Features
Complete Freewheels BD … R are sealed
freewheels with rollers and ball bearings. They
are supplied oil-filled.
The freewheels BD … R are used as:
➧ Backstops
➧ Overrunning Clutches
➧ Indexing Freewheels
Nominal torques up to 57 500 Nm.
Bores up to 150 mm.
Application example
Complete Freewheels BD 28 R as overrunning clutches in the roller conveyor of a continuous heating furnace system. The steel billets must run through the furnace at increasing speed. In order to achieve this, overrunning clutches with sprockets on both sides are arranged on the drive side of the transport rollers. The driven sprocket has in each case two teeth less than the driving sprocket. Therefor the speed increases from roller to roller. The length of the steel billet covers several rollers, all running at differ ent speeds. The freewheels allow the slower rollers to adjust to the speed of the billet by overrunning their drive.
Freewheel Size | Type | Nominal torque | M | ax. Speed | Bore d | B | D | F | G** | H | K | L | R | S | T | Z** | Weight | ||
BD | 12 | R | 150 | 1 750 | 3 500 | 15 | 15 | 60,5 | 71 | 0,75 | M 5 | 25 | 3 | 68 | 45 | 1,5 | 56 | 4 | 1,5 |
BD | 15 | R | 230 | 1 650 | 3 300 | 20 | 20 | 62,5 | 81 | 0,75 | M 5 | 25 | 3 | 70 | 50 | 1,5 | 65 | 4 | 2,0 |
BD | 18 | R | 340 | 1 550 | 3 100 | 25 | 25 | 62,5 | 96 | 0,75 | M 5 | 25 | 3 | 70 | 60 | 1,5 | 80 | 6 | 2,9 |
BD | 20 | R | 420 | 1 450 | 2 900 | 30 | 30 | 65,5 | 106 | 0,75 | M 6 | 26 | 5 | 77 | 70 | 0,5 | 90 | 6 | 3,8 |
BD | 25 | R | 800 | 1 250 | 2 500 | 40 | 40 | 81,5 | 126 | 0,75 | M 6 | 30 | 5 | 93 | 80 | 0,5 | 105 | 6 | 6,6 |
BD | 28 | R | 1 200 | 1 100 | 2 200 | 45 | 45 | 81,5 | 136 | 0,75 | M 8 | 30 | 6 | 95 | 90 | 1,5 | 115 | 6 | 7,8 |
BD | 30 | R | 1 600 | 1 000 | 2 000 | 50 | 50 | 88,5 | 151 | 0,75 | M 8 | 36 | 6 | 102 | 100 | 1,5 | 130 | 6 | 10,3 |
BD | 35 | R | 1 800 | 900 | 1 800 | 55 | 55 | 96,5 | 161 | 0,75 | M 8 | 35 | 6 | 110 | 110 | 1,5 | 140 | 6 | 12,5 |
BD | 40 | R | 3 500 | 800 | 1 600 | 60 | 60 | 102,5 | 181 | 0,75 | M 10 | 37 | 6 | 116 | 120 | 3,5 | 160 | 6 | 17,4 |
BD | 45 | R | 7 100 | 750 | 1 500 | 70 | 70 | 115,5 | 196 | 1,25 | M 12 | 38 | 6 | 130 | 130 | 5,0 | 170 | 8 | 22,4 |
BD | 50 | R | 7 500 | 700 | 1 400 | 75 | 75 | 117,5 | 206 | 1,25 | M 12 | 39 | 6 | 132 | 140 | 5,0 | 180 | 8 | 24,2 |
BD | 52 | R | 9 300 | 650 | 1 300 | 80 | 80 | 130,5 | 216 | 1,75 | M 14 | 44 | 8 | 150 | 150 | 4,5 | 190 | 8 | 31,1 |
BD | 55 | R | 12 500 | 550 | 1 100 | 90 | 90 | 146,5 | 246 | 1,75 | M 14 | 48 | 10 | 170 | 160 | 2,5 | 215 | 8 | 45,6 |
BD | 60 | R | 14 500 | 500 | 1 000 | 105 | 182,5 | 291 | 1,75 | M 14 | 55 | 10 | 206 | 190 | 2,5 | 250 | 8 | 78,2 | |
BD | 70 | R | 22 500 | 425 | 850 | 120 | 192,5 | 321 | 1,25 | M 16 | 58 | 10 | 215 | 210 | 5,0 | 280 | 8 | 93,4 | |
BD | 80 | R | 25 000 | 375 | 750 | 130 | 200,5 | 351 | 1,75 | M 16 | 60 | 10 | 224 | 220 | 4,5 | 310 | 8 | 116,8 | |
BD | 90 | R | 33 500 | 350 | 700 | 140 | 210,5 | 371 | 2,75 | M 16 | 68 | 10 | 236 | 240 | 3,5 | 330 | 10 | 136,7 | |
BD | 95 | R | 35 000 | 300 | 600 | 150 | 223,5 | 391 | 2,75 | M 16 | 79 | 10 | 249 | 250 | 3,5 | 345 | 10 | 159,3 | |
BD 100 | R | 57 500 | 250 | 500 | 150 | 248,5 | 411 | 3,75 | M 20 | 79 | 10 | 276 | 270 | 6,5 | 365 | 10 | 198,4 |
The maximum transmissible torque is 2 times the specified nominal torque. See page 14 for determination of selection torque.
Keyway according to DIN 6885, page 1 • Tolerance of keyway width JS10.
** Z = Number of tapped holes G on pitch circle T.
Mounting | Example for ordering Freewheel size BD 40, standard type with bore 60 mm: • BD 40 R, d = 60 mm |
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