Manufacturer designation:

688-ZZ

Designation due to standards:

618/8 ZZ - DIN 625-1 ISO15:2011
1000088 - GOST 8338-75

Design:

The ball bearing consists of two rings (internal and external) and rolling elements (balls), connected with a cage - separator.

Features:

Metal shielded seals (type ZZ) on both sides of bearing.