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| Categories | Metal Shaft Coupling | 
|---|---|
| Brand Name: | Tianniu | 
| Model Number: | GM series | 
| Certification: | ISO-9001 | 
| Place of Origin: | China | 
| MOQ: | 2 pcs | 
| Price: | Negotiable | 
| Payment Terms: | T/T, Western Union, MoneyGram, L/C, D/A, D/P | 
| Supply Ability: | 10000 per month | 
| Delivery Time: | 5-7 working days | 
| Packaging Details: | Cartons by sea shipping by Airplane | 
| Model: | GM screw thread setscrew coupling winding coupling | 
| Material: | Aluminum alloy | 
| Bore size: | 12-50mm | 
| Warranty: | 12 months | 
| Elastomer materia: | PA66 | 
| Surface Treatment: | Anodic oxidation treatment | 
| Company Info. | 
| Changzhou Tianniu Transmission Equipment Co., Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Products Features
Shaft Couplings are divided into the following most common categories according to type:
 Metal diaphragm coupling: suitable for servo motors, encoders, planetary reducers, ball screws, compressors, mixers, paper machinery, robots and other mechanical equipment. Plum-shaped coupling: suitable for encoders, servo systems, motor spindle drives, packaging machinery, machine tool drives, pumps and other machinery. Bellows coupling: suitable for encoders, CNC machine tools, positioning systems, ball screws, indexing discs, planetary gear reducers. Spring coupling: suitable for rotary encoders, stepper motors, screw rods, etc. Parallel coupling: suitable for connection of stepper motors, encoders, screw rods, etc. Cross slide coupling: suitable for tachometer, encoder, screw, machine tool and other machinery. Universal coupling, rigid coupling.
>Integrated structure, the overall use of high-strength aluminum alloy materials
 >Elastic action compensates radial, angular and axial deviation
 >Spring design, with buffer effect
 >Special design for encoder, micro motor
 >Fastening method of set screw
Products Parameters

| model parameter | common bore diameter d1,d2 | ΦD | L | L1 | L2 | F | M | tightening screw torque (N.M)  |  		
| GM-12xl8.5 | 2,3,4,5,6,6.35 | 12 | 18.5 | 1.8 | 0.4 | 3.5 | M3 | 0.7 | 
| GM-15.5x21 | 3,4,5,6,6.35,7 | 15.5 | 21 | 2 | 0.4 | 3.3 | M3 | 0.7 | 
| GM-15.5x23 | 3,4,5,6,6.35,7 | 15.5 | 23 | 2 | 0.4 | 3.6 | M3 | 0.7 | 
| GM-19.1x19.1 | 4,5,6,6.35,7,8 | 17.5 | 23 | 2 | 0.4 | 3.6 | M4 | 1.7 | 
| GM-17.5x23 | 4,5,6,6.35,7,8,10 | 19.1 | 19.1 | 2 | 0.4 | 3 | M4 | 1.7 | 
| GM-19.5x24.5 | 6,6.35,7,8,9,9.525,10 | 19.5 | 24.5 | 2 | 0.4 | 3.3 | M4 | 1.7 | 
| GM-25x32 | 5,6,6.35,7,8,9,9.525,10,11,12,12.7 | 25 | 32 | 2 | 0.4 | 3.7 | M4 | 1.7 | 
| GM-25.4x25.4 | 6,6.35,7,8,9,9.525,10,11,12,12.7 | 25.4 | 25.4 | 2 | 0.4 | 3.7 | M4 | 1.7 | 
| GM-28.6x28.6 | 8,9,9.525,10,11,12,12.7,14 | 28.6 | 28.6 | 2.75 | 0.4 | 4.2 | M4 | 1.7 | 
| GM-32x32 | 8,9,9.525,10,11,12,12.7,14,15,16,17,18 | 32 | 32 | 2.75 | 0.4 | 5.5 | M4 | 1.7 | 
| GM-32x41 | 8,9,9.525,10,11,12,12.7,14,15,16,17,18 | 32 | 41 | 2.75 | 0.4 | 6.8 | M4 | 1.7 | 
| GM-38.7x38.1 | 8,10,11,12,12.7,14,15,16,17,18,19,20,22 | 38.1 | 38.1 | 3 | 0.4 | 5.2 | M5 | 4 | 
| GM-42x50 | 12,12.7,14,15,16,17,18,19,20,22,24,25,28 | 42 | 50 | 3.5 | 0.4 | 8.5 | M6 | 7 | 
| GM-50x50 | 12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32 | 50 | 50 | 3.5 | 0.5 | 8.5 | M6 | 7 | 
| model parameter | Rated torque (N.M)*  |  			allowable eccentricity (mm)*  |  			allowable deflection angle (°)*  |  			allowable axial deviation (mm)*  |  			maximum speed rpm  |  			static torsional stiffness (N.M/rad)  |  			moment of inertia (Kg.M2)  |  			Material of shaft sleeve | surface treatment | weight (g)  |  		
| GM-12xl8.5 | 0.3 | 0.15 | 3 | ±0.2 | 30000 | 40 | 8.0x10-7 | High strength aluminum alloy | Anodizing treatment | 4 | 
| GM-15.5x21 | 0.5 | 0.15 | 3 | ±0.2 | 25000 | 80 | 2.8x10-7 | 7.7 | ||
| GM-15.5x23 | 0.5 | 0.15 | 3 | ±0.2 | 25000 | 50 | 2.9x10-7 | 9.3 | ||
| GM-17.5x23 | 0.6 | 0.15 | 3 | ±0.2 | 25000 | 85 | 3.5x10-7 | 12.7 | ||
| GM-19.1x19.1 | 0.9 | 0.15 | 3 | ±0.2 | 24000 | 130 | 7.2x10-7 | 11.6 | ||
| GM-19.5x24.5 | 1 | 0.15 | 3 | ±0.2 | 19000 | 150 | 8.1x10-7 | 16 | ||
| GM-25x32 | 2 | 0.15 | 3 | ±0.2 | 15000 | 300 | 3.5x10-7 | 32 | ||
| GM-25.4x25.4 | 2 | 0.15 | 3 | ±0.2 | 14000 | 360 | 2.3x10-6 | 26 | ||
| GM-28.6x28.6 | 2 | 0.15 | 3 | ±0.2 | 14000 | 380 | 2.3x10-6 | 39 | ||
| GM-32x32 | 3 | 0.15 | 3 | ±0.2 | 13000 | 380 | 2.5x10-6 | 57 | ||
| GM-32x41 | 4 | 0.15 | 3 | ±0.2 | 12000 | 450 | 9.6x10-6 | 65 | ||
| GM-38.7x38.1 | 6.5 | 0.15 | 3 | ±0.2 | 9500 | 400 | 2.7x10-5 | 97 | ||
| GM-42x50 | 8 | 0.15 | 3 | ±0.2 | 9000 | 500 | 7.2x10-3 | 185 | ||
| GM-50x50 | 20 | 0.15 | 3 | ±0.2 | 8000 | 785 | 8.1x10-5 | 220 |  		
                                 
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