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Polyurethane Roller With Bearing (E-ROCRA20-20)

Volume Discount

MISUMI

MiSUMi Economy

MISUMI

This is an economy item, The price is cheaper than the MISUMI standard product.

Part Number

Configured Part Number is shown.

E-ROCRA20-20

Drawing/Specifications
3D Preview
Part Numbers
More Information

Product overview

By sintering urethane onto the outer circumference of the core material, a urethane molded bearing roller with high bonding strength is formed, making it a roller suitable for transporting and sliding various workpieces.

Product feature

Feature 1: The polyurethane layer is directly sintered onto the outer circumference of the core material, making it resistant to fall-off.
Feature 2: Urethane, with its excellent mechanical strength, is widely used to prevent scratches and cracks in fragile items such as glass and acrylic during tight transportation.
Feature 3: Urethane does not easily transmit vibration or sound.
Feature 4: Urethane has a low dust emission property. In addition, since it does not contain carbon, it is a material that is not likely to cause color transfer. (*Natural color only)
Feature 5: Rubber is effective in preventing scratches and cracks on workpieces during fastening; it also provides excellent buffer and vibration damping for impact parts, and is effective in vibration prevention.

· Characteristic table
Detailed explanation of the MISUMI polyurethane characteristic diagram

Detailed explanation of the MISUMI polyurethane characteristic diagram

Dimensional drawing

polyurethaneBearing is a non-metallic elastomer

Machining conditions for round hole and type with stop screw
Detailed specification description of avoidance processing conditions for MISUMI urethane molded roller type with bearing

Detailed specification description of avoidance processing conditions for MISUMI urethane molded roller type with bearing

· L dimension

d	Total length L dimension
d	15	20	25	30	40	50	100
8	No avoidance processing		8	8	16	16	-
10	No avoidance processing			10	10	20	-
12	No avoidance processing				12	24	24
15	No avoidance processing					15	30
20	No avoidance processing						40
25	No avoidance processing						25
30	No avoidance processing						30

When L < d × 3, straight type (no groove machining)
When L ≥ d × 3, the effective length at both ends is d × 1 (L), and grooves must be machined for the rest.
When L > d × 4, the effective length at both ends is d × 2 (L), and grooves must be machined for the rest.
※ In some cases, avoidance processing may not be performed.

Specification overview

Type			Material	Surface treatment (liner)	Bearing	Hardness
Straight type		Crowned type	Material
L dimension selection	L dimension configurable	L dimension selection	Core material
E-RORB	-	E-ROCRB	General structural steel or carbon steel	Ferroferric oxide protective film	Steel	-
E-RORM	-	E-ROCRM	General structural steel or carbon steel	Electroless nickel plating		-
E-RORS	-	E-ROCRS	austenitic stainless steel	-		-
E-RORA	-	E-ROCRA	Aluminum alloy	Clear anodized		-
E-RORKS	-	-	austenitic stainless steel	Urethane (natural color)	Steel	Shore A95
E-RORKA	-	-	Aluminum alloy			Shore A95
E-RORUS	E-ROFRUS	-	austenitic stainless steel			Shore A90
E-RORUA	E-ROFRUA	-	Aluminum alloy		Steel
E-RORGS	-	-	austenitic stainless steel			Shore A70
E-RORGA	E-ROFRGA	-	Aluminum alloy			Shore A70
E-RORHS	-	-	austenitic stainless steel			Shore A50
E-RORHA	E-ROFRHA	-	Aluminum alloy			Shore A50
E-RORTS	E-ROFRTS	-	austenitic stainless steel	Heat resistance urethane (reddish brown) Operating temperature: up to 110℃	Steel	Shore A90
E-RORTA	-	-	Aluminum alloy		Steel	Shore A90

Due to previous omissions in the translation of the hardness unit Shore A, the term 'Shore hardness' has now been officially corrected to 'Shore hardness.' Updates to electronic and printed catalogs may be delayed, so please refer to the website for the most accurate information.

Please refer to the actual product for material color. Urethane may yellow over time, but its characteristics will not change.

Urethane is sintered on the outer periphery of the core material.

This product does not guarantee the bearing brand.

· Urethane damping material color chart

Natural color

Urethane color difference, yellowing, and color change

Urethane has a discolored characteristic; the above colors are for reference only.

Specification table

Type				D	L												d	D_1(H7)	dh	B	Used bearing
Type			No.	D	Size selection											Dimension specification Specified unit 1 mm	d	D_1(H7)	dh	B	Used bearing
L dimension selection type Straight type E-RORB E-RORM E-RORS E-RORA E-RORKS E-RORKA E-RORUS E-RORUA E-RORGS E-RORGA E-RORHS E-RORHA E-RORTS E-RORTA	L dimension selection crowned type E-ROCRB E-ROCRM E-ROCRS E-ROCRA	L dimension configurable straight type E-ROFRUS E-ROFRUA E-ROFRGA E-ROFRHA E-ROFRTS	(20)	20	15	20	25	30	40	50						-	6	15	10	5	696ZZ×2
			25	25		20	25	30	40	50	60	70	80	90	100	21–49	6	15	10	5	696ZZ×2
			30	30		20	25	30	40	50	60	70	80	90	100	21–49	8	19	15	6	698ZZ×2
			35A	35			25	30	40	50						26–49	8	22	15	7	608ZZ×2
			35	35			25	30	40	50	60	70	80	90	100		10	22	18	6	6900ZZ×2
			40A	40			25	30	40	50							10	26	18	8	6000ZZ×2
			40	40			25	30	40	50	60	70	80	90	100		12	28	24	8	6001ZZ×2
			50A	50			25	30	40	50						26–99	12	32	24	10	6201ZZ×2
			50	50			25	30	40	50	60	70	80	90	100	26–99	15	32	28	9	6002ZZ×2

D20 is only applicable to core material types (E-RORB, E-RORM, E-RORS, E-RORA, E-ROCRB, E-ROCRM, E-ROCRS, E-ROCRA).

Some dimensions may not be fully specified; please take note.

For E-ROCRB/E-ROCRM/E-ROCRS/E-ROCRA models with D40 or 40 A, the maximum L is 50.

Over time, urethane may become discolored, but this does not affect its characteristic or performance.

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.

CAD Download

: 30; 45; 60

Part Number
E-ROCRA20-20

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	O.D. (mm)	Material	Inner Dia. d (mm)	Surface Treatment	Urethane/Rubber Material	Urethane/Rubber Hardness	Urethane/Rubber Color	Length L (mm)	No.	Bearing I.D. (φ)
	MYR 58.72	1 Piece(s)	Available	9 Day(s) or more	20	[Aluminum] Aluminum Alloy	6	Clear anodized	-	-	None	20	20	6

Application example

Detailed example of MISUMI urethane roller transmission mechanism

Mechanism name: pallet vertical transfer mechanism
Mechanism function:
Lifts the workpiece on the conveyor and changes the conveying direction.
Function of urethane roller:
Receives the workpiece transferred by the motor roller. The urethane layer coating protects the workpiece from damage.
For more details, please click

No.000216 pallet vertical transfer mechanism

Basic Information

Bearing Material	Steel

Please check the type/dimensions/specifications of the part E-ROCRA20-20 in the Polyurethane Roller With Bearing series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Urethane/Rubber Material
- Heat resistance urethane
- Urethane
Clear
Urethane/Rubber Hardness
Shore A50

Shore A70

Shore A90

Shore A95
Clear
type
- E-ROCRA
- E-ROCRB
- E-ROCRM
- E-ROCRS
- E-ROFRGA
- E-ROFRHA
- E-ROFRTS
- E-ROFRUA
- E-ROFRUS
- E-RORA
- E-RORB
- E-RORGA
- E-RORGS
- E-RORHA
- E-RORHS
- E-RORKA
- E-RORKS
- E-RORM
- E-RORS
- E-RORTA
- E-RORTS
- E-RORUA
- E-RORUS
Clear
O.D.(mm)
20

25

30

35

40

50
Clear
Material
- Steel
  - General structural steel or carbon steel
- Aluminum
  - Aluminum Alloy
- Stainless Steel
  - Austenitic stainless steel
Clear
Inner Dia. d(mm)
6

8

10

12

15
Clear
Surface Treatment
- Clear anodized
- Electroless nickel plating
- Ferroferric oxide protective film
- Heat resistance urethane (reddish brown)
- None
- Urethane (natural color)
Clear
Urethane/Rubber Color
- Natural color
- None
- Red-brown
Clear
Length L(mm)
15

20

25

30

40

50

60

70

80

90

100
Clear
No.
20

25

30

35

35A

40

40A

50

50A
Clear
Bearing I.D.(φ)
- 6
- 8
- 10
- 12
- 15
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

7 Day(s) or Less

9 Day(s) or Less

15 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Products like this...

Part Number
E-ROCRA20-15
E-ROCRA20-25
E-ROCRA20-30
E-ROCRA20-40
E-ROCRA20-50
E-ROCRA25-20

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	O.D. (mm)	Material	Inner Dia. d (mm)	Surface Treatment	Urethane/Rubber Material	Urethane/Rubber Hardness	Urethane/Rubber Color	Length L (mm)	No.	Bearing I.D. (φ)
MYR 58.72	1 Piece(s)	Available	9 Day(s) or more	20	[Aluminum] Aluminum Alloy	6	Clear anodized	-	-	None	15	20	6
MYR 58.72	1 Piece(s)	Available	9 Day(s) or more	20	[Aluminum] Aluminum Alloy	6	Clear anodized	-	-	None	25	20	6
MYR 74.38	1 Piece(s)	Available	9 Day(s) or more	20	[Aluminum] Aluminum Alloy	6	Clear anodized	-	-	None	30	20	6
MYR 74.38	1 Piece(s)	Available	9 Day(s) or more	20	[Aluminum] Aluminum Alloy	6	Clear anodized	-	-	None	40	20	6
MYR 74.38	1 Piece(s)	Available	9 Day(s) or more	20	[Aluminum] Aluminum Alloy	6	Clear anodized	-	-	None	50	20	6
MYR 66.06	1 Piece(s)	Available	9 Day(s) or more	25	[Aluminum] Aluminum Alloy	6	Clear anodized	-	-	None	20	25	6

Additional Products in this Category

Tech Support

: Technical Inquiry

About the characteristics of MISUMI urethane, rubber, and sponge		Click urethane, rubber, and sponge characteristic table.
About MISUMI urethane and rubber material selection		Click urethane and rubber material selection table.
Anti-rust performance and maintenance of metal material and surface treatment		Click anti-rust performance and maintenance of metal material and surface treatment.

Resin collar standard type	With polyurethane stopper bolt, straight type	Polyurethane molded bearing, inner wheel protruded, heavy-duty type

Representative code: CLJJ10-16-20.0	Representative code: UST8-40	Representative code: UMRHW40
Advantage: Inner and outer diameter and height are optional, more competitive price	Suitable for transmission of heavy workpieces; compact tip, usable in narrow spaces	Suitable for transmission of heavy-duty workpieces. Suitable for transmission of heavy-duty workpieces.

Electronic		Automotive

Mobile Phone		Semiconductor

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Polyurethane Roller With Bearing (E-ROCRA20-20)

Part Number

Basic Information

Configure

Specification/Dimensions

Urethane/Rubber Material

Urethane/Rubber Hardness

type

O.D.(mm)

Material

Inner Dia. d(mm)

Surface Treatment

Urethane/Rubber Color

Length L(mm)

No.

Bearing I.D.(φ)

CAD

Days to Ship

Specify Alterations

Products like this...

Additional Products in this Category

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Newly manufactured polyurethane	Yellowed polyurethane