P38S | P38D

Single and Double Acting Caliper Disc Brakes

  • Dynamic Torque (inch/lb) 70 lbf per 100 psi x Braking Radius
  • 2.0 sq. in. Total Friction Pad Area
  • Unlimited Disc Diameter Range
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Quick Facts - Dynamic torque (inch/lb) = Tangential Brake Force (lbf) x Braking Radius (in.) | Braking Radius (in.) = Disc Radius - 0.62 in.

Model Tangential Brake Force lbf. (N) / 100 PSI Disc Diameter Range, in. Bore Diameter, in. Total Friction Pad Area, in. sq. Maximum Pressure, PSI (Bar)
P38 70 (311)/100 PSI Unlimited 1.125 2.0 1000 (68.95)

P38S (Single Acting) Series

Product # Model Description Additional Info Disc Thick. (in.) Fluid Type
4004-0714 P38SA Single Acting, Fixed Mount. Use Floating Disc Single Non-Retractable Piston 5/32 Air
4004-0190 P38SAF Single Acting, Floating Mount. Use Fixed Disc Single Non-Retractable Piston 5/32 Air
4004-0701 P38SAF Single Acting, Floating Mount. Use Fixed Disc Single Non-Retractable Piston 5/32 Air
4004-0961 P38SARF Single Acting, Floating Mount. Use Fixed Disc Single Retractable Piston 5/32 Air
4004-0720 P38SB Single Acting, Fixed Mount. Use Floating Disc Single Non-Retractable Piston 1/4 Air
4004-0700 P38SBF Single Acting, Floating Mount. Use Fixed Disc Single Non-Retractable Piston 1/4 Air
4004-0721 P38SL Single Acting, Fixed Mount. Use Floating Disc Single Non-Retractable Piston 3/8 Air
4004-0719 P38SLF Single Acting, Floating Mount. Use Fixed Disc Single Non-Retractable Piston 3/8 Air
4004-0722 P38SE Single Acting, Fixed Mount. Use Floating Disc Single Non-Retractable Piston 1/2 Air
4004-0734 P38SEF Single Acting, Floating Mount. Use Fixed Disc Single Non-Retractable Piston 1/2 Air

P38D (Double Acting) Series

Product # Model Description Additional Info Disc Thick (in.) Fluid Type
4004-0706 P38DA Double Acting, Fixed Mount. Use Fixed or Floating Disc. Dual Non-Retractable Pistons 5/32 Air
4004-0707 P38DB Double Acting, Fixed Mount. Use Fixed or Floating Disc. Dual Non-Retractable Pistons 1/4 Air
4004-0723 P38DL Double Acting, Fixed Mount. Use Fixed or Floating Disc. Dual Non-Retractable Pistons 3/8 Air
4004-0724 P38DE Double Acting, Fixed Mount. Use Fixed or Floating Disc. Dual Non-Retractable Pistons 1/2 Air
4004-0744 P38DAR Double Acting, Fixed Mount. Use Fixed or Floating Disc. Dual Spring Retractable Pistons 5/32 Air
4004-0745 P38DBR Double Acting, Fixed Mount. Use Fixed or Floating Disc. Dual Spring Retractable Pistons 1/4 Air
4004-0746 P38DER Double Acting, Fixed Mount. Use Fixed or Floating Disc. Dual Spring Retractable Pistons 1/2 Air
4004-0747 P38DLR Double Acting, Fixed Mount. Use Fixed or Floating Disc. Dual Spring Retractable Pistons 3/8 Air

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