NJ95 NYD95 ND80 Holdback Freewheel Backstop Clutch
NJ95 NYD95 ND80 Holdback Freewheel Backstop Clutch
Features of NYD NJ Backstop
Backstop NJ(NYD,ND) with torque arm are without ball bearings support. The Backstop are arranged on through shafts or shaft ends.
The backstop NJ are used as:
Backstops for low-speed applications.
They are designed for use in inclined conveyor-belt systems, elevators and pumps. Taconite seals protect the backstops when conditions are dirty and dusty.
MODELS NJ65-NJ450
Dimensions and Capacities
| Type | Load Capacity | Inner Race Max. Speed | Drag Torque | Bore | Size (mm) | Weight | ||||||||
| N.m | r/min | N.m | mm | A | B | D | H | h1 | Φ | h | L | L1 | kg | |
| ND16 (NJ65) | 1600 | 150 | 4 | 50-65 | 50 | 6 | 160 | 226 | 16 | 13.5 | 30 | 85 | 106 | 13.5 |
| ND25 (NJ75) | 2500 | 5 | 60-75 | 65 | 170 | 269 | 19 | 16.5 | 35 | 16.1 | ||||
| ND60 (NJ85) | 6000 | 8 | 70-85 | 95 | 9 | 210 | 329 | 29 | 20.5 | 45 | 110 | 135 | 29.2 | |
| ND80 (NJ95) | 8000 | 10 | 80-95 | 105 | 230 | 382 | 32 | 55 | 138 | 37.2 | ||||
| ND110 (NJ110) | 11000 | 15 | 90-110 | 110 | 12 | 270 | 425 | 40 | 26 | 60 | 141 | 46.2 | ||
| ND160 (NJ130) | 16000 | 100 | 20 | 100-130 | 120 | 320 | 506 | 36 | 65 | 130 | 161 | 82.8 | ||
| ND250 (NJ160) | 25000 | 35 | 120-160 | 120 | 20 | 360 | 612 | 32 | 31 | 140 | 183 | 125 | ||
| ND380 (NJ200) | 38000 | 45 | 160-200 | 130 | 430 | 623 | 43 | 41 | 70 | 160 | 207 | 180 | ||
| ND500 (NJ220) | 50000 | 80 | 75 | 160-220 | 238 | 259 | 500 | 820 | 80 | - | 230 | 303 | 351 | |
| ND650 (NJ230) | 65000 | 80 | 85 | 180-240 | 260 | 279 | 540 | 900 | 90 | - | 250 | 323 | 525 | |
| ND900 (NJ250) | 90000 | 50 | 95 | 180-250 | 288 | 323 | 600 | 1000 | 100 | - | 290 | 367 | 675 | |
| ND1250 (NJ270) | 125000 | 100 | 200-270 | 298 | 650 | 1100 | 110 | - | 737 | |||||
| ND1800 (NJ300) | 180000 | 110 | 230-300 | 356 | 335 | 780 | 1300 | 135 | - | 290 | 392 | 1123 | ||
| ND2700 (NJ320) | 270000 | 140 | 250-320 | 386 | 345 | 850 | 1500 | 135 | 320 | 412 | 1425 | |||
| ND3200 (NJ350) | 320000 | 160 | 250-350 | 414 | 360 | 930 | 1600 | 135 | 360 | 426 | 1955 | |||
| ND5200 (NJ420) | 520000 | 220 | 320-420 | 474 | 484 | 1030 | 1800 | 165 | 450 | 550 | 2930 | |||
| ND7000 (NJ450) | 700000 | 250 | 350-450 | 526 | 494 | 1090 | 2000 | 165 | 480 | 574 | 3380 | |||
Mounting
The back driving torque is restrained by the torque arm. The torque arm must not be clamped into position. It must have 0.5 inch play in the axial and in the radial direction.
NJ backstops are supplied for a clearance fit. Set screws on the inner ring are provided for axial retention, shaft collars are not required.
Piciures
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