Rollers with bearings / polyurethane layer (RORNA50-90)

Promotional pricing ends 31/12/2024
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MISUMI

Product Details:

Manufacturer part number: RORNA50-90

Brand: MISUMI

Price: 55.66 €

Delivery time: 9 Days

Technical Data:

Roller Type: Urethane, Rubber Roller

Urethane Rubber Processing: Lining

Roller Shape: Straight

[D] Outer Diameter: 50 mm

Material (Base, Core): [Aluminum] EN AW-5052 Equiv.

Part Number

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RORNA50-90

Drawing / Specifications
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Technical Drawing - Roller with Bearings

Rollers - With Bearings Urethane Lined:Related Image

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Available dimensions and tolerances can be found under the tab More Information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Roller with Bearings

Type			Material	Surface Treatment (Lining)	Bearing	Hardness
Straight		Crowned	Material
L Selectable	L Configurable	L Selectable	Core
RORB	-	ROCRB	EN 1.1191 Equiv.	Black Oxide	Steel	-
RORM	-	ROCRM	EN 1.1191 Equiv.	Electroless Nickel Plating		-
RORS	-	ROCRS	EN 1.4301 Equiv.	-		-
RORA	-	ROCRA	EN AW-5052 Equiv.	Clear Anodize		-
RORKS	-	-	EN 1.4301 Equiv.	Urethane (Natural Color)	Steel	Shore A95
RORKA	-	-	EN AW-5052 Equiv.			Shore A95
RORUS	ROFRUS	ROCRUS	EN 1.4301 Equiv.			Shore A90
RORUZ	-	-	EN 1.4301 Equiv.		Stainless Steel
RORUA	ROFRUA	ROCRUA	EN AW-5052 Equiv.		Steel
RORUP	-	-	MC Nylon
RORGS	-	ROCRGS	EN 1.4301 Equiv.			Shore A70
RORGA	ROFRGA	ROCRGA	Aluminum Alloy 5000 series			Shore A70
RORHS	-	ROCRHS	EN 1.4301 Equiv.			Shore A50
RORHA	ROFRHA	-	EN AW-5052 Equiv.			Shore A50
RORSS	ROFRSS	ROCRSS	EN 1.4301 Equiv.	Silicon Rubber (Light Gray)	Steel	Shore A70
RORSA	-	-	EN AW-5052 Equiv.			Shore A70
RORJS	-	-	EN 1.4301 Equiv.			Shore A50
RORJA	-	-	EN AW-5052 Equiv.			Shore A50
RORWS	-	-	EN 1.4301 Equiv.	Silicon Rubber (White)		Shore A70
RORTS	ROFRTS	-	EN 1.4301 Equiv.	Heat Resistant Urethane (Red Brown)		Shore A90
RORTA	-	-	EN AW-5052 Equiv.	Operating Temperature: ~ 110°C		Shore A90
RORNS	-	-	EN 1.4301 Equiv.	NBR (Black)		Shore A60
RORNA	-	-	EN AW-5052 Equiv.	NBR (Black)		Shore A60

Urethane, Silicon Rubber and NBR are baked on the roller's outer diameter.

Further specifications can be found under the tab More Information.

Composition of a Product Code - Roller with Bearings

Part Number	-	L
RORB30 ROFRSS40	- -	30 38

Alterations - Roller with Bearings

General Information - Roller with Bearings

Product assortment of roller bearings - rubberized roller bearing - rubberized roller bearing with clamping screw - rubberized roller bearing with through hole - roller bearing with foam - roller bearing with keyway - roller bearing with ball bearing - metal roller bearing - roller bearing with split rolling surface

Selection details of roller bearings

- Core material: aluminum, steel, stainless steel, plastic (POM, UHMWPE, polypropylene, MC nylon)

- Coatings: uncoated, burnished, nickel-plated, anodized

- Material surface: uncoated, polyurethane, antistatic polyurethane, heat-resistant polyurethane (~110°C), polyurethane foam, chloroprene rubber foam, silicone rubber, silicone rubber, nitrile rubber (NBR)

- Hardness: Shore A25, Shore A50, Shore A65, Shore A70, Shore A90, Shore A95

- Surface shape: cylindrical, spherical, groove (split running surface), flange on both sides, knurled

- Roller mounting: through hole, ball bearing, plain bearing bushing, threaded pin clamping, keyway, with axle shaft, lateral through holes

- Bearing material: steel, stainless steel

- Inner diameter: 3 to 40 mm

- Outer diameter: 8 to 100 mm

- Length: 50 to 1000 mm

Description/Basics

The range of applications for roller bearings is diverse in the industry. Basically, the roller bearing is used in mechanical engineering and system engineering for the transport of different objects and workpieces. They are often found in roller conveyors and the conveyance or return of fine films in the packaging industry (packaging).

MISUMI offers different roller bearing surfaces depending on the type of material being conveyed and the application. Whether a gentle rubberized roller bearing for sensitive goods has to be transported, a metal roller, or a massive roller bearing for heavy loads, the MISUMI online shop offers the appropriate roller bearing for almost any application and environmental influences.

A rubberized roller bearing can be equipped with different elastomers to withstand the requirements and influences. These can have different properties such as oil resistance, weather resistance or chemical resistance. MISUMI also offers a rubberized roller bearing with heat-resistant polyurethane (PUR) for higher temperatures.
MISUMI offers an antistatic roller bearing made of polyurethane for transporting electronic components that must be protected against static discharge via the option [UDC].Our roller bearings with foam are a special feature. Compared to conventional foams, the roller bearing with polyurethane foam has a low absorption of water, oil and chemicals. This is made possible by the closed pores of the foam. Another significant advantage of combining a roller bearing with polyurethane foam is the vibration-damping properties of the foam. Roller bearings with foam are also suitable for transporting thinner materials.
A roller bearing with chloroprene rubber foam is particularly low-return and has a high resistance to weather, aging, ozone, heat and cold. This makes it a very balanced foam that is often used in the general industry.

In addition to the materials of the tread, different geometries are also available for various purposes.
Cylindrical roller bearings are often used for roller conveyors or roller carriers.
Balled roller bearings, on the other hand, are often used in conveyor belts in combination with flat belts. The spherical shape of the roller bearing can help align the transport belt in the centre. For flat belts with guide grooves, we offer special flat belt drive wheels that centre the belt more precisely.
Cylindrical roller bearings are often used in roller conveyors or roller carriers. Balled roller bearings are on the other hand often used in conveyor belts in combination with flat belts. The balled shape of the roller bearing can help align the transport belt in the centre. For flat belts with guide grooves, we offer special flat belt drive wheels that centre the belt more precisely.

The roller bearings and metal rollers from MISUMI can be selected in numerous mounting options. In addition, MISUMI offers the roller bearing with clamping groove, plain bearing bushing, integrated axle, lateral mounting holes and keyway.
The roller bearing with keyway groove is particularly suitable in combination with a keyway and rotary axis as a driven roller bearing or conveyer roller. This PDF gives you the keyways tolerances. It is recommended selecting a keyway from MISUMI for the connection, since the tolerances are coordinated.

A roller bearing is often also used in combination with ball bearings. The load capacity depends on the bearing used. The roller bearings with ball bearings are characterized by good smoothness. You can find which bearing was used for the metal roller with ball bearing under the tab More Information.

Rollers with larger outer diameters can also be found under our pipe rollers.

Application Examples - Roller with Bearings

Application example: stack sorter - rubberized roller bearing - roller bearing driven - drive roller - plastic plate

Application example: stack sorter
(1) Roller bearing rubberized, (2) workpiece, (3) plastic plate

Application example: belt feed - roller bearing with split rolling surface - roller bearing with groove - roller bearing rubberized - belt conveyor roller

Application example: belt conveyor
(1) Belt, (3) split roller bearing (groove), (3) roller bearing

Application example: roller conveyor - roller bearing metal - roller bearing plastic - roller bearing with ball bearing - roller conveyor - vertical guide roller - vertical guide roller with rubber -

Application example roller conveyor
(1) Vertical guide rollers, (2) roller belt, (3) roller bearing

Application example: roller conveyor with split roller - roller bearing with rotation axis - roller bearing with flange - roller bearing two-part - roller bearing plastic - roller bearing with clamping screw

Application example: roller conveyor
(1) Plastic roller bearing, (2) rotary axes

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

Part Number:

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Part Number
RORNA50-90

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Roller Type	Urethane Rubber Processing	Roller Shape	[D] Outer Diameter (mm)	Material (Base, Core)	I.D. d (mm)	Surface Treatment	Urethane/Rubber Material	Urethane/Rubber Hardness	Urethane/Rubber Color	Bearing Material	[L] Length (mm)	L
	55.66 €	1	Available	9 Days	10	Urethane, Rubber Roller	Lining	Straight	50	[Aluminum] EN AW-5052 Equiv.	15	Not Provided	NBR	60	Black	Steel	90	-

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Technical Drawing - Roller with Bearings

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Specification Tables - Roller with Bearings

■ L Selectable

Part Number				D	L Selection											d	D_1(H7)	dh	B	Bearing Used
Type			No.	D	L Selection											d	D_1(H7)	dh	B	Bearing Used
Straight Core Material Only RORB RORM RORS RORA Urethane RORKS RORKA RORUP RORUS RORUZ RORUA RORGS RORGA RORHS RORHA	Silicon Rubber RORSS RORSA RORJS RORJA RORWS Heat Resistant Urethane RORTS RORTA NBR RORNS RORNA	Crowned Core Only ROCRB ROCRM ROCRS ROCRA Urethane ROCRUS ROCRUA ROCRGS ROCRGA ROCRHS Silicon Rubber ROCRSS	(20)	20	15	20	25	30	40	50						6	15	10	5	696ZZx2
			25	25		20	25	30	40	50	60	70	80	90	100	6	15	10	5	696ZZx2
			30	30		20	25	30	40	50	60	70	80	90	100	8	19	15	6	698ZZx2
			35A	35			25	30	40	50						8	22	15	7	608ZZx2
			35	35			25	30	40	50	60	70	80	90	100	10	22	18	6	6900ZZx2
			40A	40			25	30	40	50						10	26	18	8	6000ZZx2
			40	40			25	30	40	50	60	70	80	90	100	12	28	24	8	6001ZZx2
			50A	50			25	30	40	50					100	12	32	24	10	6201ZZx2
			50	50			25	30	40	50	60	70	80	90	100	15	32	28	9	6002ZZx2

D20 is only applicable to Core Only Types (RORB, RORM, RORS, RORA, ROCRB, ROCRM, ROCRS and ROCRA).
No. 35A, 40A, 50A are not available for RORUP.

■ L Configurable (Straight Only)

Part Number			D	L 1mm Increment	d	D_1(H7)	dh	B	Bearing Used
Type		No.
Urethane ROFRUS ROFRUA ROFRGA ROFRHA	Silicon Rubber ROFRSS Heat Resistant Urethane ROFRTS	25	25	21~49	6	15	10	5	696ZZx2
		30	30		8	19	15	6	698ZZx2
		35A	35	26~49		22	18	7	608ZZx2
		35			10			6	6900ZZx2
		40A	40			26		8	6000ZZx2
		40			12	28	24		6001ZZx2
		50A	50	26~99	12	32		10	6201ZZx2
		50			15		28	9	6002ZZx2

Urethane may discolor over time, but there is no effect on physical properties.
L dimensions that can be configured in L Selectable Type, cannot be selected.

Alterations - Roller with Bearings

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Basic information

Mounting Method	With Bearing

This page is Rollers with bearings / polyurethane layer, part number RORNA50-90.
You can find the detail information about specifications and dimensions on part number RORNA50-90.

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Basic Attributes

L
Clear
Type
- ROCRA
- ROCRB
- ROCRGA
- ROCRGS
- ROCRHS
- ROCRM
- ROCRS
- ROCRSS
- ROCRUA
- ROCRUS
- ROFRGA
- ROFRHA
- ROFRSS
- ROFRTS
- ROFRUA
- ROFRUS
- RORA
- RORB
- RORGA
- RORGS
- RORHA
- RORHS
- RORJA
- RORJS
- RORKA
- RORKS
- RORM
- RORNA
- RORNS
- RORS
- RORSA
- RORSS
- RORTA
- RORTS
- RORUA
- RORUP
- RORUS
- RORUZ
- RORWS
Clear
Roller Type
- Urethane, Rubber Roller
- Metal roller
- Plastic Rollers
Clear
Urethane Rubber Processing
- Lining
Clear
Roller Shape
- Straight
- Crowned
Clear
[D] Outer Diameter(mm)
20

25

30

35

40

50
Clear
Material (Base, Core)
- Steel
  - EN 1.1191 Equiv.
- Aluminum
  - EN AW-5052 Equiv.
  - Aluminum Alloy 5000 series
- EN 1.4301 Equiv.
Clear
I.D. d(mm)
6

8

10

12

15
Clear
Surface Treatment
- Black Oxide
- Clear Anodize
- Electroless Nickel Plating
- Not Provided
Clear
Urethane/Rubber Material
- Heat Resistant Urethane
- NBR
- Silicon Rubber
- Urethane
Clear
Urethane/Rubber Hardness
- 50
- 60
- 70
- 90
- 95
Clear
Urethane/Rubber Color
- Black
- Light Gray
- Natural Color
- Red Brown
- White
Clear
Bearing Material
- Stainless Steel
- Steel
Clear
[L] Length(mm)
15

20

25

30

40

50

60

70

80

90

100
Clear
Filter by CAD data type
- 2D
- 3D
Clear

Optional Attributes

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

Frequently Asked Questions (FAQ)

Question:
How is the foam attached to the support roller?: Answer:
The foam is pressed onto the roller bearing (core material). In order to prevent the foam from slipping or severely deforming, it should be ensured that the load is uniformly distributed.
Question:
Can the polyurethane layer be replaced?: Answer:
The polyurethane layer is generally vulcanized onto the roller bearing. If the polyurethane layer is heavily worn, it is therefore recommended replacing the roller bearing as one unit. Please see the basic properties, in order to find out if the polyurethane layer is vulcanized.
Question:
Are the polyurethane rollers oil resistant?: Answer:
The polyurethane roller bearings are only partially resistant to oil. These can be swelled and damaged by oil. For this purpose, MISUMI offers roller bearings with a nitrile rubber layer that is oil-resistant. Nitrile rubber (NBR) is often used for sealing rings due to this property. You can view further information in the rubber properties available as a PDF.
Question:
Are the roller bearings with PU coating suitable as a drive pulley?: Answer:
MISUMI offers roller bearings with tightening screws or with a keyway that can be used as a roller pulley. Especially the roller bearing with a keyway in combination with a parallel key (machine key) ensures a good transmission of rotational movements.

Show more FAQ Close

Variation of this product

Part Number
ROCRA50-90
ROCRB50-60
ROCRB50-70
RORNS50-60
RORNS50-70
RORNS50-80

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Roller Type	Urethane Rubber Processing	Roller Shape	[D] Outer Diameter (mm)	Material (Base, Core)	I.D. d (mm)	Surface Treatment	Urethane/Rubber Material	Urethane/Rubber Hardness	Urethane/Rubber Color	Bearing Material	[L] Length (mm)	L
56.30 €	1	Available	9 Days	10	Metal roller	-	Crowned	50	[Aluminum] Aluminum Alloy 5000 series	15	Clear Anodize	-	-	-	Steel	90	-
43.65 €	1	Available	9 Days	10	Metal roller	-	Crowned	50	[Steel] EN 1.1191 Equiv.	15	Black Oxide	-	-	-	Steel	60	-
43.65 €	1	Available	9 Days	10	Metal roller	-	Crowned	50	[Steel] EN 1.1191 Equiv.	15	Black Oxide	-	-	-	Steel	70	-
68.83 €	1	Available	9 Days	10	Urethane, Rubber Roller	Lining	Straight	50	EN 1.4301 Equiv.	15	Not Provided	NBR	60	Black	Steel	60	-
68.83 €	1	Available	9 Days	10	Urethane, Rubber Roller	Lining	Straight	50	EN 1.4301 Equiv.	15	Not Provided	NBR	60	Black	Steel	70	-
68.83 €	1	Available	9 Days	10	Urethane, Rubber Roller	Lining	Straight	50	EN 1.4301 Equiv.	15	Not Provided	NBR	60	Black	Steel	80	-