF19-25
E-LAFDF19-30
E-LAFDF19-30W
E-LAFDF19-35
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipSố ngày giao hàngBelt Width Used
(mm)
Material Surface Treatment Shaft Bore Dia. d
(mm)
Bearing Position Groove Width W
(mm)
With or w/o Flange Outer Dia. D
(mm)
Operating Belt Width
(inch)

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Frequently asked question (FAQ)FAQ

Question:Question: Why does the flange drop during use of a timing belt idlers?
Answer:Answer: The function of the flange is to prevent production accidents caused by deviation and drop of the timing belt. Therefore, the flange drops mainly because it is squeezed off by the timing belt that has deviated for a long time. We recommend that the customer regularly check the condition of the timing belt of the equipment to avoid its deviation.
Question:Question: Why is the color of MISUMI's clear anodized timing belt idler similar with the hard anodized one?
Answer:Answer: As the clear anodized and hard anodized coating of MISUMI's timing belt idler is relatively thin (about 2 microns), it is difficult to distinguish the color.
Question:Question: What is the idlers?
Answer:Answer: It mainly plays the role of tension adjustment and auxiliary transmission of the timing belt.
Question:Question: What does the number in the timing belt idlers S2M, S3M, T5, T10, etc. mean?
Answer:Answer: It mainly represents the tooth pitch of the belt, that is, the distance between two adjacent teeth. They are also the tooth profile models in the timing belt industry.

Check other FAQ (1 items) HideĐóng.