Becker Interchange
Asymmetric Variable Speed Belt Drives - 0.25 to 30 KW (With Automatic Torque Sensing Device)
Assymetric Drive is suitable for 0.25 to 30 Kw motor ratings. The stepless output Speed Range in case of 1440 RPM Motor is from 425 to 4500 RPM. This drive is consisting of driveR Pulley (Mounted on Motor Shaft), driveN Pulley (Mounted on Gear Box/ Machine Shaft) and a Belt. DriveR Pulley is mechanically adjusted by means of screw spindle to achieve speed Variation and driveN Pulley gets automatically adjusted.
The drive has unique features of "Automatic Torque Sensing Device", which ensures optimum automatic axial contact pressure on the Belt, depending on rating of power to be transferred. Greater the torque, greater the Contact Pressure. This ensures that the belt does not slip during the intermittent operation, under excessive load or when the machine starts with flywheel effect. These features of the system guarantees very high efficiency, even under partial load and longer belt life.
Special Features
1) Disc mounted on Hub without key or splines thus minimises the wear.
2) Speed Variation Ratio 11: 1.
3) Life time LubricatedSpeed adjustment while the machine is in operation.
4) Dynamically balancedFinish bore with Keyway.
Assymetric Selection Table - Motor Power & speed range
Motor Power | Drive ASM | Output Speed Range | Working P.C.D. | Variable Speed Belt | Bore Size | ||||
1400 R.P.M. | SIZE | Min. | Max. | Min. | Max. | Width x Th | Min. | Std. | Max. |
0.25 / 0.75 Kw | Asm 130 | 540 | 3750 | 47 | 126 | 22x8 | 14 | 19 | 25 |
1.1 / 1.5 Kw | Asm 150 | 480 | 4320 | 47 | 146 | 22x8 | 14 | 24 | 25 |
2.2 / 3.7 Kw | Asm 210 | 425 | 4500 | 60 | 205 | 32x10 | 19 | 28 | 32 |
5.5/7.5 Kw | Asm 245 | 425 | 4500 | 70 | 240 | 37x10 | 24 | 38 | 40 |
11/15Kw | Asm 285 | 415 | 4500 | 80 | 278 | 47x13 | 28 | 42 | 45 |
18/22/30 Kw | Asm 345 | 427 | 4500 | 100 | 337 | 52x16 | 38 | 48 | 60 |
Dimensions For Bore Size
Drive Size | A | B | C | D |
|---|---|---|---|---|
ASM 130 | 130 | 95 | 195 | Refer to next table For Belt Selection |
ASM 150 | 150 | 95 | 210 | |
ASM 210 | 210 | 122 | 250 | |
ASM 245 | 245 | 165 | 265 | |
ASM 285 | 285 | 185 | 293 | |
ASM 345 | 345 | 225 | 358 |
Belt Selection
Drive Size | 650 | 700 | 750 | 800 | 850 | 900 | 950 | 1000 | 1060 | 1120 | 1180 | 1250 | 1320 | 1400 | 1500 | 1600 | 1700 | 1800 | 2000 | 2240 | 2500 |
Center Distance Between Motor Shaft & Gear Box / Machine Shaft | |||||||||||||||||||||
ASM 130 | 203 | 228 | 253 | 278 | 303 | 328 | 353 | 378 | 408 | . | . | . | . | . | . | . | . | . | . | . | . |
ASM 150 | 185 | 210 | 235 | 261 | 286 | 312 | 337 | 362 | 393 | 423 | 453 | 488 | 523 | 564 | . | . | . | . | . | . | . |
ASM 210 | . | . | . | . | . | 254 | 280 | 305 | 336 | 366 | 396 | 432 | 467 | 508 | 558 | 609 | 659 | . | . | . | . |
ASM 245 | . | . | . | . | . | . | . | . | 297 | 327 | 358 | 394 | 429 | 470 | 520 | 571 | 621 | . | . | . | . |
ASM 285 | . | . | . | . | . | . | . | . | . | . | . | 360 | 395 | 436 | 486 | 537 | 588 | 638 | 740 | 860 | 991 |
ASM 345 | . | . | . | . | . | . | . | . | . | . | . | . | . | 375 | 426 | 477 | 528 | 579 | 680 | . | . |