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The 202 Series Cylindrical Roller Bearings utilize a line-contact geometry between the rollers and raceways, allowing them to carry significantly higher radial loads than deep groove ball bearings of the same size. Their separable ring design—where either the inner or outer ring can be removed—simplifies the assembly process, particularly in applications requiring tight interference fits on both the shaft and housing. They are engineered to maintain low friction and stability during high-speed operations.
Cross-reference the technical data below with your purchasing requirements or equipment BOM.
Item | Specification |
Designations | NU202, NJ202 |
Bearing Type | Single-row cylindrical roller bearing |
Bore diameter (d) | 15.00 mm |
Outer diameter (D) | 35.00 mm |
Width (B) | 11.00 mm |
Weight | ≈ 0.048 kg – 0.049 kg |
Clearance | Normal (CN/C0); larger clearances (like C3) available |
Precision Class | P0 / ABEC-1 (Standard); higher precision available |
It is crucial to select the correct flange configuration based on how your shaft needs to be guided:
NU202: Features two solid ribs (flanges) on the outer ring and a smooth inner ring. This design allows the shaft to move axially in both directions, making it an ideal non-locating bearing.
NJ202: Features two ribs on the outer ring and one rib on the inner ring. This semi-locating bearing can accommodate axial displacement in one direction only, providing axial support for the shaft in that specific direction.
We offer different retainer (cage) materials to match your specific operating environment:
Brass Cage (M / EM): Provides superior strength and durability under extreme conditions, including heavy vibrations, shock loads, and high acceleration.
Polyamide/Plastic Cage (P / ECP): Glass-fibre reinforced PA66 cage, excellent for low noise, low friction, and high-speed dynamic environments.
Steel Cage (J / ECJ): Stamped steel, a reliable and cost-effective option for general industrial use.
Despite their compact 15 mm bore size, the NU202 and NJ202 are built for rigorous industrial use. They are frequently installed in:
Small electric motors and generators.
Industrial pumps and fluid handling equipment.
Light-duty gearboxes and power transmissions.
Agricultural machinery and motorized tools.
We are dedicated to supporting the B2B supply chain. We offer comprehensive OEM services, allowing you to laser-mark your brand or custom SKU on the bearing rings. Packaging can be configured "As Customer Required," ranging from space-saving industrial tubes to individually branded boxes with barcodes for retail and distribution.
Q1: Can I use an NJ202 to replace an NU202?
A: Generally, no. The NU202 allows free axial movement in both directions, while the NJ202 restricts axial movement in one direction. Using the wrong type can cause unwanted axial forces that damage the machine.
Q2: What does the "E" suffix (e.g., NJ202E) mean?
A: The "E" or "EC" suffix indicates an optimized internal design. It typically means the bearing has larger or more rollers, providing an increased load-carrying capacity compared to standard designs.
Q3: Are these bearings suitable for high-temperature applications?
A: Standard bearings with steel or brass cages operate safely from -40°C to +120°C. If you require higher temperature resistance, we can provide bearings with C3 internal clearance and specialized lubrication. Bearings with polyamide (plastic) cages are typically limited to +120°C max.
Q4: Can I order sample pieces before a large production run?
A: Yes, we provide samples for quality control and fitment testing prior to confirming bulk wholesale orders.
The 202 Series Cylindrical Roller Bearings utilize a line-contact geometry between the rollers and raceways, allowing them to carry significantly higher radial loads than deep groove ball bearings of the same size. Their separable ring design—where either the inner or outer ring can be removed—simplifies the assembly process, particularly in applications requiring tight interference fits on both the shaft and housing. They are engineered to maintain low friction and stability during high-speed operations.
Cross-reference the technical data below with your purchasing requirements or equipment BOM.
Item | Specification |
Designations | NU202, NJ202 |
Bearing Type | Single-row cylindrical roller bearing |
Bore diameter (d) | 15.00 mm |
Outer diameter (D) | 35.00 mm |
Width (B) | 11.00 mm |
Weight | ≈ 0.048 kg – 0.049 kg |
Clearance | Normal (CN/C0); larger clearances (like C3) available |
Precision Class | P0 / ABEC-1 (Standard); higher precision available |
It is crucial to select the correct flange configuration based on how your shaft needs to be guided:
NU202: Features two solid ribs (flanges) on the outer ring and a smooth inner ring. This design allows the shaft to move axially in both directions, making it an ideal non-locating bearing.
NJ202: Features two ribs on the outer ring and one rib on the inner ring. This semi-locating bearing can accommodate axial displacement in one direction only, providing axial support for the shaft in that specific direction.
We offer different retainer (cage) materials to match your specific operating environment:
Brass Cage (M / EM): Provides superior strength and durability under extreme conditions, including heavy vibrations, shock loads, and high acceleration.
Polyamide/Plastic Cage (P / ECP): Glass-fibre reinforced PA66 cage, excellent for low noise, low friction, and high-speed dynamic environments.
Steel Cage (J / ECJ): Stamped steel, a reliable and cost-effective option for general industrial use.
Despite their compact 15 mm bore size, the NU202 and NJ202 are built for rigorous industrial use. They are frequently installed in:
Small electric motors and generators.
Industrial pumps and fluid handling equipment.
Light-duty gearboxes and power transmissions.
Agricultural machinery and motorized tools.
We are dedicated to supporting the B2B supply chain. We offer comprehensive OEM services, allowing you to laser-mark your brand or custom SKU on the bearing rings. Packaging can be configured "As Customer Required," ranging from space-saving industrial tubes to individually branded boxes with barcodes for retail and distribution.
Q1: Can I use an NJ202 to replace an NU202?
A: Generally, no. The NU202 allows free axial movement in both directions, while the NJ202 restricts axial movement in one direction. Using the wrong type can cause unwanted axial forces that damage the machine.
Q2: What does the "E" suffix (e.g., NJ202E) mean?
A: The "E" or "EC" suffix indicates an optimized internal design. It typically means the bearing has larger or more rollers, providing an increased load-carrying capacity compared to standard designs.
Q3: Are these bearings suitable for high-temperature applications?
A: Standard bearings with steel or brass cages operate safely from -40°C to +120°C. If you require higher temperature resistance, we can provide bearings with C3 internal clearance and specialized lubrication. Bearings with polyamide (plastic) cages are typically limited to +120°C max.
Q4: Can I order sample pieces before a large production run?
A: Yes, we provide samples for quality control and fitment testing prior to confirming bulk wholesale orders.
