M38

450 Lb. Max Lever Force - Mechanical Single Acting Caliper Disc Brake

  • Cast or extruded aluminum construction
  • Hardcoated housing
  • Spring retractable piston
  • Replaceable, non-asbestos friction pads
  • Unlimited disc diameter
  • Dynamic Torque (in.lb.) 2.69 x Lever Force (lb.) x Braking Radius

Cam Lever Travel Data:

  • 15º maximum lever travel when friction pads are new and with 1/32" gap on each side of disc.
  • Periodic tightening of lock nut will reduce travel of lever and will allow 1/4" wear on each friction pad.
  • 90º maximum lever travel after 3/16" wear on each friction pad and without intermediate tightening of lock nut.
  • Power Factor: M38FSeries 1X, 200 Series 3.5X
Click image to enlarge

Quick Facts - Dynamic Torque (inch/lb) = 2.69 x Lever Force (lb.) x Braking Radius | Braking Radius = Disc Radius - 0.62 in.

Model Dynamic Torque lbf./1 lb. Lever Force Disc Diameter Range, in. Bore Diameter, in. Total Friction Pad Area, in. sq. Maximum Lever Force, lbf.
M38 2.69 Unlimited 1.125 2.0 450

M38 Series

Product # Model Description Additional Info Disc Thick. (in.) Lever Force (lb.)
4004-0802 M38MA Single Acting, Fixed Mount. Use Floating Disc Single Spring Retractable Piston 5/32 450
4004-0800 M38MAF Single Acting, Floating Mount. Use Fixed Disc Single Spring Retractable Piston 5/32 450
4004-0803 M38MB Single Acting, Fixed Mount. Use Floating Disc Single Spring Retractable Piston 1/4 450
4004-0801 M38MBF Single Acting, Floating Mount. Use Fixed Disc Single Spring Retractable Piston 1/4 450
4004-0806 M38ML Single Acting, Fixed Mount. Use Floating Disc Single Spring Retractable Piston 3/8 450
4004-0804 M30MLF Single Acting, Floating Mount. Use Fixed Disc Single Spring Retractable Piston 3/8 450
4004-0805 M38ME Single Acting, Fixed Mount. Use Floating Disc Single Spring Retractable Piston 1/2 450
4004-0807 M38MEF Single Acting, Floating Mount. Use Fixed Disc Single Spring Retractable Piston 1/2 450

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