This bearing coms in both a sealed and a shielded version. Please select between the two below. Select 2RS for a sealed bearing or ZZ for a shielded bearing.

This bearing can be found with the following part numbers on it:
6311-2RS, 6311 2RS, 6311 RS, 6311RS, 6311-ZZ, 6311 ZZ, 6311ZZ, 6311 Z.

The 6311-2RS and 6311-ZZ is a 55mm ball bearing that is found in many applications. The 6311-2RS ball bearing has 55x120x29 Bearing two contact rubber seals one on each side of the ball bearing. The 6311-ZZ ball bearing has two non-contact metal shields one on each side of the ball bearing. If your application NSK 30tac62 Bearing requires a 6311 ball bearing with only one seal or shield you can get this ball bearing and take one of the shields or seals off. This 55mm inch ball bearing is high quality and can take electric motor demands if needed.