10/SPCBP3550 10/SPCBP4000 10/SPCBP5600 10:1 HPCB 12V 10:1 HPCB 12V DUAL-SHAFT 10:1 HPCB 6V 10:1 HPCB 6V DUAL-SHAFT 10:1 METAL GEARMOTOR 37DX50L MM 24V 10:1 METAL GEARMOTOR 37DX50LMM 12V 10:1 METAL GEARMOTOR 37DX65L 24V 64 CPR