Stainless steel 8mm to 19mm jaw coupling, corrosion resistant and high hardness, surface polishing, widely used in 3D printers, DIY encoders, CNC routers, machines, servo stepping motors, etc.
Specification
- Model: CHN-SC-GFCG-3550
- Rated Torque: 21 Nm
- Eccentricity Allowed: 0.02mm
- Bore: 8 to 19mm
- Allowable Declination: 1∠°
- Allowable Axial Deviation: ±0.60mm
- Allowable Speed: 10000rpm
- Static Torsional Stiffness: 200 Nm/rad
- Moment of Inertia: 8.1 x 10-6 Nm
- Bushing Material: 304 Stainless steel
- Rubber Block Material: Polyurethane imported from Germany
- Surface Treatment: Polished
- Weight: 185g
- Certificate: ISO9001, REACH, RoHS
- Warranty: 12 Months
30mm x 50mm Jaw Coupling Dimension (unit: mm)

- d1/d2 Inner Diameter Size: 5-6-6.35-7-8-9-10-11-12-12.7-14-15-16-17-18-19
- ΦD: 35
- L: 50
- LF: 30
- LP: 11.5
- F: 6.5
- M: M5
- Tightening Torque: 8 Nm
Tips: Safe use of coupling
- The coupling is not allowed to exceed the specified axis line skew and radial displacement, so as not to affect its transmission performance.
- The bolts of the coupling shall not be loose or damaged; the keys of the coupling shall be closely matched and shall not be loose.
- The gear coupling and the Oldham coupling should be lubricated regularly, and grease should be added once every 2 to 3 months, so as to avoid severe wear of the gear teeth and cause serious consequences.
- The contact length of the tooth width of the gear coupling shall not be less than 70%, and its axial movement shall not exceed 5mm.
- The coupling is not allowed to have cracks. If there are cracks, it needs to be replaced (it can be hit with a small hammer, and judged according to the sound).
- The tooth thickness of the gear coupling is worn. When the wear amount of the lifting mechanism exceeds 15% of the original tooth thickness, the running mechanism should be scrapped when it exceeds 25%, and it should be scrapped when there are broken teeth.
- If the elastic ring of the pin coupling and the sealing ring of the gear coupling are damaged and aged, they should be replaced in time.
Flexible jaw coupling size 35mm x 50mm, bore 8mm to 19mm, large bearing capacity, long service life, compensation for the relative offset of the two axes, shock absorption, wear resistance and buffering performance.