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The 220 series (NU220, N220, NJ220, NUP220) consists of single-row cylindrical roller bearings measuring 100 mm (ID) × 180 mm (OD) × 34 mm (Width). Designed for high radial loads and high-speed operation, these separable bearings come in various flange configurations to handle different axial movement requirements. Available with robust steel or precision-machined brass cages, we supply bulk B2B orders with OEM logo options and custom packaging—contact us to get a competitive wholesale quote.
The 220 Series Cylindrical Roller Bearings are engineered with cylindrical rollers in linear contact with the raceways, offering exceptional radial load capacity and stiffness compared to standard ball bearings. Their design allows the inner and outer rings to be separated, significantly simplifying the installation and removal process in heavy machinery where interference fits are required on both rings.
Please verify these dimensions and load ratings against your equipment’s maintenance manual or BOM.
Item | Specification |
Designations | NU220, N220, NJ220, NUP220 |
Bearing Type | Single-row cylindrical roller bearing |
Bore diameter (d) | 100.00 mm |
Outer diameter (D) | 180.00 mm |
Width (B) | 34.00 mm |
Weight | ≈ 3.33 kg |
Dynamic load rating (C) | ≈ 203 kN |
Static load rating (C0) | ≈ 217 kN |
Cage materials | Steel (standard) or Machined Brass (M/M1) |
Selecting the right prefix is critical, as it determines how the bearing guides the shaft axially:
NU220: Two flanges on the outer ring, no flanges on the inner ring. The shaft can move axially in both directions (ideal non-locating bearing).
N220: Two flanges on the inner ring, no flanges on the outer ring. Also allows axial shaft movement in both directions.
NJ220: Two flanges on the outer ring, one flange on the inner ring. Allows axial movement in one direction only.
NUP220: Two flanges on the outer ring, one integral flange, and one loose flange ring on the inner ring. Locks the shaft in both axial directions (locating bearing).
The 100x180x34 mm footprint is a highly versatile size for heavy industry. They are frequently used in large electric motors, industrial gearboxes, pumps, and compressors.
To meet different operational demands, we offer:
Standard Steel Cage: Lightweight, excellent lubricant flow, and suitable for most general industrial applications operating up to 120°C.
Machined Brass Cage (M / M1): Provides superior strength and stability under heavy vibration, shock loads, and high acceleration, often requested for heavy gearboxes and rolling mills.
We are equipped to support the complex supply chain needs of wholesale distributors and original equipment manufacturers. We provide full OEM branding, allowing you to laser-mark your company logo or specific internal part numbers onto the bearing rings. Packaging is highly flexible—from neutral bulk packing for assembly lines to custom-branded single boxes ready for retail distribution.
Q1: What does the "E" suffix mean in NU220E or NU220EM?
A: The "E" indicates an "Extra Capacity Design." This means the bearing's internal geometry is optimized—usually with larger or more rollers—providing a higher load-carrying capacity than standard designs without changing the external 100x180x34 mm dimensions.
Q2: Can an NU220 handle axial thrust loads?
A: No. NU and N series bearings have no flanges on one of their rings, meaning they cannot support any axial (thrust) load. If you need to handle axial loads, you should use the NJ (one direction) or NUP (both directions) configurations.
Q3: Can I request a larger internal clearance, like C3?
A: Yes. While normal radial internal clearance (CN/C0) is standard, we can supply C3 or C4 clearances for applications involving high operating temperatures or tight interference fits.
Q4: Do you provide samples for testing?
A: Yes, we offer sample orders so your engineering and quality assurance teams can evaluate the material, cage construction, and tolerances before placing large bulk orders.
The 220 Series Cylindrical Roller Bearings are engineered with cylindrical rollers in linear contact with the raceways, offering exceptional radial load capacity and stiffness compared to standard ball bearings. Their design allows the inner and outer rings to be separated, significantly simplifying the installation and removal process in heavy machinery where interference fits are required on both rings.
Please verify these dimensions and load ratings against your equipment’s maintenance manual or BOM.
Item | Specification |
Designations | NU220, N220, NJ220, NUP220 |
Bearing Type | Single-row cylindrical roller bearing |
Bore diameter (d) | 100.00 mm |
Outer diameter (D) | 180.00 mm |
Width (B) | 34.00 mm |
Weight | ≈ 3.33 kg |
Dynamic load rating (C) | ≈ 203 kN |
Static load rating (C0) | ≈ 217 kN |
Cage materials | Steel (standard) or Machined Brass (M/M1) |
Selecting the right prefix is critical, as it determines how the bearing guides the shaft axially:
NU220: Two flanges on the outer ring, no flanges on the inner ring. The shaft can move axially in both directions (ideal non-locating bearing).
N220: Two flanges on the inner ring, no flanges on the outer ring. Also allows axial shaft movement in both directions.
NJ220: Two flanges on the outer ring, one flange on the inner ring. Allows axial movement in one direction only.
NUP220: Two flanges on the outer ring, one integral flange, and one loose flange ring on the inner ring. Locks the shaft in both axial directions (locating bearing).
The 100x180x34 mm footprint is a highly versatile size for heavy industry. They are frequently used in large electric motors, industrial gearboxes, pumps, and compressors.
To meet different operational demands, we offer:
Standard Steel Cage: Lightweight, excellent lubricant flow, and suitable for most general industrial applications operating up to 120°C.
Machined Brass Cage (M / M1): Provides superior strength and stability under heavy vibration, shock loads, and high acceleration, often requested for heavy gearboxes and rolling mills.
We are equipped to support the complex supply chain needs of wholesale distributors and original equipment manufacturers. We provide full OEM branding, allowing you to laser-mark your company logo or specific internal part numbers onto the bearing rings. Packaging is highly flexible—from neutral bulk packing for assembly lines to custom-branded single boxes ready for retail distribution.
Q1: What does the "E" suffix mean in NU220E or NU220EM?
A: The "E" indicates an "Extra Capacity Design." This means the bearing's internal geometry is optimized—usually with larger or more rollers—providing a higher load-carrying capacity than standard designs without changing the external 100x180x34 mm dimensions.
Q2: Can an NU220 handle axial thrust loads?
A: No. NU and N series bearings have no flanges on one of their rings, meaning they cannot support any axial (thrust) load. If you need to handle axial loads, you should use the NJ (one direction) or NUP (both directions) configurations.
Q3: Can I request a larger internal clearance, like C3?
A: Yes. While normal radial internal clearance (CN/C0) is standard, we can supply C3 or C4 clearances for applications involving high operating temperatures or tight interference fits.
Q4: Do you provide samples for testing?
A: Yes, we offer sample orders so your engineering and quality assurance teams can evaluate the material, cage construction, and tolerances before placing large bulk orders.
