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High-Precision Small Telescopic Universal Joint | 42CrMo Needle Bearing Cross Shaft Coupling
Model Number
Check below, custom
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
High-Speed Precision for Automated Tapping & Drilling
Our Precision Small Cross-Shaft Telescopic Universal Joint is engineered for high-accuracy industrial applications. By incorporating needle bearings within the center block, this joint achieves exceptional rotational stability even at speeds up to 4000 RPM. Crafted from premium 42CrMo alloy steel, it provides the high torque and minimal backlash required for precision drilling and tapping equipment.
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Engineered for Extreme Durability
Needle Bearing Center Block: Designed for high-speed continuous operation, the internal needle bearings reduce friction and heat, allowing for a maximum speed of 4000 RPM.
Superior Material Hardness: The body is made of 42CrMo, while the pins utilize bearing steel with a hardness of HRC 55-58, ensuring the joint remains stable and wear-resistant under heavy loads.
H7 Precision Bore: Every unit features an H7 standard bore for a perfect fit, significantly reducing vibration and improving the service life of your machinery.
Zero Backlash Performance: Optimized for precision, these joints offer high torque with minimal clearance, making them ideal for the “start-stop” nature of tapping machines.
Full Customization Support: We offer a wide range of standard specifications in stock, including pin holes, card slots, and keyways, as well as non-standard customization based on your technical drawings.
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Technical Specifications
| Attribute | Specification Details |
| Material | 42CrMo Alloy Steel |
| Internal Structure | Needle Bearing / Cross Shaft |
| Max Speed | 4000 RPM |
| Pin Hardness | HRC 55-58 (Bearing Steel) |
| Joint Hardness | HRC 48-52 |
| Bore Precision | H7 Tolerance |
| Mounting Options | Keyway, Pin Hole, Set Screw |
Universal Joints (Single and Double)
| Model | Type | Outer Diameter (mm) | Length (mm) | Inner Diameter (mm) |
|---|---|---|---|---|
| UNKA8 | Single | 16 | 36 | 8 |
| UNKA10 | Single | 20 | 42 | 10 |
| UNKA12 | Single | 23 | 52 | 12 |
| UNKA14 | Single | 25 | 59 | 14 |
| UNKA16 | Single | 32 | 74 | 16 |
| UNKA20 | Single | 36 | 87 | 20 |
| UNAW8 | Double | 16 | 58 | 8 |
| UNKW10 | Double | 20 | 67.5 | 10 |
| UNKW12 | Double | 23 | 83 | 12 |
| UNKW14 | Double | 25 | 94.5 | 14 |
| UNKW16 | Double | 32 | 117.5 | 16 |
| UNKW20 | Double | 36 | 139 | 20 |
Telescopic Couplings (WSP Series)
| Model | Inner Diameter (mm) | Outer Diameter (mm) | Retracted Length (mm) | Extended Length (mm) |
|---|---|---|---|---|
| WSP-03GA | 12 | 20 | 140 | 170 |
| WSP-04GA | 12 | 25 | 160 | 190 |
| WSP-05GA | 14 | 28 | 170 | 200 |
| WSP-1GA | 16 | 32 | 190 | 220 |
| WSP-2GA | 18 | 36 | 230 | 280 |
| WSP-3GA | 20 | 42 | 250 | 300 |
| WSP-4GA | 22 | 45 | 250 | 280 |
| WSP-5GA | 25 | 50 | 295 | 345 |
| WSP-6GA | 30 | 58 | 330 | 380 |
| WSP-7GA | 35 | 70 | 350 | 400 |
Product Show
Precision Universal Joint
