For Motor NEMA Frame Size For Motor NEMA Frame Size |
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Mounting Orientation Mounting Orientation |
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Application Type Application Type |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Adjustment Style Adjustment Style |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Adjustable Motor-Mounting Bases
Increase energy efficiency in belt-driven systems while reducing wear on components—use one of these bases to adjust your motor position to get the proper belt tension.
Bases for constant-speed applications keep your motor in a fixed position while operating.
Bases for variable-speed applications allow movement while operating to compensate for vibration and varying loads. They’re often used for automatic belt tensioning with spring-loaded pulleys in variable-speed drive applications.
For technical drawings and 3-D models, click on a part number.
| For Motor NEMA Frame Size | For Max. Motor hp | Mounting Orientation | Max. Adjustment | Adjustment Style | Lg. | Wd. | Ht. | Each | ||
For Linear Adjustment in Constant-Speed Applications | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A | 143, 143T | 1 1/2 | Horizontal | 3" | Cap Screw | 10 1/2" | 7 1/2" | 1 1/8" | 00000000 | 000000 |
| A | 145, 145T | 3 | Horizontal | 3" | Cap Screw | 10 1/2" | 8 1/2" | 1 1/8" | 00000000 | 00000 |
| A | 182, 182T | 5 | Horizontal | 3" | Cap Screw | 12 3/4" | 9 1/2" | 1 1/2" | 00000000 | 00000 |
| A | 184, 184T | 7 1/2 | Horizontal | 3" | Cap Screw | 12 3/4" | 10 1/2" | 1 1/2" | 00000000 | 00000 |
| A | 213T, 213 | 10 | Horizontal | 3 1/2" | Cap Screw | 15" | 11" | 1 3/4" | 00000000 | 00000 |
| A | 215, 215T | 15 | Horizontal | 3 1/2" | Cap Screw | 15" | 12 1/2" | 1 3/4" | 00000000 | 00000 |
| A | 56 | 3 | Horizontal | 3" | Cap Screw | 10 5/8" | 6 1/2" | 1 1/8" | 00000000 | 00000 |
| B | 254, 254T | 20 | Horizontal | 4" | Cap Screw | 17 3/4" | 15 1/8" | 2" | 00000000 | 000000 |
| B | 256, 256T | 25 | Horizontal | 4" | Cap Screw | 17 3/4" | 16 7/8" | 2" | 00000000 | 000000 |
| B | 284, 284T | 30 | Horizontal | 4 1/2" | Cap Screw | 19 3/4" | 16 7/8" | 2" | 00000000 | 000000 |
| B | 286T, 286 | 40 | Horizontal | 4 1/2" | Cap Screw | 19 3/4" | 18 3/8" | 2" | 00000000 | 000000 |
For Linear Adjustment in Variable-Speed Applications | ||||||||||
| C | 48, 56 | 3 | Any Angle | 2 1/8" | Hex Nuts | 9 1/2" | 5 7/8" | 1 3/8" | 00000000 | 000000 |
| D | 48, 56 | 3 | Any Angle | 5 7/8" | Hand Crank | 13 1/8" | 6 1/4" | 3" | 0000000 | 000000 |
| E | 48, 56, 66, 143T, 145T, 182, 184, 56H, 203 | 2 | Horizontal, Vertical | 8" | Hand Crank | 18 1/8" | 8" | 3 1/4" | 0000000 | 000000 |
For Angular Adjustment in Variable-Speed Applications | ||||||||||
| F | 48, 56 | 3 | Any Angle | 30° | Hand Crank | 12 1/2" | 5 7/8" | 3 1/2" | 0000000 | 000000 |
Hydraulic Pump-to-Motor Mounts
Mate a NEMA C-face motor to the mounting flange of a hydraulic pump. Mounts reduce noise and protect the shaft and coupling connection between the motor and the pump.
For technical drawings and 3-D models, click on a part number.
| For Pump SAE Trade Size | For Motor NEMA Frame Size | Dp. | Material | Each | |
| AA | 143TC, 145TC, 56C | 4.25" | Aluminum | 00000000 | 000000 |
| A | 143TC, 145TC, 56C | 4.25" | Aluminum | 00000000 | 00000 |
| A | 182TC, 184TC, 213TC, 215TC, 254TC, 256TC | 5.00" | Aluminum | 00000000 | 00000 |
| A | 182TC, 184TC, 213TC, 215TC, 254TC, 256TC | 5.81" | Aluminum | 00000000 | 00000 |
| A | 182TC, 184TC, 213TC, 215TC, 254TC, 256TC | 6.81" | Aluminum | 00000000 | 00000 |
| B | 182TC, 184TC, 213TC, 215TC, 254TC, 256TC | 5.81" | Aluminum | 00000000 | 00000 |
| B | 182TC, 184TC, 213TC, 215TC, 254TC, 256TC | 6.81" | Aluminum | 00000000 | 00000 |
| 4F17 | 143TC, 145TC, 56C | 4.25" | Aluminum | 00000000 | 00000 |