1. L, dimensions are based on MN seal type, details see seal type
2. AAAAL blocks of GZB series are flange type and top mounting holesare thread holes, up-lock see dimension M, down-ock see dimension a
3. GZ885, GZB100, GZB125 blocks in the top L3, Bs directions aresymmetrically distributed of three-row mounting holes, total 9 holes.
4. Please note if need oil of side surface