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Round belt pulleys / V-groove, U-groove / grub screw clamping / steel, stainless steel, aluminium / black oxided, chemically nickel-plated, anodised (Part Numbers - CAD Download)

Round belt pulleys / V-groove, U-groove / grub screw clamping / steel, stainless steel, aluminium / black oxided, chemically nickel-plated, anodised
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MISUMI

MISUMI

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Back to the Category Round Belt Pulleys, Idlers

Technical Drawing - Round Belt Track Rollers

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

 

Available dimensions and tolerances can be found under the tab More Information.

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

Trapezoid GrooveU GrooveMaterialSurface Treatment
Shape AShape BShape AShape B
MBRDFMBRDMBRFMBREN 1.1191 Equiv.Black Oxide
MBRDFMMBRDMMBRFMMBRMElectroless Nickel Plating
-MBRDS-MBRSEN 1.4301 Equiv.-
MBRDFAMBRDAMBRFAMBRAAluminum Alloy 5000 seriesClear Anodize

Further specifications can be found under the tab More Information.

Composition of a Product Code - Round Belt Track Rollers

Part Number-Belt Radius-R-Shaft Bore Specification, I.D.
MBRDF30
MBR60		-1.5
 
-
2		-
-		H5
N12

Alterations - Round Belt Track Rollers

Pulleys for Round Belts/Setscrew: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

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Part Number
MBRD28-3-H6.35
MBRD28-3-H[5-12/1]
MBRD28-3-N[8,​10]
MBRD28-3-NK10
MBRD28-3-P6.35
MBRD28-3-P[5-12/1]
MBRD30-1-H6.35
MBRD30-1-H[4-12/1]
MBRD30-1-N[8,​10]
MBRD30-1-NK10
MBRD30-1-P6.35
MBRD30-1-P[4-12/1]
MBRD30-1.5-H6.35
MBRD30-1.5-H[5-12/1]
MBRD30-1.5-N[8,​10]
MBRD30-1.5-NK10
MBRD30-1.5-P6.35
MBRD30-1.5-P[5-12/1]
MBRD30-2-H6.35
MBRD30-2-H[5-12/1]
MBRD30-2-N[8,​10]
MBRD30-2-NK10
MBRD30-2-P6.35
MBRD30-2-P[5-12/1]
MBRD38-3-H6.35
MBRD38-3-H[5-20/1]
MBRD38-3-N[8,​10]
MBRD38-3-NK10
MBRD38-3-P6.35
MBRD38-3-P[5-12/1]
MBRD40-1-H6.35
MBRD40-1-H[4-12/1]
MBRD40-1-N[8,​10]
MBRD40-1-NK10
MBRD40-1-P6.35
MBRD40-1-P[4-12/1]
MBRD40-1.5-H6.35
MBRD40-1.5-H[5-12/1]
MBRD40-1.5-N[8,​10]
MBRD40-1.5-NK10
MBRD40-1.5-P6.35
MBRD40-1.5-P[5-12/1]
MBRD40-2-H6.35
MBRD40-2-H[5-12/1]
MBRD40-2-N[8,​10]
MBRD40-2-NK10
MBRD40-2-P6.35
MBRD40-2-P[5-12/1]
MBRD40-2.5-C10
MBRD40-2.5-H6.35
MBRD40-2.5-H[5-20/1]
MBRD40-2.5-N8
MBRD40-2.5-N[8-15/1]
MBRD40-2.5-NK10
MBRD40-2.5-P6.35
MBRD40-2.5-P[5-20/1]
MBRD45-1.5-C10
MBRD45-1.5-H6.35
MBRD45-1.5-H[5-20/1]
MBRD45-1.5-N8
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSGroove Shape Applicable Belt Dia.
(Ø) 		Pitch Circle Dia. P.D.
(Ø) 		Pulley Type Nominal Width W
(mm) 		Material Surface Treatment R
(mm) 		Belt Radius
(mm) 		NK Shaft Bore Specifications (New JIS Keyway Hole + Tap) [N]
(mm) 		Shaft Bore Specifications (Old JIS Keyway Hole + Tap) [C]
(mm) 		Shaft Bore Specifications (Round Hole + Tap) [P]
(mm) 		Shaft Bore Specifications (Round Hole) [H]
(mm)

-

1 10 Days 10Trapezoid Groove628Shape B6.6EN 1.1191 Equiv.Black Oxide-3----6.35

-

1 10 Days 10Trapezoid Groove628Shape B6.6EN 1.1191 Equiv.Black Oxide-3----5 ～ 12

-

1 10 Days 10Trapezoid Groove628Shape B6.6EN 1.1191 Equiv.Black Oxide-3-8 ～ 10---

-

1 10 Days 10Trapezoid Groove628Shape B6.6EN 1.1191 Equiv.Black Oxide-310----

-

1 10 Days 10Trapezoid Groove628Shape B6.6EN 1.1191 Equiv.Black Oxide-3---6.35-

-

1 10 Days 10Trapezoid Groove628Shape B6.6EN 1.1191 Equiv.Black Oxide-3---5 ～ 12-

-

1 10 Days 10Trapezoid Groove230Shape B2.2EN 1.1191 Equiv.Black Oxide-1----6.35

-

1 10 Days 10Trapezoid Groove230Shape B2.2EN 1.1191 Equiv.Black Oxide-1----4 ～ 12

-

1 10 Days 10Trapezoid Groove230Shape B2.2EN 1.1191 Equiv.Black Oxide-1-8 ～ 10---

-

1 10 Days 10Trapezoid Groove230Shape B2.2EN 1.1191 Equiv.Black Oxide-110----

-

1 10 Days 10Trapezoid Groove230Shape B2.2EN 1.1191 Equiv.Black Oxide-1---6.35-

-

1 10 Days 10Trapezoid Groove230Shape B2.2EN 1.1191 Equiv.Black Oxide-1---4 ～ 12-

-

1 10 Days 10Trapezoid Groove330Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5----6.35

-

1 10 Days 10Trapezoid Groove330Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5----5 ～ 12

-

1 10 Days 10Trapezoid Groove330Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5-8 ～ 10---

-

1 10 Days 10Trapezoid Groove330Shape B3.3EN 1.1191 Equiv.Black Oxide-1.510----

-

1 10 Days 10Trapezoid Groove330Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5---6.35-

-

1 10 Days 10Trapezoid Groove330Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5---5 ～ 12-

-

1 10 Days 10Trapezoid Groove430Shape B4.4EN 1.1191 Equiv.Black Oxide-2----6.35

-

1 10 Days 10Trapezoid Groove430Shape B4.4EN 1.1191 Equiv.Black Oxide-2----5 ～ 12

-

1 10 Days 10Trapezoid Groove430Shape B4.4EN 1.1191 Equiv.Black Oxide-2-8 ～ 10---

-

1 10 Days 10Trapezoid Groove430Shape B4.4EN 1.1191 Equiv.Black Oxide-210----

-

1 10 Days 10Trapezoid Groove430Shape B4.4EN 1.1191 Equiv.Black Oxide-2---6.35-

-

1 10 Days 10Trapezoid Groove430Shape B4.4EN 1.1191 Equiv.Black Oxide-2---5 ～ 12-

-

1 10 Days 10Trapezoid Groove638Shape B6.6EN 1.1191 Equiv.Black Oxide-3----6.35

-

1 10 Days 10Trapezoid Groove638Shape B6.6EN 1.1191 Equiv.Black Oxide-3----5 ～ 20

-

1 10 Days 10Trapezoid Groove638Shape B6.6EN 1.1191 Equiv.Black Oxide-3-8 ～ 10---

-

1 10 Days 10Trapezoid Groove638Shape B6.6EN 1.1191 Equiv.Black Oxide-310----

-

1 10 Days 10Trapezoid Groove638Shape B6.6EN 1.1191 Equiv.Black Oxide-3---6.35-

-

1 10 Days 10Trapezoid Groove638Shape B6.6EN 1.1191 Equiv.Black Oxide-3---5 ～ 12-

-

1 10 Days 10Trapezoid Groove240Shape B2.2EN 1.1191 Equiv.Black Oxide-1----6.35

-

1 10 Days 10Trapezoid Groove240Shape B2.2EN 1.1191 Equiv.Black Oxide-1----4 ～ 12

-

1 10 Days 10Trapezoid Groove240Shape B2.2EN 1.1191 Equiv.Black Oxide-1-8 ～ 10---

-

1 10 Days 10Trapezoid Groove240Shape B2.2EN 1.1191 Equiv.Black Oxide-110----

-

1 10 Days 10Trapezoid Groove240Shape B2.2EN 1.1191 Equiv.Black Oxide-1---6.35-

-

1 10 Days 10Trapezoid Groove240Shape B2.2EN 1.1191 Equiv.Black Oxide-1---4 ～ 12-

-

1 10 Days 10Trapezoid Groove340Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5----6.35

-

1 10 Days 10Trapezoid Groove340Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5----5 ～ 12

-

1 10 Days 10Trapezoid Groove340Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5-8 ～ 10---

-

1 10 Days 10Trapezoid Groove340Shape B3.3EN 1.1191 Equiv.Black Oxide-1.510----

-

1 10 Days 10Trapezoid Groove340Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5---6.35-

-

1 10 Days 10Trapezoid Groove340Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5---5 ～ 12-

-

1 10 Days 10Trapezoid Groove440Shape B4.4EN 1.1191 Equiv.Black Oxide-2----6.35

-

1 10 Days 10Trapezoid Groove440Shape B4.4EN 1.1191 Equiv.Black Oxide-2----5 ～ 12

-

1 10 Days 10Trapezoid Groove440Shape B4.4EN 1.1191 Equiv.Black Oxide-2-8 ～ 10---

-

1 10 Days 10Trapezoid Groove440Shape B4.4EN 1.1191 Equiv.Black Oxide-210----

-

1 10 Days 10Trapezoid Groove440Shape B4.4EN 1.1191 Equiv.Black Oxide-2---6.35-

-

1 10 Days 10Trapezoid Groove440Shape B4.4EN 1.1191 Equiv.Black Oxide-2---5 ～ 12-

-

1 10 Days 10Trapezoid Groove540Shape B5.5EN 1.1191 Equiv.Black Oxide-2.5--10--

-

1 10 Days 10Trapezoid Groove540Shape B5.5EN 1.1191 Equiv.Black Oxide-2.5----6.35

-

1 10 Days 10Trapezoid Groove540Shape B5.5EN 1.1191 Equiv.Black Oxide-2.5----5 ～ 20

-

1 10 Days 10Trapezoid Groove540Shape B5.5EN 1.1191 Equiv.Black Oxide-2.5-8---

-

1 10 Days 10Trapezoid Groove540Shape B5.5EN 1.1191 Equiv.Black Oxide-2.5-8 ～ 15---

-

1 10 Days 10Trapezoid Groove540Shape B5.5EN 1.1191 Equiv.Black Oxide-2.510----

-

1 10 Days 10Trapezoid Groove540Shape B5.5EN 1.1191 Equiv.Black Oxide-2.5---6.35-

-

1 10 Days 10Trapezoid Groove540Shape B5.5EN 1.1191 Equiv.Black Oxide-2.5---5 ～ 20-

-

1 10 Days 10Trapezoid Groove345Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5--10--

-

1 10 Days 10Trapezoid Groove345Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5----6.35

-

1 10 Days 10Trapezoid Groove345Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5----5 ～ 20

-

1 10 Days 10Trapezoid Groove345Shape B3.3EN 1.1191 Equiv.Black Oxide-1.5-8---

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Back to the Category Round Belt Pulleys, Idlers

Technical Drawing - Round Belt Track Rollers

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

Specification Tables - Round Belt Track Rollers

Part NumberBelt RadiusRShaft Bore Specification, I.D. SelectionD1D2hWTLℓDmApplicable Belt
Dia.		Unit Price
1mm IncrementSelectionMBRDF
MBRF		MBRDFM
MBRFM		MBRDFA
MBRFA		MBRD
MBR		MBRDM
MBRM		MBRDS
MBRS		MBRDA
MBRA
TypeP.D.TrapezoidU GrooveH, P(H7)N (New JIS)C (Old JIS)
Trapezoid Groove

A Shape
MBRDF
MBRDFM
MBRDFA

B Shape
MBRD
MBRDM
MBRDS
MBRDA




U Groove

A Shape
MBRF
MBRFM
MBRFA

B Shape
MBR
MBRM
MBRS
MBRA		*1514~7--171312.2511312M32---    
*204~12221816
*308, 10, NK10322820    
*404238
201.54~12822171.53.31016316M33       
305~128, 10, NK10322720
404237       
455~208~20
(8~15)		10474220525M4
606257       
1825~12(8)-201424.41016316M34       
238, 10, NK10251920
283024
303226       
404236
455~208~20
(8~15)
NK10		10474120525M4       
485044
606256       
808276       
282.55~128, 10, NK10-30232.55.51016320M35       
405~208~20
(8~15)
NK10		10423520525M4       
485043       
505245
606255       
757770       
808275       
2835~128, 10, NK10-302236.61016320M36       
384032205M4       
485~208~20
(8~15)
NK10		10504225
505244
586052       
606254   
757769       
808274       
959789       
10010294       
5045~208~20
NK10		10
12
15		524248.81224630M4
(M5)
*1		8     - 
606252     - 
808272     - 
10010292     - 
120122112     - 
6055~208~20
NK10		10
12
15		62505111527630M4
(M5)
*1		10     - 
808270     - 
10010290     - 
120122110     - 
140142130     - 
Shaft Hole Dia. 6.35 is available for Shaft Hole Specification H and P. Values in ( ) are for Shape B.
Shaft Hole Dia. 9 is not available for Shaft Hole Specification N.
Sizes with * will be B Shaps only. *1 When shaft diameter is 15mm or more, set screw size is (M5).
For keyway dimensions, see P.1377.
Specify NK10 when Keyway + Tap with shaft bore dia. 10 and keyway width 4.0mm (height 1.8mm) is desired.

Alterations - Round Belt Track Rollers

Pulleys for Round Belts/Setscrew:Related Image
 

Basic information

Pulleys/Idlers Pulleys Number of Grooves 1-fach Product Type Pulley (No Bearing)

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1,257Suggestion of an applicable part number.

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Basic Attributes

  • Groove Shape

    • Trapezoid Groove
    • U Groove

    Clear

  • Applicable Belt Dia.(Ø)

    • 2
    • 3
    • 4
    • 5
    • 6
    • 8
    • 10

    Clear

  • Pitch Circle Dia. P.D.(Ø)

    • 15
    • 18
    • 20
    • 23
    • 28
    • 30
    • 38
    • 40
    • 45
    • 48
    • 50
    • 58
    • 60
    • 75
    • 80
    • 95
    • 100
    • 120
    • 140

    Clear

  • Pulley Type

    • Shape A
    • Shape B

    Clear

  • Nominal Width W(mm)

    • 2.2
    • 3.3
    • 4.4
    • 5.5
    • 6.6
    • 8.8
    • 11

    Clear

  • Material

    • EN 1.1191 Equiv.
    • EN 1.4301 Equiv.

    Clear

  • R(mm)

    • 1
    • 1.5
    • 2
    • 2.5
    • 3
    • 4
    • 5

    Clear

  • Belt Radius(mm)

    • 1
    • 1.5
    • 2
    • 2.5
    • 3
    • 4
    • 5

    Clear

  • NK

    • 10

    Clear

  • Shaft Bore Specifications (New JIS Keyway Hole + Tap) [N](mm)

    • 8
    • 10

     [8-20/1mm Unit(s)]

    Clear

  • Shaft Bore Specifications (Old JIS Keyway Hole + Tap) [C](mm)

    • 10
    • 12
    • 15

    Clear

  • Shaft Bore Specifications (Round Hole + Tap) [P](mm)

    • 6.35

     [4-20/1mm Unit(s)]

    Clear

  • Shaft Bore Specifications (Round Hole) [H](mm)

    • 6.35

     [4-20/1mm Unit(s)]

    Clear

  • Type

    • MBR
    • MBRA
    • MBRD
    • MBRDA
    • MBRDF
    • MBRDFA
    • MBRDFM
    • MBRDM
    • MBRDS
    • MBRF
    • MBRFA
    • MBRFM
    • MBRM
    • MBRS

    Clear

  • Surface Treatment

    • Not Provided
    • Black Oxide
    • Electroless Nickel Plating
    • Clear Anodized Aluminum

    Clear

  • Filter by CAD data type

    • 2D
    • 3D

    Clear

Filter by standard shipping days

    • All
    • 10 Days or Less

    Reset

Optional Attributes

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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