Splined Type Loose Balls Type 8/9S: KT-SB8-3 : 3 pawls (Inner/Outer seal included) Weight: 164g Sealed Cartridge Bearings Type 8/9S: KT-SB8-3: 3 pawls (Inner/Outer seal included)
Screwing Type Loose Balls Type : KT-CB8:8/9S KT-CB7:7S (Inner/Outer seal included) Weight: 184g
Sealed Cartridge Bearings Type: KT-CS8:8/9S KT-CS7:7S (Inner/Outer seal included)