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CKZ-B Sprag Freewheel Backstop Overrunning Clutch
Technical Datas
| Item | CKZ-B |
| Material | GCr15 |
| Bore dia. | 25-80 mm |
| Outer dia. | 110-300 mm |
| Width (B) | 68-136 mm |
| Torque capacity | 404-7500 N.m |
| Weight | 3.98-57.17 kg |
| Package | Carton box, wooden box or as your requirements |
Brief Introduction
Type CKZ-B is sprag type freewheels. It is self contained, sealed, bearing supported, and using two ball bearings. The unit is with lubricated oil or grease according to different requirements.
The inner race is keyed to the shaft, the outer race has positive h7 tolerance to give a press fit in housing to H7 and it is screwed to the bond.
This item is widely used in machinery of packing, traffic, metallurgy, mine and so on, used as backstop or overrunning function in dual drives.
Dimensions and Capacities
| Type | Nominal Torque [N.m] | Overrunning Limited Speed [r/min] | Dimension In Contour [mm] | Weight [kg] | |||||||||||
| Outer Race Size | Inner Race Size | ||||||||||||||
| inner race | outer race | D[h7] | D1[H7] | B | F | n-M | E | H | d[H7] | C | bn×tn | e | |||
| CKZ-B25110 | 404 | 700 | 300 | 110 | 80 | 68 | 95 | 6-M8 | 15 | 20 | 25 | 70 | 10×3.3 | 4.5 | 3.98 |
| CKZ-B35130 | 825 | 560 | 250 | 130 | 90 | 85 | 100 | 6-M10 | 15 | 25 | 35 | 87 | 10×3.3 | 4.5 | 7.01 |
| CKZ-B45150 | 1464 | 490 | 200 | 150 | 110 | 90 | 130 | 6-M10 | 20 | 25 | 45 | 92 | 14×3.8 | 4.5 | 9.69 |
| CKZ-B50165 | 1830 | 420 | 150 | 165 | 120 | 92 | 145 | 6-M12 | 20 | 25 | 50 | 97 | 14×3.8 | 5 | 12.36 |
| CKZ-B50180 | 2990 | 420 | 150 | 180 | 125 | 106 | 160 | 6-M12 | 20 | 25 | 50 | 108 | 16×3.8 | 5 | 16.51 |
| CKZ-B60200 | 3494 | 350 | 120 | 200 | 150 | 115 | 180 | 6-M12 | 25 | 25 | 60 | 117 | 20×4.9 | 6 | 22.02 |
| CKZ-B70240 | 4920 | 350 | 120 | 240 | 170 | 122 | 210 | 6-M14 | 25 | 30 | 70 | 124 | 22×5.4 | 6 | 34.65 |
| CKZ-B75260 | 5760 | 280 | 100 | 260 | 200 | 130 | 230 | 6-M18 | 25 | 35 | 75 | 138 | 22×5.4 | 8 | 42.38 |
| CKZ-B80300 | 7500 | 280 | 100 | 300 | 230 | 136 | 265 | 6-M18 | 25 | 35 | 80 | 138 | 22×5.4 | 8 | 57.17 |
| CKZ-B25100 | 400 | 750 | 350 | 100 | 75 | 80 | 88 | 6-M8 | 10 | 16 | 25 | 82 | 8×3.3 | 4.5 | 2.62 |
| CKZ-B28105 | 400 | 700 | 300 | 105 | 80 | 68 | 95 | 6-M8 | 15 | 16 | 28 | 70 | 10×3.3 | 4.5 | 2.75 |
| CKZ-B3090 | 350 | 800 | 380 | 90 | 62 | 49 | 75 | 6-M6 | 10 | 15 | 30 | 50 | 8×2.0 | 4 | 4.86 |
| CKZ-B3290 | 380 | 800 | 380 | 90 | 65 | 60 | 80 | 8-M6 | 10 | 16 | 32 | 60 | 10×3.7 | 4 | 4.32 |
| CKZ-B30110 | 404 | 700 | 300 | 110 | 80 | 68 | 95 | 6-M8 | 15 | 16 | 30 | 70 | 10×3.3 | 4.5 | 3.91 |
| CKZ-B32125 | 1021 | 560 | 250 | 125 | 95 | 90 | 110 | 8-M8 | 15 | 12 | 32 | 92 | 10×3.3 | 4.5 | 6.53 |
| CKZ-B35115 | 800 | 700 | 300 | 115 | 72 | 78 | 95 | 6-Φ11 | 15 | 35 | 78 | 10×3.3 | 4.5 | 4.63 | |
| CKZ-B40125 | 800 | 600 | 300 | 125 | 95 | 76 | 110 | 6-M8 | 15 | 18 | 40 | 80 | 12×3.3 | 4.5 | 5.60 |
| CKZ-B45190 | 2150 | 380 | 130 | 190 | 130 | 86 | 160 | 4-Φ14 | 20 | 45 | 86 | 14×3.8 | 6 | 17.5 | |
| CKZ-B55155 | 1735 | 490 | 200 | 155 | 125 | 100 | 140 | 8-M8 | 20 | 20 | 55 | 102 | 16×4.3 | 5 | 10.96 |
| CKZ-B55175 | 1800 | 420 | 150 | 175 | 110 | 79 | 155 | 6-M10 | 20 | 15 | 55 | 87 | 16×4.3 | 5 | 14.92 |
| CKZ-B60180 | 3100 | 420 | 150 | 180 | 140 | 124 | 158 | 8-M10 | 25 | 20 | 60 | 128 | 18×4.4 | 6 | 17.25 |
| CKZ-B65180 | 3100 | 420 | 150 | 180 | 140 | 122 | 158 | 8-M10 | 25 | 20 | 65 | 124 | 18×4.4 | 6 | 16.68 |
| CKZ-B80160 | 1830 | 420 | 150 | 180 | 130 | 100 | 145 | 6-M8 | 25 | 20 | 80 | 112 | 22×5.4 | 6 | 11.42 |
Mounting Example
Applications of one way clutch bearing:
One Way Clutches Sprag Type mainly used as Backstop clutches
Reducers,Flender Gearbox,SEW Gearbox
Overrunning clutch: for multiple-machine drives or to separate the inertia of masses of a driven machine from the driving machine after it has been switched off.
Indexing clutch: which turns a shaft step by step, thus achieving indexed material feed or a variable speed.
