SKF NKI 50/25 50 mm ID Roller Bearing Needle Roller, 68 mm OD

This roller bearing is a needle roller solution designed for radial load support in rotating assemblies where Compact cross-sections are required. Constructed from bearing steel with a single row of rollers and a sheet-metal cage, it operates with a controlled internal clearance and is suitable for applications demanding defined static and dynamic load capacities and high rotational speeds.

• Needle rollers provide high load support with Compact cross-section
• Sheet-metal cage ensures consistent roller guidance at speed
• CN internal clearance accommodates thermal expansion and shaft fit
• 85 kN static load rating resists Peak stationary loads
• 45 kN dynamic load rating supports sustained rotating loads
• 8,500 r/min limiting speed enables high-speed operation

• Suitable for transmissions requiring high radial load capacity
• Ideal for Compact gearbox shaft support arrangements
• Used with precision shafts needing controlled internal clearance
• Can be used for machinery with high rotational speed demands
• Suitable for industrial assemblies prioritising space-saving bearings

The rollers and rings are MADE from bearing steel.

The sheet-metal cage maintains roller spacing and reduces skewing at elevated speeds.

CN denotes a normal internal clearance suitable for standard operating temperatures and fits.

The static load rating of 85 kN defines resistance to non-rotating Peak loads.

The limiting speed is 8,500 r/min and should not be exceeded for reliable operation.