Urethane Molded Rollers With Bearings
Brand :
MISUMI
Caution
Product Description
This is an economy item, The price is cheaper than the MISUMI standard product.
Product Overview
Polyurethane is sintered onto the outer circumference of the core material to form a high-adhesion coated layer, creating a bearing-type roller suitable for transporting and sliding various workpieces.
Dimensional Drawing

The core material has no surface treatment.
Bearing material: SUJ2.
Polyurethane is ether-based polyurethane.
(dh) size is for reference only.| Type | Bushing | Core Material | Bearing Material | |||
Material | Hardness | Color | Material | Surface Treatment | ||
| C-RORUS | Ether-based polyurethane | Shore A90 | Green | Stainless steel | No | SUJ2 |
| C-RORUA | Aluminum alloy | |||||
| C-RORGS | Shore A70 | Black | Stainless steel | |||
| C-RORGA | Aluminum alloy | |||||
| C-RORSA | Silicone | Shore A70 | Light gray | Aluminum alloy | ||
| C-RORNA | NBR | Shore A60 | Black | Aluminum alloy | ||
Specification Table
| Type | Length L Selection | d | D1 | (dh) | B | Nominal bearing model | Number of bearings | ||||||
Type | Outer Diameter D | ||||||||||||
| C-RORUS C-RORUA C-RORGS C-RORGA C-RORSA C-RORNA | 25 | 20 | (25) | 30 | 40 | 50 | 6 | 15 | 10 | 5 | 696ZZ | 2 | |
| 30 | 20 | (25) | 30 | 40 | 50 | 8 | 19 | 15 | 6 | 698ZZ | |||
| 35 | (25) | 30 | 40 | 50 | 10 | 22 | 18 | 6900ZZ | |||||
| 40 | (25) | 30 | 40 | 50 | 100 | 12 | 28 | 24 | 8 | 6001ZZ | |||
| 50 | (25) | 30 | 40 | 50 | 100 | 15 | 32 | 28 | 9 | 6002ZZ | |||
(25) Applicable only to C-RORSA/C-RORNA.
(dh) Dimensions are not machined because the core material is extruded tubing. For reference dimensions only.
Please refer to the actual product for material color.
Polyurethane is sintered on the outer periphery of the core material.
For detailed bearing dimensions, please refer to
(Economy Type) Small Diameter Double Shielded Ball Bearings.
(Economy Type) Deep Groove Double Shielded Ball Bearings.
No surface treatment on the core material.
Bearing material: SUJ2. Product Features
Feature 1: The polyurethane layer is directly sintered onto the outer circumference of the core material, making it difficult to peel off.
Feature 2: Thanks to its excellent mechanical strength and wear resistance, polyurethane is widely used to prevent scratches and cracks when transporting fragile items such as glass and acrylic.
Feature 3: Compared to metal rollers, polyurethane rollers are less likely to transmit vibrations and noise.
Feature 4: Polyurethane has low dust generation.
Feature 5: Using ether-based polyurethane, it maintains high mechanical strength and wear resistance, while offering better hydrolysis resistance and lower environmental requirements compared to ester-based polyurethane.

*1 Radial runout is a reference value and not a guaranteed value.
■ Solving your concerns when selecting coated rollers

*Market-available products refer to similar items randomly purchased by our company from online or offline markets.
■ Characteristics Table

Feature 2: Thanks to its excellent mechanical strength and wear resistance, polyurethane is widely used to prevent scratches and cracks when transporting fragile items such as glass and acrylic.
Feature 3: Compared to metal rollers, polyurethane rollers are less likely to transmit vibrations and noise.
Feature 4: Polyurethane has low dust generation.
Feature 5: Using ether-based polyurethane, it maintains high mechanical strength and wear resistance, while offering better hydrolysis resistance and lower environmental requirements compared to ester-based polyurethane.

*1 Radial runout is a reference value and not a guaranteed value.
■ Solving your concerns when selecting coated rollers

*Market-available products refer to similar items randomly purchased by our company from online or offline markets.
■ Characteristics Table

Precautions
(1) The economical polyurethane roller uses ether-based polyurethane, which is resistant to hydrolysis and has lower environmental requirements. However, since the bearing position is made of SUJ2 material, rust prevention is still necessary.
(2) Please refer to the actual product for material color.
(3) The (dh) dimension is for reference only, as the core material is extruded tubing and is not machined. For reference dimensions only.
(4) For dimensions on the drawing without specified tolerances, general tolerances (medium grade) are applied.
(2) Please refer to the actual product for material color.
(3) The (dh) dimension is for reference only, as the core material is extruded tubing and is not machined. For reference dimensions only.
(4) For dimensions on the drawing without specified tolerances, general tolerances (medium grade) are applied.
Example of Use

Mechanism name: Pallet Vertical Transfer Mechanism
Function of the mechanism:
Lifts the workpiece on the conveyor and changes the conveying direction.
Function of the polyurethane roller:
Receives the workpiece delivered by the motorized roller. Protects the workpiece from damage with a coated polyurethane layer.
For more details, please click
No.000216 Pallet Vertical Transfer Mechanism
Function of the mechanism:
Lifts the workpiece on the conveyor and changes the conveying direction.
Function of the polyurethane roller:
Receives the workpiece delivered by the motorized roller. Protects the workpiece from damage with a coated polyurethane layer.
For more details, please click
No.000216 Pallet Vertical Transfer MechanismApplication Industries
| Electronics | Automotive | |
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| Smartphones | Semiconductors | |
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Related Products
| Resin Collar Standard Type | Straight Rod Type with Urethane Stopper Bolt | Urethane Molded Bearing, Protruding Inner Ring, Heavy-Duty Type | ||
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| Representative Model: CLJJ10-16-20.0 | Representative Model: UST8-40 | Representative Model: UMRHW40 | ||
| Advantages: Selectable inner and outer diameters and height, more competitive price | Suitable for conveying heavy workpieces with a compact front end; can be used in narrow spaces | Suitable for conveying heavy workpieces |
Material
Hardness
Surface Treatment
Length L Selection
Type
Outer Diameter D





