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#CODE
- Discontinued Products
Conveyor Bearings - Light load.
- 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.
Part Number
Configured Part Number is shown.
・Materials
[ ! ]The structure of D20 to D35 is single layer (only for tire section).
| [ M ]Material | |
| Tire Section | Thermoplastic Ether Type Urethane (Black, Shore A95) |
| Wheel Section | Thermoplastic Lactone Type Urethane (Black) |
| Bearing | Outer Ring, Inner Ring, Balls: 52100 Bearing Steel |
| Shield: Rubber |
Specifications
| Part Number |
| UMRW40 UMRHV55 |
■For Light Load
[ ! ]( ) of d1 dimension is applicable to UMRR.
kgf=Nx0.101972
| Part Number | d | d Tolerance | d1 | B | B1 | W1 | W2 | Allowable Load N (Reference Value) | Mass (g) | ||||
| Type | D | UMRW, UMRV | UMRR | UMRW | UMRV | UMRR | |||||||
| UMRW (Both Sides Protruded) UMRV (One Side Protruded) UMRR (No Protrusion) | 20 | 6 | 0 - 0.02 | 0 - 0.008 | 8.6 | 8 | 5 | 11 | 9.5 | 55 | 7 | 6 | 5 |
| 25 | 9.3 | 9 | 6 | 12 | 10.5 | 79 | 12 | 11 | 10 | ||||
| 30 | 8 | 0 - 0.04 | 12 | 11 | 7 | 15 | 13 | 108 | 21 | 19 | 17 | ||
| 35 | 147 | 24 | 22 | 20 | |||||||||
| 40 | 10 | 14 | 12 | 8 | 16 | 14 | 196 | 34 | 32 | 30 | |||
| 45 | 12 | + 0.005 - 0.012 | 18.3 (16.8) | 14 | 10 | 18 | 16 | 245 | 60 | 55 | 50 | ||
| 50 | 274 | 66 | 61 | 56 | |||||||||
| 55 | 15 | 21.6 (20.0) | 15 | 11 | 19 | 17 | 314 | 82 | 76 | 70 | |||
| 60 | 343 | 90 | 83 | 77 | |||||||||
| 65 | 17 | 24.6 (23.0) | 16 | 12 | 20 | 18 | 392 | 120 | 112 | 104 | |||
| 70 | 441 | 130 | 121 | 113 | |||||||||
| 75 | 20 | 0 - 0.01 | 29.3 (27.6) | 18 | 14 | 22 | 20 | 510 | 188 | 175 | 164 | ||
| 80 | 589 | 199 | 187 | 176 | |||||||||
kgf=Nx0.101972
Price list
■Volume Discount Rate ([ ! ]Round down to nearest one cent.) P.89
[ ! ]For orders larger than indicated quantity, please request a quotation.
| Quantity | 1~49 | 50~74 | 75~99 | 100~199 |
| Discount Rate | Unit Price | 5% | 15% | 30% |
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.
Loading...
| Part Number |
|---|
| UMRR55 |
| UMRR60 |
| UMRV55 |
| UMRV60 |
| UMRW55 |
| UMRW60 |
Loading...
Example
Support Information
Hardness Guide
| Hardness | Example | ||
|---|---|---|---|
| Shore A95 | Golf Ball |  | Hard |
| Shore A90 | Baseball | ||
| Shore A70 | Softball | ||
| Shore A50 | Plastic Eraser | ||
| Shore A30 | Bicycle Inner Tube | Soft |
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
| Material | Description |
|---|---|
| Urethane | Excels 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 Elastic | Excels 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:
| Weak |  | Strong | ||||||
|---|---|---|---|---|---|---|---|---|
| Mechanical Strength | Silicone | Low Elastic | Butyl | Ethylene | Nitrile | Fluorine | Chloroprene | Urethane |
| Weather Resistance | Nitrile | Low Elastic | Chloroprene | Urethane | Butyl | Silicone | Ethylene | Fluorine |
| Abrasion Resistance | Silicone | Low Elastic | Butyl | Ethylene | Chloroprene | Urethane | Nitrile | Fluorine |
| Heat Resistance | Low Elastic | Urethane | Nitrile | Chloroprene | Butyl | Ethylene | Silicone | Fluorine |
| Oil Resistance | Butyl | Ethylene | Silicone | Chloroprene | Urethane | Low Elastic | Nitrile | Fluorine |
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
| Use | Sideways | Over | Under | Diagonal |
|---|---|---|---|---|
 |  |  |  | |
| Recommended Products | Press-fit bearing | Press-fit bearing | Lightweight: 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 |
Specification/Dimensions
-
Mounting Style
- Shaft Mount
- Shaft Mount
-
Outer Diameter D(Ø)
-
Width B(mm)
-
I.D. d(Ø)
-
Allowable Load(N)
-
Protruded Inner Wheel
- Both Sides Protruding Type
- No Protrusion Type
- One Side Protruding Type
-
type
- UMRR
- UMRV
- UMRW
-
Allowable Load Range(N)
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- Same day
- 8 Days or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Additional Products in this Category
- Conveyor Bearings - Threaded shaft.
- Conveyor Bearings - Urethane/silicone/rubber covered, R type.
- Conveyor Bearings - Engineering plastic, flat type, threaded stud.
- Conveyor Bearings - Engineering plastic, flat type with bracket.
- Conveyor Bearings - Engineering plastic, U groove, straight bore.
- Conveyor Bearings - Engineering plastic, V groove, threaded bore.
- Conveyor Bearings - Engineered plastic, flanged on one edge, and threaded stem.
- Conveyor Bearings - Acetal resin, DR-B type.
Complementary Products
-
Conveyor Bearings - Urethane/silicone rubber covered, flat type.
MISUMI Days to Ship : Same day or more
MISUMI Unit Example related to this product
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.
- Technical Inquiry
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