Ingersoll Rand 7546-B Reversible Air Power Motor provides pneumatic rotary output for machinery requiring a higher-speed, gear-reduced drive with bidirectional operation. Rated at 0.25 HP and 4,500 RPM, this model uses a single gear reduction to deliver its specified output characteristics. Its reversible configuration supports equipment where both forward and reverse rotation are required during the operating cycle.
The 7546-B develops 0.98 lb-ft stall torque, representing the torque produced when an applied load prevents the motor output from rotating. Together, the 4,500 RPM speed, 0.25 HP rating, reversible operation, and single gear reduction provide important selection criteria for OEM designers, machine builders, and maintenance professionals matching an air power motor to compatible machinery or an existing pneumatic drive.
Type: Air Power Motor | Model: 7546-B | Rotation: Reversible | Power: 0.25 HP | Speed: 4,500 RPM | Stall Torque: 0.98 lb-ft | Gear Reduction: Single
Features:
- Pneumatic motor configuration provides rotary output from a compatible compressed-air supply.
- Reversible operation allows compatible machinery to use forward and reverse rotational motion.
- Single gear reduction provides the specified gear-reduced output configuration.
- 0.25 HP power rating provides a defined specification for matching the motor to appropriate driven equipment.
- 4,500 RPM output supports applications requiring higher-speed pneumatic rotary motion.
- 0.98 lb-ft stall torque provides a load reference when evaluating the motor against application requirements.
Made in USA: 
Applications:
- OEM machinery requiring reversible pneumatic rotary power.
- Automated mechanisms where direction changes are incorporated into the operating sequence.
- Production equipment compatible with a 4,500 RPM gear-reduced motor output.
- Machine-building applications where single gear reduction and bidirectional rotation match the required drive arrangement.
- MRO replacement installations where the 7546-B performance ratings and mechanical interfaces match the existing motor.
FAQs:
- Q: Is the Ingersoll Rand 7546-B reversible?
A: Yes. The 7546-B is specified as a reversible air power motor for compatible machinery requiring rotation in either direction. - Q: What is the output speed of the 7546-B?
A: The specified output speed is 4,500 RPM. - Q: Does the 7546-B use single or double gear reduction?
A: The 7546-B is specified with single gear reduction. This configuration should be matched to the requirements of the driven equipment when selecting or replacing an air motor. - Q: How much stall torque does the 7546-B provide?
A: The specified stall torque is 0.98 lb-ft. Stall torque represents torque developed when the applied load prevents the motor output from rotating. - Q: What should be checked before using the 7546-B as a replacement motor?
A: Confirm that the application requires 0.25 HP, 4,500 RPM output, 0.98 lb-ft stall torque, reversible operation, and single gear reduction. Shaft, mounting, dimensional, and compressed-air requirements should also be verified against the manufacturer 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 at Max. Hp | ||||||||||
| lb-ft | Nm | lb-ft | Nm | SCFM | L/s | dB(A) | lbs | kg | |||||
| Non-Reversible - 0.25 HP | |||||||||||||
| 7538-B | 3/8" Keyed | 550 | 325 | 8.2 | 11.1 | 4.0 | 5.4 | 18.1 | 8.5 | 75 | 1.82 | 0.82 | Double |
| 7539-B | 3/8" Keyed | 900 | 550 | 5.0 | 6.7 | 2.4 | 3.2 | 18.1 | 8.5 | 75 | 1.82 | 0.82 | Double |
| 7540-B | 3/8" Keyed | 2,700 | 1,600 | 1.75 | 2.3 | 0.82 | 1.1 | 18.1 | 8.5 | 75 | 1.52 | 0.68 | Single |
| 7541-B | 3/8" Keyed | 4,500 | 2,700 | 1.05 | 1.4 | 0.49 | 0.66 | 18.1 | 8.5 | 75 | 1.52 | 0.68 | Single |
| 7542-C | 3/8" Keyed | 20,000 | 12,000 | 0.22 | 0.3 | 0.11 | 0.14 | 18.1 | 8.5 | 75 | 1.52 | 0.68 | Single |
| 7533-B | 3/8"-24 Th’d. | 550 | 325 | 8.2 | 11.1 | 4.0 | 5.4 | 18.1 | 8.5 | 75 | 1.82 | 0.82 | Double |
| 7534-B | 3/8"-24 Th’d. | 900 | 550 | 5.0 | 6.7 | 2.4 | 3.2 | 18.1 | 8.5 | 75 | 1.82 | 0.82 | Double |
| 7535-C | 3/8"-24 Th’d. | 2,700 | 1,600 | 1.75 | 2.3 | 0.82 | 1.1 | 18.1 | 8.5 | 75 | 1.52 | 0.68 | Single |
| 7536-B | 3/8"-24 Th’d. | 4,500 | 2,700 | 1.05 | 1.4 | 0.49 | 0.66 | 18.1 | 8.5 | 75 | 1.52 | 0.68 | Single |
| 7537-C | 3/8"-24 Th’d. | 20,000 | 12,000 | 0.22 | 0.3 | 0.11 | 0.14 | 18.1 | 8.5 | 75 | 1.52 | 0.68 | Single |
| Reversible - 0.25 HP | |||||||||||||
| 7543-B | 3/8" Keyed | 550 | 300 | 7.80 | 10.6 | 4.37 | 5.9 | 20.0 | 9.4 | 75* | 1.82 | 0.82 | Double |
| 7544-B | 3/8" Keyed | 900 | 550 | 4.75 | 6.4 | 2.62 | 3.5 | 20.0 | 9.4 | 75* | 1.82 | 0.82 | Double |
| 7545-B | 3/8" Keyed | 2,700 | 1,500 | 1.60 | 2.2 | 0.87 | 1.1 | 20.0 | 9.4 | 75* | 1.52 | 0.68 | Single |
| 7546-B | 3/8" Keyed | 4,500 | 2,400 | 0.98 | 1.3 | 0.55 | 0.7 | 20.0 | 9.4 | 75* | 1.52 | 0.68 | Single |
| 7547-C | 3/8" Keyed | 20,000 | 11,000 | 0.22 | 0.3 | 0.12 | 0.16 | 20.0 | 9.4 | 75* | 1.52 | 0.68 | Single |
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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
