Round belt pulleys / half-round groove double / grub screw clamping / stainless steel, aluminium / anodised (Part Numbers - CAD Download)

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Back to the Category Round Belt Pulleys, Idlers

Technical Drawing - Round Belt Track Rollers

Pulleys for Round Belts/Double Grooves:Related Image
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Available dimensions and tolerances can be found under the tab More Information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Round Belt Track Rollers

TypeMaterialSurface TreatmentAccessory
MBWACAluminum Alloy 5000 seriesClear AnodizeSet Screw 2 pcs.
(EN 1.4301 Equiv.)
MBWSEN 1.4301 Equiv.-

Further specifications can be found under the tab More Information.

Composition of a Product Code - Round Belt Track Rollers

Part Number-R-Shaft Bore Specification, I.D.
MBWS30-1.6-P5

Alterations - Round Belt Track Rollers

Pulleys for Round Belts/Double Grooves:Related Image

General Information - Round Belt Track Rollers

Round belt disk with hub - round belt disk with two grooves as idler pulley - plastic idler pulley - round belt disk with hub and double groove - round belt disk with clamping scar

 

Selection details of round belt discs/idler pulleys

- Material: aluminum, steel, stainless steel, resin type (polyacetal)

- Coatings: untreated, burnished, nickel-plated, anodized

- Groove shape: V-groove (trapezoid groove), U-groove

- Belt diameter: single groove, double groove

- Effective diameter: 2 to 10 mm

- Shaft diameter: 15 to 140 mm

- Mounting: 3 to 20 mm

 

Description/Basics

The round belt disk for mechanical engineering is generally intended for drive and power transmission.
A system with round belts and round belt disk can transmit force over larger distances. An idler pulley is recommended depending on the distance to the guide. This reduces oscillations in a belt drive and minimizes the risk of the belt jumping off the round belt pulley. In addition, the belt tension of a round belt is important for power transmission. Depending on the application, the tension can be produced via a round belt disk with integrated ball bearing (tension roller). In addition, the use of a tension roller can increase the wrap angle and thus the contact surface of the belt on the round belt disk. Round belt disks made of plastic are often used for tensioning the round belt.

In principle, MISUIM offers two types of round belt discs. These are available with a trapezoidal groove (V-groove) or radius (U-groove) suitable for the round belt. The V-groove round belt disks are adapted to the round belt and offer the advantage that they form up to three contact points for the round belt due to their shape. In comparison, round belt disks with a V-groove can thus have a higher slip torque.
MISUMI also offers round belt disks with two grooves for drives mounted side-by-side. The combination of two round belt disks can be absorbed with force and simultaneously released and forwarded. In pulleys for round belts with double grooves, the force can also be delivered in different directions or systems. Therefore, it may be possible to forgo a drive unit and reduce costs.
The drive wheels for round belts can be fastened on a axles / rotary shafts in various ways. A flat round belt disk is mounted on an axle using a clamping screw. MISUMI also offers this as a round belt disk with hub and optionally with keyways. Another commonly used variant is the belt pulley with clamping scar.
The belt pulleys for round belts can often be found in transport technology to convey light objects. These are usually operated in a permanent and constant transport.

If higher forces occur in a system and any slip is undesirable, a timing pulleys can be used.

 

Application Examples - Round Belt Track Rollers

Application example conveyor belt - round belts with two grooves - conveyor belts with round belts - round belt discs with axle

Application example conveyor belt
(1) Round belt disk with double groove, (2) rotary shaft, (3) Round belt, (4) Workpiece

 
Application example round belt conveyor belt - roller conveyor - conveyor belt with round belt - round belt wheel with round belt

Application example conveyor belt
(1) Round belt, (2) Motor, (3) Idler pulley/return roller, (4) Drive wheel for round belt

 
 
Application example roller conveyors - round belt discs with roller idlers - round belt discs with rollers - round belt discs with rollers - round belt discs with conveyor rollers

Application example roller conveyor
(1) Round belt disk, (2) Round belts, (3) Conveyor rollers

 
Application example round belt disk - round belt drive with bearing housing - round belt drive distribution

Application example
(1) Round belt disc with hub, (2) round belt, (3) rotary shaft, (4) bearing housing

 

 

Industrial Applications

3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

Part Number:  

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Part Number
MBWS20-1.6-P[3-10/1]
MBWS23-2.1-P[5-12/1]
MBWS28-2.1-P[5-12/1]
MBWS28-2.6-P[5-12/1]
MBWS28-3.1-P[5-12/1]
MBWS30-1.1-P[4-12/1]
MBWS30-1.6-P[5-12/1]
MBWS30-2.1-P[5-12/1]
MBWS38-3.1-P[5-20/1]
MBWS40-1.6-P[5-12/1]
MBWS40-2.1-P[5-12/1]
MBWS40-2.6-P[5-20/1]
MBWS45-1.6-P[5-20/1]
MBWS45-2.1-P[5-18/1]
MBWS48-2.1-P[5-20/1]
MBWS48-3.1-P[5-20/1]
MBWS50-2.6-P[5-20/1]
MBWS50-3.1-P[5-20/1]
MBWS50-4.1-P[5-20/1]
MBWS60-3.1-P[5-20/1]
MBWS60-4.1-P[5-20/1]
MBWS60-5.1-P[5-20/1]
MBWS75-3.1-P[5-20/1]
MBWS100-3.1-P[5-20/1]
MBWS100-4.1-P[5-20/1]
MBWS100-5.1-P[5-20/1]
MBWS140-5.1-P[5-20/1]
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSApplicable Belt Dia.
(Ø)
Pitch Circle Dia. P.D.
(Ø)
Material Surface Treatment Shaft Dia. d (or P)
(Ø)
R
(mm)

-

1 10 Days 10320EN 1.4301 Equiv.Not Provided3 ~ 101.6

-

1 10 Days 10423EN 1.4301 Equiv.Not Provided5 ~ 122.1

-

1 10 Days 10428EN 1.4301 Equiv.Not Provided5 ~ 122.1

-

1 12 Days 10528EN 1.4301 Equiv.Not Provided5 ~ 122.6

-

1 12 Days 10628EN 1.4301 Equiv.Not Provided5 ~ 123.1

-

1 10 Days 10230EN 1.4301 Equiv.Not Provided4 ~ 121.1

-

1 10 Days 10330EN 1.4301 Equiv.Not Provided5 ~ 121.6

-

1 10 Days 10430EN 1.4301 Equiv.Not Provided5 ~ 122.1

-

1 12 Days 10638EN 1.4301 Equiv.Not Provided5 ~ 203.1

-

1 10 Days 10340EN 1.4301 Equiv.Not Provided5 ~ 121.6

-

1 10 Days 10440EN 1.4301 Equiv.Not Provided5 ~ 122.1

-

1 12 Days 10540EN 1.4301 Equiv.Not Provided5 ~ 202.6

-

1 10 Days 10345EN 1.4301 Equiv.Not Provided5 ~ 201.6

-

1 10 Days 10445EN 1.4301 Equiv.Not Provided5 ~ 182.1

-

1 10 Days 10448EN 1.4301 Equiv.Not Provided5 ~ 202.1

-

1 12 Days 10648EN 1.4301 Equiv.Not Provided5 ~ 203.1

-

1 12 Days 10550EN 1.4301 Equiv.Not Provided5 ~ 202.6

-

1 12 Days 10650EN 1.4301 Equiv.Not Provided5 ~ 203.1

-

1 12 Days 10850EN 1.4301 Equiv.Not Provided5 ~ 204.1

-

1 12 Days 10660EN 1.4301 Equiv.Not Provided5 ~ 203.1

-

1 12 Days 10860EN 1.4301 Equiv.Not Provided5 ~ 204.1

-

1 12 Days 101060EN 1.4301 Equiv.Not Provided5 ~ 205.1

-

1 12 Days 10675EN 1.4301 Equiv.Not Provided5 ~ 203.1

-

1 12 Days 106100EN 1.4301 Equiv.Not Provided5 ~ 203.1

-

1 12 Days 108100EN 1.4301 Equiv.Not Provided5 ~ 204.1

-

1 12 Days 1010100EN 1.4301 Equiv.Not Provided5 ~ 205.1

-

1 12 Days 1010140EN 1.4301 Equiv.Not Provided5 ~ 205.1

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Back to the Category Round Belt Pulleys, Idlers

Technical Drawing - Round Belt Track Rollers

Pulleys for Round Belts/Double Grooves:Related Image
Open the technical drawing in the new window

Specification Tables - Round Belt Track Rollers

Part NumberRShaft Bore Specification, I.D.SDD1D2LBM (Coarse)Accessory: Set ScrewApplicable Round Belt Dia.Unit Price
TypeP.D.P (H7) 1mm IncrementMBWACMBWS
MBWAC
MBWS
151.13~841217131435.8M3M3x32  
204~10162218
304~12203228  
201.63~1051622171635.8M3M3x33  
305~12203227
404237  
455~20304742  
232.15~1262025191835.8M3M3x34  
283024  
303226  
404236
455~182547412047.8M4M4x3  
485~20305044  
282.65~1272030232035.8M3M3x35  
405~203042352247.8M4M4x3  
505245  
283.15~1282230222235.8M3M3x36  
385~203040322447.8M4M4x3  
485042  
505244  
606254  
757769  
10010294  
504.15~20103052423059.8M5M5x48  
606252  
10010292  
605.15~20123462503459.8M5M5x410  
10010290  
140142130  
For MBWAC, surface treatment may not be applied to shaft bores.

Alterations - Round Belt Track Rollers

Pulleys for Round Belts/Double Grooves:Related Image

Basic information

Pulleys/Idlers Pulleys Number of Grooves Double Groove Shape U Groove
Product Type Pulley (No Bearing) Pulley Type Shape B

Frequently Asked Questions (FAQ)

Question:

What is the dimension of the keyway?

Answer:

The keyway of MISUMI round belt track rollers are manufactured according to the new JIS standard (B1301) or the previous JIS standard. Therefore, it is recommended to use a keyway from MISUMI, as these are matched. Dimensions are shown in the Keyway Overview PDF

Question:

How can round belts prevent the round belts from popping off?

Answer:

A round belt can jump or slip off the round belts by adjusting the correct belt tension. Depending on the application and the distance between the round belt track rollers, it requires an idler pulley. MISUMI also offers this for the appropriate belt diameters. These are already equipped with ball bearings and available in steel, stainless steel, aluminum and plastic.

Question:

Are round belt track rollers suitable for strong forces?

Answer:

If higher forces are transmitted, a round belt track roller with trapezoidal groove (V-groove) can be utilised. However, if very high forces are transmitted and slip is undesirable, a synchronous pulley and synchronous belt can be used. These can transmit higher forces without slipping.

Question:

How can an idler pulley be mounted?

Answer:

The idler pulley for the round belt comes already equipped with a ball bearing. Here, the bearing can be mounted on a clamping device with a cantilever pin. However, MISUMI also offers idler pulleys round belts with already pressed axle bolts. This can simplify assembly and reduce the assembly time.

Question:

Are there round belt track rollers made of aluminum?

Answer:

In addition, MISUMI offers in its product assortment round belt track rollers made of aluminum. These have good corrosion resistance and a low density. The round belt track rollers made of aluminum are well-suited for saving weight and generate a lower inertial mass during operation compared to other materials. In addition, the aluminum round belt track rollers are available with single or double groove, as well as V-groove (trapezoidal groove) and U-groove.

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