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Rubber-coated Rollers with Keyway (E-ROUAK30-15-30)

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
■ Straight Cylindrical Type■ Threaded Hole Type■ Keyway dimensions
polyurethaneBearing is a non-metallic elastomerDetailed specifications of keyway dimensions for MISUMI polyurethane roller thickness selection type with bearing
When L ≤ d × 3, the d hole is machined from a single direction.
When L>d × 3, the d hole is machined from both sides, as shown in the diagram above. In some cases, there may be no clearance machining.
There are different machining processes for the keyway, so the appearance of the keyway hole may vary.
Specification Overview
  Material Hardness
Straight CylindricalThreaded HoleCore MaterialLining
E-ROUAKE-ROUAKNAluminum alloyPolyurethane (green)Shore A90
E-ROGAKE-ROGAKNPolyurethane (black)Shore A70
Due to previous omissions in translating the hardness unit Shore A, the term 'Xiao's hardness' has now been officially corrected to 'Shore hardness.' Updates to electronic and printed catalogs may be delayed; please refer to the website for the most accurate information.
Specification Table
Part NumberdH8
selection
L
selection
TM
TypeD
Straight Cylindrical
E-ROUAK
E-ROGAK
Threaded Hole
E-ROUAKN
E-ROGAKN
208     1520253040506070809010033
2581012   15202530405060708090100
308101215  15202530405060708090100
35 10121520  202530405060708090100
40 10121520  2025304050607080901004
50  12152025  2530405060708090100
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: Compared to metal rollers, polyurethane rollers are less likely to transmit vibration and noise.
Feature 3: Polyurethane has low dust generation.
Feature 4: The hardness can be easily identified by the color of the polyurethane (green: A90; black: A70), and it does not experience the yellowing phenomenon that occurs with natural-colored polyurethane.
Precautions
(1) The economical polyurethane roller uses ether-based polyurethane, which is resistant to hydrolysis and can be used in slightly humid environments.
(2) Please refer to the actual product for material color.
(3) For dimensions without specified tolerances in the drawing, general tolerances apply.
Example of Use
Detailed case studies of MISUMI polyurethane roller transfer mechanisms
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
Application Industries
Electronics Automotive
Widely used in the manufacturing of electronic and electrical products, with high acceptance. Shafts for urethane mold bearing Commonly used in the automotive industry and other industrial fields such as automobile manufacturing. Engineering plastics bearing
Smartphones Semiconductors
Widely used in fields such as smartphones and well received by the public. Guide rollers Widely used and highly praised in the semiconductor industry, semiconductor field, and semiconductor equipment. Conveyor rollers, press wheels with bearings type
Related Products
Economy Type Molded Roller with Bearing Economy Type Guide Roller, Vertical Economy Type Pipe Roller with Bearing
Detailed specifications for resin shaft rings Specifications for straight rod type with polyurethane stop bolt Detailed specifications for heavy-duty polyurethane molded bearings with protruding inner wheel
Representative Model: C-RORUA25-30 Representative Model: E-TGRAU30-30 Representative Model: E-RORLAG20-T3-6-200

Part Number 

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Part Number
E-ROUAK30-15-30
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipO.D.
(mm)
Inner Dia. d
(mm)
Urethane/Rubber Color Length L
(mm)
No. Type

MYR 79.78

1 Piece(s)Available 12 Day(s) 3015Green30A90Straight Cylindrical

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Basic Information

Mounting Method With Keyway Roller Type Urethane / Rubber Roller Material Aluminum Alloy
Roller Shape Straight Urethane Rubber Processing Lining Urethane/Rubber Material Polyurethane

Please check the type/dimensions/specifications of the part E-ROUAK30-15-30 in the Rubber-coated Rollers with Keyway series.

Frequently asked question (FAQ)

Question: Are there significant differences in hardness and wear resistance between the economy polyurethane rollers and existing MISUMI products?
Answer: For the economical polyurethane roller, the polyurethane lining does not use a hardener to adjust hardness; instead, raw materials of the corresponding hardness are purchased directly. Laboratory tests under the same conditions have shown that the hardness is stable with minimal deviation, and the wear resistance is almost at the same level as the economical product.
Question: There is a large color variation in natural-colored polyurethane. Is it possible to make the color uniform?
Answer: The economical polyurethane roller can be easily identified by the color of the polyurethane (green: A90; black: A70) to distinguish hardness, and it does not experience the yellowing phenomenon seen in natural color polyurethane.
Question: Can polyurethane be wiped with alcohol?
Answer: Yes, but only a small amount of alcohol should be used for wiping.
Polyurethane is a material that is not resistant to chemicals and is easily corroded. You can apply a small amount of alcohol and wipe it dry as soon as possible or let it air dry. Other highly corrosive chemicals should not be applied, even in small amounts.
Question: As the hardness of polyurethane increases, does the friction also increase?
Answer: No, polyurethane is an elastomer. In fact, the lower the hardness, the higher the friction.

Check other FAQ (1 items) Hide

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