WJ Drum Coupling is a spherical roller coupling, which is composed of jacket with connecting flange, spherical roller, semi-coupling, inner and outer cover plate and sealing system, capable of transmitting large torque and bearing radial load.

| Model | Nominal Torque Tn KN ·m | Allowable Radial Force KN | Internal Spline d | D | D1 | D2 h6 | D3 | nxd1 | d2 G6 | d3 G6 | S h9 | L | L | L1 | L2 | L3 | L4 | L5 | L6 | r | C | Wear Scale m | Rotational Inertia kg ·m2 | Quality kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WJ1 | 5 | 16.5 | INT16Z×2.5m | 250 | 220 | 160 | 一 | 10×φ14 | 35 | 45 | 220 | 80 | 0 | 42 | 12 | 12 | 12 | 30 | 18 | 2 | 1.6 | 4 | 0.06 | 13.2 |
| INT17Zx2.5m | 38 | 48 | 12.2 | |||||||||||||||||||||
| WJ2 | 7.1 | 18.5 | INT17Z×2.5m | 280 | 250 | 180 | 一 | 10×φ14 | 38 | 48 | 250 | 80 | 0 | 42 | 12 | 24 | 22 | 30 | 18 | 2 | 1.6 | 4 | 0.12 | 19.8 |
| INT15Zx3m | 40 | 50 | 18.8 | |||||||||||||||||||||
| WJ3 | 9 | 20 | INT15Z×3m | 320 | 280 | 200 | 一 | 10×φ18 | 40 | 50 | 280 | 84 | 0 | 45 | 13 | 25 | 22 | 30 | 22 | 2.2 | 1.6 | 4 | 0.20 | 22.1 |
| INT18Z×3m | 50 | 60 | 2 | 21.8 | ||||||||||||||||||||
| WJ4 | 14 | 25 | INT18Z×3m | 340 | 300 | 220 | 一 | 10×φ18 | 50 | 60 | 300 | 92 | 0 | 45 | 15 | 25 | 22 | 30 | 30 | 2.2 | 2 | 4 | 0.27 | 28.9 |
| INT22Z×3m | 60 | 70 | 35 | 25 | 28.8 | |||||||||||||||||||
| WJ5 | 18 | 35 | INT22Zx3m | 360 | 320 | 240 | 一 | 10xφ18 | 60 | 70 | 320 | 92 | 0 | 45 | 15 | 25 | 22 | 35 | 25 | 2.2 | 2 | 6 | 0.36 | 35 |
| INT27Z×3m | 70 | 85 | 97 | 40 | 2.5 | 34 | ||||||||||||||||||
| WJ6 | 22.4 | 38.5 | INT27Z×3m | 380 | 340 | 260 | 一 | 10×φ18 | 70 | 85 | 340 | 97 | 0 | 45 | 15 | 25 | 22 | 40 | 25 | 2.2 | 2.5 | 6 | 0.48 | 40 |
| INT18Z×5m | 80 | 100 | 127 | 37 | 50 | 41 | ||||||||||||||||||
| WJ7 | 28 | 42 | INT18Z×5m | 400 | 360 | 280 | 150 | 10×φ18 | 80 | 100 | 360 | 127 | 10 | 57 | 15 | 33 | 37 | 50 | 25 | 3 | 2.5 | 6 | 0.60 | 51 |
| INT22Z×5m | 100 | 120 | 137 | 0 | 55 | 30 | 47 | |||||||||||||||||
| WJ8 | 35.5 | 49 | INT22Z×5m | 420 | 380 | 310 | 168 | 10xφ18 | 100 | 120 | 380 | 137 | 20 | 77 | 15 | 33 | 37 | 55 | 30 | 3 | 2.5 | 6 | 0.86 | 59 |
| INT26Z×5m | 120 | 140 | 157 | 0 | 70 | 35 | 3 | 57 | ||||||||||||||||
| WJ9 | 50 | 70 | INT26Z×5m | 450 | 400 | 340 | 215 | 10×φ22 | 120 | 140 | 400 | 157 | 0 | 87 | 20 | 28 | 37 | 70 | 35 | 3 | 3 | 6 | 1.32 | 78 |
| INT30Z×5m | 140 | 160 | 167 | 75 | 40 | 75 | ||||||||||||||||||
| WJ10 | 100 | 120 | INT30Z×5m | 550 | 500 | 420 | 260 | 10×φ22 | 140 | 160 | 500 | 167 | 20 | 95 | 20 | 38 | 37 | 75 | 40 | 3 | 3 | 8 | 3.44 | 129 |
| INT34Z×5m | 160 | 180 | 182 | 0 | 85 | 45 | 126 | |||||||||||||||||
| WJ11 | 160 | 140 | INT34Z×5m | 580 | 530 | 450 | 285 | 14×φ22 | 160 | 180 | 530 | 182 | 0 | 95 | 20 | 38 | 37 | 85 | 45 | 3 | 3 | 8 | 4.23 | 151 |
| INT38Z×5m | 180 | 200 | 192 | 95 | 4 | 146 | ||||||||||||||||||
| WJ12 | 224 | 170 | INT38Z×5m | 650 | 600 | 530 | 315 | 14×φ22 | 180 | 200 | 580 | 192 | 15 | 120 | 25 | 33 | 37 | 95 | 45 | 3 | 4 | 8 | 7.52 | 210 |
| INT26Z×8m | 190 | 222 | 207 | 0 | 105 | 205 | ||||||||||||||||||
| WJ13 | 355 | 300 | INT26Z×8m | 680 | 630 | 560 | 385 | 26×φ22 | 190 | 222 | 600 | 207 | 0 | 120 | 25 | 35 | 37 | 105 | 45 | 4 | 4 | 8 | 9.81 | 236 |
| INT30Z×8m | 220 | 254 | 222 | 120 | 5 | 229 | ||||||||||||||||||
| WJ14 | 500 | 340 | INT30Z×8m | 710 | 660 | 600 | 395 | 26×φ26 | 220 | 254 | 640 | 222 | 15 | 140 | 35 | 43 | 37 | 120 | 45 | 4 | 5 | 8 | 14.76 | 301 |
| INT34Z×8m | 250 | 286 | 237 | 0 | 135 | 293 | ||||||||||||||||||
| WJ15 | 630 | 380 | INT34Z×8m | 780 | 730 | 670 | 445 | 26×φ26 | 250 | 286 | 700 | 237 | 25 | 160 | 35 | 43 | 37 | 135 | 45 | 4 | 5 | 8 | 24.14 | 398 |
| INT38Z×8m | 280 | 318 | 262 | 0 | 150 | 55 | 395 | |||||||||||||||||
| WJ16 | 710 | 450 | INT38Z×8m | 850 | 800 | 730 | 445 | 26×φ26 | 280 | 318 | 760 | 262 | 25 | 180 | 35 | 43 | 37 | 150 | 55 | 4 | 5 | 8 | 34.40 | 483 |
| INT44Z×8m | 320 | 366 | 287 | 0 | 170 | 60 | 6 | 451 | ||||||||||||||||
| WJ17 | 900 | 520 | INT44Z×8m | 950 | 900 | 840 | 585 | 26×φ26 | 320 | 366 | 860 | 287 | 25 | 200 | 45 | 55 | 37 | 170 | 60 | 4 | 6 | 8 | 74.63 | 797 |
| INT50Z×8m | 360 | 420 | 352 | 0 | 52 | 220 | 8 | 793 |
The WJ drum coupling is a specially designed coupling, primarily used for connecting the reducer of cranes and lifting mechanisms to the drum, as well as for connecting other similar mechanisms.
WJ drum couplings are primarily categorized into two types: WJ and WJA.
WJ type: Adopting internal spline connection method.
WJA type: It adopts the shaft-hole single-key connection method.
Structurally, the WJ barrel coupling consists of outer sleeve, spherical roller, half-coupling, inner sleeve, outer cover, and other components. These components work together to ensure that the coupling can transmit torque stably and reliably and support radial loads.
Compact structure: The WJ drum coupling features a compact structural design, resulting in a small size that facilitates installation and maintenance.
Stable operation: The spherical roller design effectively compensates for the relative displacement between the two axes, ensuring stability during operation.
High reliability: Through precise manufacturing and rigorous testing, the WJ drum coupling exhibits high reliability and can meet the operational demands under various harsh working conditions.
Easy installation: The installation process of the coupling, reducer, and drum is simple and fast, reducing installation time and cost.
The main parameters of the WJ barrel coupling include nominal torque, allowable radial force, internal spline, outer diameter, etc. Different models of WJ barrel couplings have varying parameters and dimensions, allowing users to select the appropriate model based on their specific needs.
WJ drum couplings are widely used in cranes, lifting mechanisms, and other fields, serving as key components for transmitting torque and supporting radial loads. Their compact structure, stable performance, and high reliability enable them to exhibit excellent performance under various harsh working conditions.
To ensure the long-term stable operation of the WJ drum coupling, users need to carry out regular maintenance and upkeep. This mainly includes checking the mating surfaces for burrs, oil stains, etc., cleaning the anti-rust grease, controlling the heating time and temperature during heating installation, measuring the distance between the reducer end face and the drum end face to ensure that the difference is not greater than the specified value, and regularly inspecting and replacing worn parts.
The WJ drum coupling is a crucial component characterized by its compact structure, stable operation, and high reliability. It is widely used in cranes, lifting mechanisms, and other fields. Users should pay attention to regular maintenance and upkeep during use to ensure its long-term stable operation.
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