The grooved wheel is of 25 cm dia.and gears are machine cut.
Winch crab single purchase- Fitted with heavy cast iron wall brackets.
Winch crab Double purchase- Same as above but with double set of gearing arrangement
Winch Crab Single/Double Purchase Operation Manual, Lab Instructor Guide and Student Workbook. Winch Crab Single/Double Purchase for Educational Vocational, Didactic Technical Training Equipment Labs.