Ingersoll Rand 8274-2A Reversible Air Power Motor is engineered to provide dependable pneumatic rotary power for industrial equipment requiring substantial output torque with controlled low-speed operation and bidirectional capability. Delivering 0.65 HP with a free speed of 250 RPM, this air motor utilizes a double gear reduction that efficiently multiplies torque while reducing output speed. Its reversible configuration enables both clockwise and counterclockwise rotation, making it an excellent choice for OEM machinery, industrial processing systems, material-handling equipment, indexing mechanisms, conveyors, and other compressed-air-powered applications requiring reliable directional control.
The 8274-2A develops a 43.00 ft-lbs stall torque, representing the maximum torque produced when the output shaft is prevented from rotating. The double-stage gear reduction provides enhanced torque multiplication while maintaining smooth, controlled operation, making this motor well suited for demanding industrial applications requiring higher rotary force together with reversing capability.
Type: Air Power Motor | Model: 8274-2A | Rotation: Reversible | Gear Reduction: Double Gear Reduction | Power: 0.65 HP | Free Speed: 250 RPM | Stall Torque: 43.00 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.
- 250 RPM free speed is ideal for applications requiring slow, controlled rotary motion with increased torque.
- 43.00 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 high output torque with controlled operating speeds.
- Replacement applications where the published motor specifications match the original equipment.
FAQs:
- Q: Is the Ingersoll Rand 8274-2A 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 ideal for demanding industrial applications requiring controlled, high-torque performance. - Q: What is the rated free speed?
A: The manufacturer specifies a free speed of 250 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
