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
Click image to enlarge
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 |
$141.58
|
| 4004-0701 | P38SAF | Single Acting, Floating Mount. Use Fixed Disc | Single Non-Retractable Piston | 5/32 | Air |
$113.28
|
| 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 |
$153.32
|
| 4004-0745 | P38DBR | Double Acting, Fixed Mount. Use Fixed or Floating Disc | Dual Spring Retractable Pistons | 1/4 | Air |
$154.16
|
| 4004-0746 | P38DER | Double Acting, Fixed Mount. Use Fixed or Floating Disc | Dual Spring Retractable Pistons | 1/2 | Air |
$155.79
|
| 4004-0747 | P38DLR | Double Acting, Fixed Mount. Use Fixed or Floating Disc | Dual Spring Retractable Pistons | 3/8 | Air |
$154.94
|
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