Caliper Disc Brake

Product catalog summary

Overview: This document provides technical specifications for two models of caliper disc brakes, WDA-26 and WDA-28. It includes details on rotor sizes, torque, maximum speed, effective radius, maximum pressure, volume per actuation, clamping force, lining area, and lining wear.

Specifications:

WDA-26: Rotor sizes range from 30 inches (762 mm) to 48 inches (1219 mm). Torque varies from 15,300 lbf·ft (20800 N·m) to 26,900 lbf·ft (36400 N·m). Maximum speed ranges from 720 to 1150 r/min. Effective radius is between 0.96 ft (0.29 m) and 1.69 ft (0.51 m). Maximum pressure is 100 lbf/in2 (7 bar). Volume per actuation is 110 in3 (1820 cm3). Clamping force totals 31,800 lbf (141500 N). Lining area is 200 in2 (1290 cm2) with a maximum lining wear of 0.35 in (9 mm).
WDA-28: Rotor sizes range from 48 1/2 inches (1232 mm) to 60 1/2 inches (1537 mm). Torque varies from 38,100 lbf·ft (51600 N·m) to 49,700 lbf·ft (67400 N·m). Maximum speed ranges from 570 to 710 r/min. Effective radius is between 1.59 ft (0.48 m) and 2.07 ft (0.63 m). Maximum pressure is 100 lbf/in2 (7 bar). Volume per actuation is 180 in3 (2950 cm3). Clamping force totals 48,000 lbf (213600 N). Lining area is 415 in2 (2677 cm2) with a maximum lining wear of 0.38 in (10 mm).

Dimensions:

WDA-26: Caliper dimensions include A: 6 1/4 in (159 mm), B: 7 1/2 in (191 mm), C: 4.750 in (120.65 mm), D: 7.500 in (190.50 mm), E: 10 15/16 in (278 mm), F: 20 1/2 in (521 mm), G: 9 1/2 in (242 mm), H: 18 1/2 in (470 mm). Rotor dimensions vary with rotor size.
WDA-28: Caliper dimensions include A: 6 13/16 in (173 mm), B: 8 5/8 in (219 mm), C: 5.203 in (132.16 mm), D: 7.000 in (177.80 mm), E: 12 3/8 in (318 mm), F: 25 3/4 in (654 mm), G: 12 3/4 in (324 mm), H: 24 1/2 in (622 mm). Rotor dimensions vary with rotor size.

Catalog excerpts

WPT Power is constantly striving to improve and develop the product range. For this reason, WPT Power reserves the right to make changes in any product information without prior notice. Every effort has been made to ensure that the dimensions, performance, specifications, etc. are correct at the time of printing. For more information, please contact your authorized WPT Power distributor or visit: WPTpower.com.

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