Air Motors Accessories

Air motor accessories mount a vane air motor into a machine and adapt what its shaft drives. Mounting flanges bolt the motor perpendicular to a machine face; mounting feet lay it parallel to the surface and keep it from tipping. Both are cut for a specific motor frame — M16/MR16, M25/MR25, M39/MR39, M84/MR84 and M180 — in the KL, KSL and TL shaft versions, drilled or blank. Spring-loaded shafts turn a threaded TL motor into a pneumatic screw spindle on 1/2 in. square drive, front nuts are listed in 1-5/8 in. for M84 and M39 low-speed frames, and a bronze silencer drops exhaust noise. Shop the motors themselves on the Chicago Pneumatic air motors page, feed them conditioned air through an FRL, and see the rest of the CP accessories range. Ships from Denver.

Showing 1–24 of 33 resultsSorted by popularity

Showing 1–24 of 33 resultsSorted by popularity

Perpendicular or Parallel Mounting

A flange fixes the motor square to the mounting surface, so the output shaft comes straight out of the machine face. A foot lays the motor along the surface on a broad, stable base. Flanges come drilled and undrilled — the no-hole versions let you drill to an existing bolt pattern. Read the frame and shaft code off the nameplate first; an M39 KSL flange will not fit an M39 KL/TL motor.

Matching the Accessory to the Motor Frame

Every part here is built for one frame size and one shaft version. Start with the table, then confirm the reference against the motor.

AccessoryWhat it doesFrames listed
Mounting flange, drilledMounts the motor perpendicular to the machine faceM16/MR16, M25, M39, M84 high and low speed, M180
Mounting flange, no holeSame mounting, blank face to drill your own patternM25/MR25 KL/TL, M39/MR39 KL/TL and KSL
Mounting footMounts the motor parallel to the surfaceM16, M25 and M39 in KL/TL and KSL, M84/MR84 K, M180
Spring-loaded shaftConverts a TL threaded motor into a screw spindle3/8 in. and 1/2 in. square drive
Bronze exhaust silencerDamps exhaust noise about 15 dB(A), roughly 10 percent power dropMounts on the motor exhaust

The full set of flanges, feet, nuts and shafts is in the grid above.

Common Questions

How do I know which flange fits my air motor? Match two things: the frame number (M16, M25, M39, M84 or M180) and the shaft code (K, KL, KSL or TL). Both are on the motor. If the nameplate is gone, the exploded views in the parts and diagrams hub will identify it.

Can I mount a CP air motor on its side? Use a mounting foot rather than a flange — the M16/MR16 KL foot and its larger siblings are made for parallel mounting and stop the motor rolling under torque reaction.

What else does an air motor need? Clean, regulated, oiled air. See tool lubrication for CP motor oil and swivels, hoses and valves for the plumbing.