Ingersoll Rand 8274-A Reversible Air Power Motor is engineered to provide dependable pneumatic rotary power for industrial equipment requiring controlled operating speeds, increased output torque, and bidirectional operation. Delivering 0.65 HP with a free speed of 800 RPM, this air motor features a double gear reduction that efficiently multiplies torque while lowering output speed. Its reversible configuration allows both clockwise and counterclockwise rotation, making it well suited for OEM machinery, industrial processing equipment, material handling systems, automated production equipment, and other compressed-air powered applications requiring reliable directional control.
The 8274-A develops a 13.00 ft-lbs stall torque, representing the maximum torque produced when the output shaft is prevented from rotating. The double-stage gear reduction provides increased rotary force while maintaining controlled operating speeds, making this motor an excellent choice for industrial applications that require dependable reversing capability and enhanced torque output.
Type: Air Power Motor | Model: 8274-A | Rotation: Reversible | Gear Reduction: Double Gear Reduction | Power: 0.65 HP | Free Speed: 800 RPM | Stall Torque: 13.00 ft-lbs
Features:
- Reversible air motor provides dependable clockwise and counterclockwise pneumatic rotary operation.
- Double gear reduction significantly increases output torque while reducing operating speed.
- 0.65 HP output supports a wide range of pneumatic drive applications.
- 800 RPM free speed is well suited for equipment requiring controlled rotational performance with increased torque.
- 13.00 ft-lbs stall torque provides a manufacturer-published reference for evaluating maximum torque capability.
- Compact pneumatic motor design integrates easily into OEM machinery and industrial equipment.
- Compressed-air operation eliminates the need for electrical power at the motor, making it suitable for facilities utilizing centralized pneumatic systems.
Made in USA: 
Applications:
- OEM machinery requiring reversible pneumatic rotary power.
- Automated manufacturing and production equipment.
- Industrial processing and assembly systems.
- Material handling, conveyor, indexing, and drive applications requiring controlled speed and increased output torque.
- Replacement applications where the published motor specifications match the original equipment.
FAQs:
- Q: Is the Ingersoll Rand 8274-A reversible?
A: Yes. This model is designed to operate in both clockwise and counterclockwise directions for applications requiring bidirectional shaft rotation. - Q: What is the advantage of double gear reduction?
A: Double gear reduction uses two reduction stages to substantially lower output speed while increasing available output torque, making it well suited for applications requiring controlled, high-torque performance. - Q: What is the rated free speed?
A: The manufacturer specifies a free speed of 800 RPM. - Q: What does the stall torque rating represent?
A: Stall torque is the maximum torque the motor develops when the output shaft is prevented from rotating under load. - Q: What should be verified before installation?
A: Confirm horsepower, free speed, rotation direction, gear reduction, shaft dimensions, mounting arrangement, and compressed-air requirements using the Ingersoll Rand Air Motor Catalog before installation.

| SKU | Spindle | R.P.M. | Torque | Air Consumption at Free Speed | Sound Level at Free Speed | Weight | Gear Reduction | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Free Speed | Load Speed at Max. Hp | Stall | Output | ||||||||||
| lb-ft | Nm | lb-ft | Nm | SCFM | L/s | dB(A) | lbs | kg | |||||
| NON-REVERSIBLE - 0.90 HP | |||||||||||||
| 8276-1A | 7/8" Keyed | 700 | 350 | 27.0 | 37.0 | 13.5 | 18.5 | 41.6 | 19.6 | 78 | 10.10 | 4.55 | 2 |
| 8276-2A | 7/8" Keyed | 350 | 180 | 50.0 | 68.0 | 26.0 | 36.0 | 41.6 | 19.6 | 78 | 10.10 | 4.55 | 2 |
| 8276-3A | 7/8" Keyed | 300 | 150 | 60.0 | 82.0 | 32.0 | 43.0 | 41.6 | 19.6 | 78 | 14.50 | 6.52 | 3 |
| 8276-4A | 7/8" Keyed | 160 | 90 | 105.0 | 143.0 | 53.0 | 72.0 | 41.6 | 19.6 | 78 | 14.50 | 6.52 | 3 |
| 8276-5A** | 7/8" Keyed | 100 | 50 | 150.0** | 206.0 | 95.0 | 130.0 | 41.6 | 19.6 | 78 | 14.50 | 6.52 | 3 |
| 8276-6A** | 7/8" Keyed | 50 | 25 | 150.0** | 206.0 | 150.0** | 206.0 | 41.6 | 19.6 | 78 | 14.50 | 6.52 | 3 |
| REVERSIBLE - 0.65 HP | |||||||||||||
| 8274-A | 7/8" Keyed | 800 | 450 | 13.0 | 18.0 | 7.6 | 10.5 | 35.0 | 16.5 | 83* | 10.10 | 4.55 | 2 |
| 8274-1A | 7/8" Keyed | 475 | 250 | 23.0 | 32.0 | 14.0 | 19.0 | 35.0 | 16.5 | 83* | 10.10 | 4.55 | 2 |
| 8274-2A | 7/8" Keyed | 250 | 130 | 43.0 | 59.0 | 26.0 | 36.0 | 35.0 | 16.5 | 83* | 10.10 | 4.55 | 2 |
| 8274-3A | 7/8" Keyed | 200 | 110 | 52.0 | 71.0 | 31.0 | 42.0 | 35.0 | 16.5 | 83* | 14.50 | 6.52 | 3 |
| 8274-4A | 7/8" Keyed | 120 | 60 | 91.0 | 125.0 | 57.0 | 78.0 | 35.0 | 16.5 | 83* | 14.50 | 6.52 | 3 |
| 8274-5A** | 7/8" Keyed | 65 | 35 | 150.0** | 206.0 | 98.0 | 134.0 | 35.0 | 16.5 | 83* | 14.50 | 6.52 | 3 |
| 8274-6A** | 7/8" Keyed | 35 | 18 | 150.0** | 206.0 | 150.0** | 206.0 | 35.0 | 16.5 | 83* | 14.50 | 6.52 | 3 |
Looking for more information about Ingersoll Rand Air Power Motor? Click here to view the Catalog
For help selecting the correct Ingersoll Rand Air Power Motors for your assembly application, call (800) 608-5210 or email info@intlairtool.com
warning WARNING: This or other products sold on this website may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
