HK4020-B INA

Drawn cup needle roller bearing

Properties

• 40.00 mm ID
• 47.00 mm OD
• 20.00 mm Width
• Open both ends
• Unsealed

Drawn cup needle roller bearings with open ends are supplied with a needle roller and cage assembly or a full complement needle roller set. Bearings with needle roller and cage assemblies allow higher speeds than the full complement designs.

Full complement drawn cup needle roller bearings with open ends have the maximum number of needle rollers and therefore offer extremely high load-carrying capacity within a very small design envelope. However, their use at high speeds is restricted.

Since the needle rollers are not retained by mechanical means, they are secured for transport and fitting by means of a special grease (DIN 51825–K1/2K–30). However, this does not have adequate long-term lubrication capacity. Relubrication is therefore recommended after fitting.