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Conveyor Bearings - Light load. (UMRW45)

Conveyor Bearings - Light load. UMRW45
  • Volume Discount
  • New Pricing
  • Lead Time Reduction

•Type: Flat Type
•Operating Environment: Standard
•Operating Temperature Range (?): -20::40
•Surface Material: Thermoplastic Ether Urethane

  • inCAD Components

(i)Caution

  • Models UMRW65, UMRW70, UMRW75, UMRW80, UMRV65, UMRV70, UMRV75, UMRV80, UMRR65, UMRR70, UMRR75, UMRR80 are scheduled to be discontinued. Orders will be accepted until November 2022. e apologize any further inconvenience, for more assistance, please contact us.
Urethane Molded Bearings - Extended Inner Race (for Light Load):Related Image
・Materials
[ M ]Material
Tire SectionThermoplastic Ether Type Urethane (Black, Shore A95)
Wheel SectionThermoplastic Lactone Type Urethane (Black)
BearingOuter Ring, Inner Ring, Balls: 52100 Bearing Steel
Shield: Rubber
[ ! ]The structure of D20 to D35 is single layer (only for tire section).

Specifications

Part Number
UMRW40
UMRHV55
■For Light Load
Part Numberdd Toleranced1BB1W1W2Allowable Load N (Reference Value)Mass (g)
TypeDUMRW, UMRVUMRRUMRWUMRVUMRR
UMRW
(Both Sides Protruded)

UMRV
(One Side Protruded)

UMRR
(No Protrusion)
2060
- 0.02
0
- 0.008
8.685119.555765
259.3961210.579121110
3080
- 0.04
121171513108211917
35147242220
4010141281614196343230
4512+ 0.005
- 0.012
18.3
(16.8)
14101816245605550
50274666156
551521.6
(20.0)
15111917314827670
60343908377
651724.6
(23.0)
16122018392120112104
70441130121113
75200
- 0.01
29.3
(27.6)
18142220510188175164
80589199187176
[ ! ]( ) of d1 dimension is applicable to UMRR.
kgf=Nx0.101972

Price list

Volume Discount Rate ([ ! ]Round down to nearest one cent.) P.89
Quantity1~4950~7475~99100~199
Discount RateUnit Price5%15%30%
[ ! ]For orders larger than indicated quantity, please request a quotation.

Part Number 

CAD Data download and 3D preview are not available because the part number has not yet been determined.

  • *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
  • Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
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Part Number
UMRW45
Part NumberMinimum order quantityVolume DiscountDays to Ship Mounting Style Outer Diameter D
(Ø)
Width B
(mm)
I.D. d
(Ø)
Allowable Load Range
(N)
Allowable Load
(N)
Protruded Inner Wheel
1 Piece(s)Available

8 Days or more

[Shaft Mount] Inner Wheel Both Sides Protruding Type451412200.1~300.0245Both Sides Protruding Type

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  1. 1

Example

Urethane Molded Bearings - Extended Inner Race (for Light Load):Related Image

Support Information

Hardness Guide

HardnessExample
Shore A95Golf BallHard
Shore A90Baseball
Shore A70 Softball
Shore A50Plastic Eraser
Shore A30Bicycle Inner TubeSoft

Hardness tolerance range: ±5 of the indicated value.

Material Characteristics

It is important to select the right material according to your application, the different materials we handle within the catalog are

MaterialDescription
UrethaneExcels in mechanical strength. Weak in heat and chemical resistance. Wide range of hardness variations.
Nitrile (NBR)Excels in abrasion resistance and oil resistance, and economical. Inferior in weather resistance. Avoid using in areas where it may be exposed to direct sunlight or around ozone-generating electrical devices.
Chloroprene (CR)Well-balanced in properties and economical.
Ethylene (EPDM)Excels in weather resistance and economical. Inferior in oil resistance and fire resistance.
Butyl (IIR)Excels in weather resistance and airtightness. Suited for inner tube of air tire. Inferior in oil resistance and fire resistance.
Fluorine (FPM)Excels in most properties.
Silicone (SI)Excels in heat resistance. Inferior in mechanical strength.
Low ElasticExcels in shock absorption and oil resistance. Inferior in heat resistance and low temperature resistance.

Comparison between Materials

The following is a comparison of the resistance of the materials:

WeakStrong
Mechanical StrengthSiliconeLow ElasticButyl EthyleneNitrileFluorineChloropreneUrethane
Weather ResistanceNitrileLow ElasticChloropreneUrethaneButylSiliconeEthyleneFluorine
Abrasion ResistanceSiliconeLow ElasticButylEthyleneChloropreneUrethaneNitrileFluorine
Heat ResistanceLow ElasticUrethaneNitrileChloropreneButylEthyleneSiliconeFluorine
Oil ResistanceButylEthyleneSiliconeChloropreneUrethaneLow ElasticNitrileFluorine

Precautions

Urethane will change color and turn yellow over time.

Particularly antistatic urethane (gray color) may undergo noticeable discoloration, but, without physical problems and maintaining its properties.

The process of discoloration over time is shown below. Please consider this before use.

*Time and level of discoloration varies greatly depending on the environment of use, etc.

Before Changing After Changing

Way to Use

UseSidewaysOverUnderDiagonal
Recommended ProductsPress-fit bearingPress-fit bearingLightweight: Press-fit bearings
Heavyweight: Molded bearings
Molded bearing

[!] The bearing urethane might come loose even if the bearing is used upward, sideways or downward, the bearing urethane can come loose. It happened because an unbalanced load is applied due to mounting accuracy, balancing of the workpiece, or it is used at high rotational speeds.

Way to Use

Heavy Load Bearings

  • As the bearing inner rings protrude, there is no need to combine stepped shafts or collars for mounting.
  • The bearings used have special configuration to prevent the urethane from detaching
  • Though it excels in oil resistance, applying solvents may cause swelling and reduction in strength.

Compatible Models

 

Basic Information

Type Flat Type Surface Material Thermoplastic Ether Urethane Operating Environment Standard (for Light Load)
Operating Temperature Range(℃) -20::40

Please check the type/dimensions/specifications of the part UMRW45 in the Conveyor Bearings - Light load. series.

Products like this...

Part Number
UMRR35
UMRR40
UMRR45
UMRW50
UMRW55
UMRW60
Part NumberMinimum order quantityVolume DiscountDays to Ship Mounting Style Outer Diameter D
(Ø)
Width B
(mm)
I.D. d
(Ø)
Allowable Load Range
(N)
Allowable Load
(N)
Protruded Inner Wheel
1 Piece(s)Available

8 Days or more

[Shaft Mount] Inner Wheel Non-Protruding Type35118100.1~200.0147No Protrusion Type
1 Piece(s)Available

8 Days or more

[Shaft Mount] Inner Wheel Non-Protruding Type401210100.1~200.0196No Protrusion Type
1 Piece(s)Available

8 Days or more

[Shaft Mount] Inner Wheel Non-Protruding Type451412200.1~300.0245No Protrusion Type
1 Piece(s)Available

Same day

Stock

[Shaft Mount] Inner Wheel Both Sides Protruding Type501412200.1~300.0274Both Sides Protruding Type
1 Piece(s)Available

8 Days or more

[Shaft Mount] Inner Wheel Both Sides Protruding Type551515300.1~500.0314Both Sides Protruding Type
1 Piece(s)Available

8 Days or more

[Shaft Mount] Inner Wheel Both Sides Protruding Type601515300.1~500.0343Both Sides Protruding Type

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Tech Support

Technical Support
Tel:+52-442-672-7661 ext. 2 then wait and dial 4
E-mail: soportetecnico@misumimex.com
Mon. - Fri. 8 a.m. - 6 p.m.