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Hollow Rollers with Set Screw Hole (Part Numbers)
Part Number
Configured Part Number is shown.
Product overview
Hollow roller suitable for the transportation and sliding of various workpieces. You can choose only the core material, or select products with a urethane layer sintered on the surface.
Product feature
Feature 1: The core material uses drawn profile, achieving lightweight while better controlling the price.
Feature 2: Urethane sintered products, based on excellent mechanical strength, are widely used to prevent scratches and cracks on fragile items such as glass and acrylic during tight transportation.
Feature 3: Urethane is sintered onto the surface of the core material, providing higher polyurethane adhesion compared to press-fit bonded products, making it more suitable for usage scenarios with heavy axial load.
Feature 3: Urethane sintering type products are not prone to transmitting vibration and 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: Various hardness options are available depending on the usage scenario.
Allowable range of hardness: equivalent to +/-5
Only Shore A50 to 95 hardness is included in this series product
Feature 2: Urethane sintered products, based on excellent mechanical strength, are widely used to prevent scratches and cracks on fragile items such as glass and acrylic during tight transportation.
Feature 3: Urethane is sintered onto the surface of the core material, providing higher polyurethane adhesion compared to press-fit bonded products, making it more suitable for usage scenarios with heavy axial load.
Feature 3: Urethane sintering type products are not prone to transmitting vibration and 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: Various hardness options are available depending on the usage scenario.
| Hardness | Equivalent to |
| Shore A95 | Golf ball |
| Shore A90 | Baseball |
| Shore A70 | Softball |
| Shore A50 | Eraser |
| Shore A30 | Bicycle inner tube |
| Shore A15 | Konjac jelly |
Allowable range of hardness: equivalent to +/-5Only Shore A50 to 95 hardness is included in this series product· Reference: Bending test for products of various hardness
· Test conditions
Apply a 5 N load (tensile) using a tensiometer
| Material | Standard urethane |
| Thickness | 5 mm |
| Width | 30 mm |
| Length | 40 mm |
Apply a 5 N load (tensile) using a tensiometerDimensional drawing
The outer diameter of this product is D+2T. (Different from other rollers)
The outer diameter of this product is D+2T. (Different from other rollers)Specification overview
| Type |  Material |  Surface treatment(liner) |  Hardness | L length |
| Core material | ||||
| E-ROLNLA | Aluminum alloy | Clear anodized | - | 100–500 |
| E-ROLNAU | Urethane (natural color) | Shore A90 | ||
| E-ROLNAG | Shore A70 | |||
| E-ROLNAH | Shore A50 | |||
| E-ROLNLM | General structural steel or carbon steel | Electroless nickel plating | - | |
| E-ROLNLS | austenitic stainless steel | - | - |
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.Surface treatment is sometimes not performed on the shaft end and inner diameter sections.Urethane is sintered onto the outer periphery of the core material.Since the core material is a drawing material, the d1 inner diameter may be uneven.· Urethane damping material color chart
| Natural color |
 |
Urethane has a discolored characteristic; the above colors are for reference only.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 |
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| Part Number | Minimum order quantity | Volume Discount | Days to Ship | Roller Type | Metal part outer diameter D (mm) | Material | Inner Dia. d (mm) | Urethane/Rubber Hardness | Urethane Rubber Processing | Surface Treatment | Polyurethane / Rubber Material | Polyurethane / Rubber Color | Bearing Material | Polyurethane Thickness T (mm) | L (mm) |
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Specification table
| Type | Urethane thickness T selectable |  dH9selection |  Lselection | d1 | D1 | B | M | ||
 Type |  D | Aluminum alloy | General structural steel or carbon steel Stainless steel | ||||||
| Only as core material E-ROLNLA E-ROLNLM E-ROLNLS Urethane sintering product E-ROLNAU E-ROLNAG E-ROLNAH | 30 | 3 5 10 | 8 | 100 150 200 250 300 350 400 450 500 | 15 | 15.8 (18) | 22 | 10 | M4 |
| 10 | |||||||||
| 12 | |||||||||
| 40 | 12 | 17 | 22.7 (22) | 33 | M4 | ||||
| 15 | M5 | ||||||||
| 20 | 22 | 22.7 (22) | M6 | ||||||
| 50 | 15 | 17 | 30 (28) | 40 | M5 | ||||
| 20 | 27 | M6 | |||||||
| 25 | |||||||||
| 60 | 20 | 22 | - | 45 | M6 | ||||
| 25 | 32 | ||||||||
| 30 | |||||||||
| 80 | 25 | 41 | - | 55 | 15 | M8 | |||
| 30 | |||||||||
| 35 | |||||||||
Material specification
| Type | Material | Surface treatment (liner) | Hardness |
| Core material | |||
| E-ROLNLA | Aluminum alloy | Clear anodized | - |
| E-ROLNAU | Urethane (natural color) | Shore A90 | |
| E-ROLNAG | Shore A70 | ||
| E-ROLNAH | Shore A50 | ||
| E-ROLNLM | General structural steel or carbon steel | Electroless nickel plating | - |
| E-ROLNLS | austenitic stainless steel | - | - |
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.Application example
Mechanism name: Washer air bubble extrusion fixture
Mechanism function:
Clamp the attached washer with a rubber roller to remove air bubbles.
Function of urethane tube:
Use a urethane piping roller to clamp and rotate, pressing the workpiece (attached washer). Because the surface is sintered with urethane, it can leave scratches on the surface of the workpiece while achieving workpiece displacement and air bubble extrusion and removal.
For more detail, please click
No.000473 Washer Air Bubble Outlet Fixture
Mechanism function:
Clamp the attached washer with a rubber roller to remove air bubbles.
Function of urethane tube:
Use a urethane piping roller to clamp and rotate, pressing the workpiece (attached washer). Because the surface is sintered with urethane, it can leave scratches on the surface of the workpiece while achieving workpiece displacement and air bubble extrusion and removal.
For more detail, please click
No.000473 Washer Air Bubble Outlet FixtureRelated industries
Related Documents
Related product
| 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, optional height, better price | Advantage: Suitable for transmission of heavy-duty workpieces, compact at the tip, usable in narrow spaces | Advantage: Suitable for transmission of heavy-duty workpieces |
Precaution
(1) Since this is a core material product and a drawn profile, the d1 inner diameter may not be flat.
(2) The shaft end and inner diameter have not undergone surface treatment.
(3) Regarding the discoloration of urethane
Urethane may darken in color by absorbing ultraviolet rays or light, a phenomenon known as yellowing. However, this does not affect its physical property. Please understand this when using the product.
(4) Urethane hydrolysis characteristics
If urethane is used for an extended period in environments containing moisture or humidity, hydrolysis will occur and cause deterioration.
In regions with high humidity, it is recommended to manage the temperature and humidity of the warehouse and operating environment to extend the product's service life.
(6) Urethane dimension change
The dimensions of urethane will change with the surrounding temperature, but the amount of change is small, and it will return to its original size after being left at room temperature for several hours.
(2) The shaft end and inner diameter have not undergone surface treatment.
(3) Regarding the discoloration of urethane
Urethane may darken in color by absorbing ultraviolet rays or light, a phenomenon known as yellowing. However, this does not affect its physical property. Please understand this when using the product.
| Newly manufactured polyurethane | Yellowed polyurethane |
 |  |
(4) Urethane hydrolysis characteristics
If urethane is used for an extended period in environments containing moisture or humidity, hydrolysis will occur and cause deterioration.
In regions with high humidity, it is recommended to manage the temperature and humidity of the warehouse and operating environment to extend the product's service life.
(5) Changes in product state after hydrolysis
· Polyurethane surface becomes sticky
· Irreversible scratch left by light pressure with a fingernail
· Polyurethane hardness decreases
· Polyurethane cracks and easily disintegrates into powder
· Polyurethane surface becomes sticky
· Irreversible scratch left by light pressure with a fingernail
· Polyurethane hardness decreases
· Polyurethane cracks and easily disintegrates into powder
| Hydrolyzed polyurethane |
 |
The dimensions of urethane will change with the surrounding temperature, but the amount of change is small, and it will return to its original size after being left at room temperature for several hours.
Basic Information
| Mounting Method | Set Screw | Length(mm) | ~100 / ~300 / ~500 | Roller Shape | Straight |
|---|
Specification/Dimensions
-
Roller Type
- Urethane / Rubber Roller
- Metal Roller
-
Metal part outer diameter D(mm)
-
Material
- Steel
- Aluminum Alloy
- Stainless Steel
- Steel
-
Inner Dia. d(mm)
-
Urethane/Rubber Hardness
-
Urethane Rubber Processing
- Liner
-
Surface Treatment
- Clear anodized
- Electroless nickel plating
- None
-
Polyurethane / Rubber Material
- Urethane
-
Polyurethane / Rubber Color
- Natural color
-
Bearing Material
- Steel
-
Polyurethane Thickness T(mm)
- 3
- 5
- 10
-
L(mm)
-
type
- E-ROLNAG
- E-ROLNAH
- E-ROLNAU
- E-ROLNLA
- E-ROLNLM
- E-ROLNLS
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 9 Day(s) 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
- Hollow Rollers with Shafts - Straight, Both Ends Tapped, Both Ends Retaining Ring Grooves (L=100~800)
- Pipe Rollers - Straight Type
- Urethane Pipe Rollers - Straight Type
- Hollow Rollers - With Bearings (L=100 ~ 500) - Urethane Baked
- Pipe Roller Economy Type - With Bearings (L=100~500) - Urethane Baked
- Urethane Pipe Rollers - with One Way Clutch
- [Clean & Pack]Metal Hollow Rollers - With Set Screw Holes (L100 to 800)
- Pipe Rollers with Bearing
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