Flexible Universal Joint
Angle Range: Up to 5° (torsional flexibility)
Material: Stainless Steel / Spring Steel / Polyurethane
Structure: Flexible Element / Bellows or Disc Type
Torque Capacity: 0.5 – 500 Nm
Bore Range: 3mm – 60mm
Speed Range: Up to 15000 rpm
Application: Precision encoders, servo couplings, small pumps, laboratory instruments, medical devices
WhatsApp: +86 18663551233
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Flexible universal joints use elastic elements—such as bellow couplings, disc springs, or elastomeric spiders—to transmit torque while absorbing small angular, parallel, and axial misalignments without backlash. Designed for light-duty, high-precision applications, these joints provide vibration damping and electrical isolation. They are widely used in encoder couplings, servo motor connections, small metering pumps, laboratory automation, and medical device drive trains where precision and zero backlash are paramount.
Technical Specifications
| Bearing No. | Bore (d) mm | Outer Dia. (D) mm | Width (B) mm | Dyn. Load Cr (kN) | Stat. Load Cor (kN) | Ref. Speed (rpm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| FJ-15 | 15 | 38 | 65 | 180 | 6000 | 5 | 0.30 |
| FJ-20 | 20 | 48 | 80 | 320 | 5000 | 5 | 0.55 |
| FJ-25 | 25 | 58 | 95 | 550 | 4200 | 5 | 0.90 |
| FJ-30 | 30 | 68 | 110 | 880 | 3500 | 5 | 1.40 |
| FJ-35 | 35 | 78 | 125 | 1350 | 2900 | 5 | 2.05 |
| FJ-40 | 40 | 88 | 140 | 1950 | 2400 | 5 | 2.90 |
| FJ-50 | 50 | 108 | 170 | 3800 | 1800 | 5 | 5.30 |
