Specification
Types (pairings)
- Type NH: Bronze / Steel lubrication possible
- Type WH: Bronze-PTFE / Steel self lubricated
- Type WK: Stainless Steel-PTFE / Stainless Steel, self lubricated
Housing Stainless Steel AISI 431
forged, polished
Type NH (lubrication possible)
Bearing socket Bronze CuSn8
Internal ring Steel 100 Cr6
hardened, ground, polished
hard chrome plated
Type WH (self lubricated)
Bearing socket Bronze CuSN8
with PTFE-insert
Internal ring Steel 100Cr6
hardened, ground, polished
hard chrome plated
Type WK (self lubricated)
Bearing socket, Stainless Steel
AISI 316Ti with PTFE-insert
Internal ring
Stainless Steel AISI 420
hardened, ground, polished
Information
Ball joint heads GN 648.5 are similar to DIN ISO 12240-4, series K (formerly DIN 648 K).