Curved Jaw Coupling BC7-II is listed in the shaft couplings section of the Betre catalogue under the Shaft Coupling series. It is manufactured by YUEQING BETRE AUTOMATION CO., LTD. in Yueqing, Zhejiang, and supplied to automation machine builders and distributors in China and export markets.
The tables and drawings below are reproduced from the Betre product catalogue for this model.
| Model | Inner Dia | Outer Dia. | Length | L1 | L2 | L3 | Thread | Wrench Torque | |
| Min.(Ød1/Ød2) | Max.(Ød1/Ød2) | ØD | L | M | （N.m) | ||||
| BC7-C14-d1-d2 | 3 | 7 | 14 | 22 | 7.5 | 7 | 3.8 | M2.5 | 1.0 |
| BC7-C20-d1-d2 | 4 | 10 | 20 | 30 | 10.5 | 9 | 5.3 | M3 | 1.3 |
| BC7-C25-d1-d2 | 5 | 12 | 25 | 34 | 11.0 | 12 | 5.5 | M4 | 1.5 |
| BC7-C30-d1-d2 | 6 | 14 | 30 | 35 | 11.5 | 12 | 5.8 | M4 | 1.7 |
| BC7-C40-d1-d2 | 8 | 22 | 40 | 55 | 20.0 | 15 | 6.6 | M5 | 8.0 |
| BC7-C40L-d1-d2 | 8 | 22 | 40 | 66 | 25.5 | 15 | 9.1 | M5 | 8.0 |
| BC7-C55-d1-d2 | 12 | 30 | 55 | 78 | 31.0 | 16 | 11.0 | M6 | 8.0 |
| BC7-C65-d1-d2 | 14 | 36 | 65 | 90 | 35.5 | 19 | 12.0 | M8 | 15.0 |
| BC7-C80-d1-d2 | 20 | 45 | 80 | 114 | 46.0 | 22 | 16.5 | M8 | 15.0 |
| Model | Rated Torque (N.m) |
Max. torque (N.m) |
Max.Speed (rpm) |
Inertia Moment (kg.m²) |
Static torque rigidity (N.m/rad) |
Radial Misalignment (mm) |
Angular Misalignment (℃) |
Axial Misalignment (mm) |
Material |
Plate Material |
Surface Treatment |
Weight (g) |
| BC7-C14-d1-d2 | 1.1 | 2.2 | 18000 | 5.9x10-4 | 46 | 0.02 | 1.0 | -0.6/0 | high tensile aluminium alloy |
Germany Improted Ployurethane |
anodicoxidation treatment | 8 |
| BC7-C20-d1-d2 | 2.8 | 5.6 | 17000 | 6.7x10-4 | 55 | 0.02 | 1.0 | -0.6/0 | 21 | |||
| BC7-C25-d1-d2 | 6.0 | 12 | 16000 | 7.6x10-4 | 63 | 0.02 | 1.0 | -0.6/0 | 39 | |||
| BC7-C30-d1-d2 | 6.5 | 13 | 12000 | 8.5x10-4 | 72 | 0.02 | 1.0 | -0.6/0 | 55 | |||
| BC7-C40-d1-d2 | 32 | 64 | 10000 | 9.4x10-4 | 500 | 0.02 | 1.0 | -0.6/0 | 135 | |||
| BC7-C40L-d1-d2 | 32 | 64 | 10000 | 1.1x10-3 | 550 | 0.02 | 1.0 | -0.6/0 | 180 | |||
| BC7-C55-d1-d2 | 46 | 92 | 8000 | 4.4x10-3 | 1500 | 0.02 | 1.0 | -0.6/0 | 416 | |||
| BC7-C65-d1-d2 | 109 | 218 | 6000 | 9.0X10-3 | 2800 | 0.02 | 1.0 | -0.6/0 | 696 | |||
| BC7-C80-d1-d2 | 135 | 270 | 4600 | 1.8X10-2 | 3500 | 0.02 | 1.0 | -0.6/0 | 1270 |
Other parts from the same Shaft Coupling range, usually quoted alongside this one.
Curved Jaw Coupling BC7-II sits in the Shaft Couplings category of the Betre catalogue, under the Shaft Coupling series.
Yes. We offer OEM and ODM services according to customers' requirements and we make our own moulds and tooling.
Email [email protected] or [email protected] with the model code and quantity, or call +86-577-61712130. Our contact person is April Huang.
Yes. We do the inspection for all the products before delivery.
Our products sell all over China and in the international markets of European, North and South American countries, Southeast Asia and Oceania.
Send the quantity and any port thread or bore requirement, and we will confirm price and lead time.
