NU Type
Two outer-ring flanges and no inner-ring flange allow axial displacement between the rings.
AOSN / Roller Bearings
Cylindrical Roller Bearings
Cylindrical roller bearings use line contact between the rollers and raceways to support high radial loads. Their separable rings simplify mounting and maintenance.
Choose the flange arrangement to suit the shaft's axial location and displacement requirements. Single-row designs include NU, NJ, NUP, N and NF types.
Representative NU cutaway. Construction varies by bearing type.
Ring and Flange Arrangements
Single-Row Bearing Types
NJ Type
Two outer-ring flanges and one inner-ring flange provide axial location in one direction.
NUP Type
An additional loose flange ring provides axial location in both directions.
N Type
Two inner-ring flanges and no outer-ring flange allow axial displacement between the rings.
NF Type
Two inner-ring flanges and one outer-ring flange provide axial location in one direction.
Structural illustrations are schematic. Consult the selected model's dimensions below.
Separable Rings
The inner and outer rings can be mounted separately, simplifying assembly and inspection.
Cage Options
Depending on the selected design, cages may use pressed steel, machined brass or moulded polyamide.
Double-Row Designs
NN and NNU configurations offer high radial rigidity for applications such as machine-tool spindles. Contact AOSN for selection support.
Product Selection
Single-Row Cylindrical Roller Bearings
Search a designation or narrow the range by type and boundary dimensions. All dimensions are in millimetres.
| Designation | d | D | B | r min. | r₁ min. | Fw | Ew |
|---|
No bearings match these filters.
r and r₁ are minimum chamfer dimensions. Fw and Ew are raceway diameters. A dash indicates that the source does not specify a value.
← All single-row bearings![AOSN cylindrical roller bearing full view]()
Representative product views. Construction varies by model.
AOSN / Single-Row
Boundary Dimensions
Dimensions in millimetres.
| Symbol | Dimension | Value (mm) |
|---|
Dimensional Drawings
Abutment and Fillet Dimensions
Installation dimensions in millimetres. Minimum and maximum limits correspond to the drawing labels.
| Symbol | Dimension | Value (mm) |
|---|
Installation dimensions are not available for this designation. Contact AOSN for a confirmed drawing.
AOSN Selection Support
Request Bearing Specifications
Send the complete model, quantity and operating requirements for a quotation.