BK-7-7Bg service caliper cylinder assembly 

BK-SR-1 sealing ring

BK-11-S6 Socket cap head screw

 BK-11-D2 Washer 

BK-7-7Ag1 Cover

 BK-SR-2 sealing ring 

 BK-GB-1 Guide band 

 BK-SR-7 sealing ring 

BK-7-7Bg2 Piston 

K-GB-2 Guide band 

BK-SR-6 sealing ring 

BK-7-7Bg3 Hydraulic cylinder 

Bk-7-7Bg4 Axle sleeve