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Overhung Load Adapters

Adapter Types: SAE A, SAE B, SAE C, SAE D

Input A

Input B

Input C

Input D

Why Choose RMG Overhung Load Adapters?

RMG Overhung Load Adapters, furnished with pre-heat-treated 4140 shafting, allow for the easy adaptation of standard electric motors to gear reducers and clutches which normally would only interface with hydraulic motors. They also allow for the adaptation of belts and pulleys (instead of relying on direct “plugin” hydraulic motors). Lastly, they allow for the adaptation of belts and pulleys coupling an electric motor to gear reducers for use with Variable Frequency Drives. The use of belts and pulleys (on either hydraulic motors or electric motors) with gear reducers, torque Hubs or clutches can often solve space problems. Additionally, by being able to belt drive the transmission equipment, it is possible to enjoy a wider selection of reduction ratios, speed values, and service factors.

Standard SAE Overhung Load Adapters Specifications

*All dimensions are in inches and are subject to change without notice.
Mount A B C D E F G H J
A 5.75 2.31 2.26 1.18 0.25 3.250 - 3.248 0.565 0.531 1.87
B 6.86 2.95 2.34 1.57 0.31 4.000 - 3.998 0.56 0.53 2.50
C 9.22 3.66 3.53 0.38 0.38 5.000 - 4.998 0.656 0.56 3.31
D 13.75 4.86 5.91 0.43 0.43 6.000 - 5.998 1 0.813 4.26
Mount K - Keyway L M R.D U W Y Z Weight in lbs
A .125 x .250 --- --- --- 1.125 - 1.124 1.80 9 16/32 5.50
B .156 x .312 ---- --- 0.719 1.375 - 1.374 1.40 13 16/32 11.50
C .188 x .375 5.75 4.50 1.045 1.500 - 1.499 0.81 14 12/24 19.00
D .250 x .500 8.50 6.36 1.451 2.000 - 1.999 0.69 13 8/16 52.50

Overhung Load Adapters Bearing Load Ratings

The chart below is based on a standard L10 bearing life, with a continuous perpendicular load located halfway along its length (B/2). This chart represents the bearing load in pounds.
L 10 Revolutions Per Minute
500 1000 1500 2000 2500 3000
S.A.E. A - Mount 200 1005 797 697 633 588 553
500 740 588 513 466 433 407
1000 588 466 407 370 344 323
1960 469 373 326 296 275 258
3000 407 323 282 257 238 224
4100 367 291 255 231 215 202
5100 341 291 237 215 200 188
S.A.E. B - Mount 200 1125 893 780 709 658 619
500 829 658 575 522 485 456
1000 658 522 456 414 385 362
1960 526 417 365 331 307 289
3000 456 362 316 287 267 251
4100 411 326 285 259 240 226
5100 382 303 265 241 224 210
S.A.E. C - Mount 200 1638 1300 1136 1032 958 901
500 1207 958 837 760 706 664
1000 958 760 664 603 560 527
1960 765 607 531 482 448 421
3000 664 527 460 418 388 365
4100 598 475 415 377 350 329
5100 556 442 386 351 325 306
S.A.E. D - Mount 200 4902 3890 3399 3088 2866 2697
500 3611 2966 2504 2275 2112 1987
1000 2866 2275 1987 1806 1676 1577
1960 2290 1818 1588 1443 1339 1260
3000 1987 1577 1378 1252 1162 1094
4100 1791 1421 1242 1128 1047 986
5100 1665 1322 1155 1049 974 916

Non-Standard Overhung Load Adapters

We can custom design and build overhung load adaptors to your production requirements. Most transmission equipment is installed with the axis horizontal. When this equipment is installed with the axis VERTICAL and the input shaft assembly ABOVE the gear reducer or clutch, special provisions must be made for lubrication. Customizations can include:

  • Sealed Bearings
  • DIN Splines
  • Spherical Bearings
  • Special Shaft Configurations
  • Special Shaft Materials

Contact RMG factory office at 815-624-2500 for details, or submit the form below to Susan Friske.

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