A universal joint allows a rigid rod or shaft to transmit rotation even when the shaft is bent or offset at an angle. It consists of two hinges located close together that are oriented at 90 degrees to each other and connected by a cross shaft. Universal joints are used to transmit torque from one shaft to another that are offset from each other. They are made from heat treated alloy steels to withstand high loads and precision machining ensures optimal performance under severe conditions. Common types include single, double, and expandable universal joints available in diameters from 13 to 63 mm.

1. WHAT IS A UNIVERSAL JOINT?
A universal joint, universal
coupling, U-joint, Cardan joint, HardySpicer joint, or Hooke's joint is a joint or
coupling in a rigid rod that allows the rod to
'bend' in any direction, and is commonly
used in shafts that transmit rotary motion. It
consists of a pair of hinges located close
together, oriented at 90° to each
other, connected by a cross shaft.

2. Expandable Universal Joints
Universal joints are used to transmit torque from one shaft to another which are offset to
each other. It is an ideal form of coupling two shafts when offset is unavoidable.
Universal joints are made from heat treated alloy steels for increased over load and
reliability. Precision machining ensures optimum performance under severe load
conditions.
UE expandable
OD from 20 to 63 mm bore. All universal joints are available with types plain bore, bore
with key way, square bore, hexagon bore. Available specially with other designs such as
longer lengths, with bellows, stainless material etc.

3. Single Universal Joint
Universal joints are used to transmit torque from one shaft to another
which are offset to each other. It is an ideal form of coupling two shafts
when offset is unavoidable.
Universal joints are made from heat treated alloy steels for increased
over load and reliability. Precision machining ensures optimum
performance under severe load conditions.
Types
UD Single joint
OD from 13 to 63 mm

4. Double Universal Joint
Universal joints are used to transmit torque from one shaft to
another which are offset to each other. It is an ideal form of
coupling two shafts when offset is unavoidable.
Universal joints are made from heat treated alloy steels for
increased over load and reliability. Precision machining ensures
optimum performance under severe load conditions.
Types
US Single joint
OD from 13 to 63 mm

5. Universal Joints
Product Description
3 types of Universal joint, Single, Double and
Expandable.
Diameters from 13 to 63 mm.
Expandable type have splines for telescopic
movement.
Various type of bores, cylindrical, square Hexagon to
suit every application.

6. Materials of Construction
Hubs are made of Cr-Mo medium carbon steel, hardened & Tempered for
high torque transmission.
Pins are made of Ni- Cr- Mo medium carbon steel, hardened & Tempered
for high shear strength.
Special platings for corrosion resistance available on request.

7. Belden Universal Joints Overview
The Belden universal joint has become recognized as the most precise and
reliable universal joint on the worldwide market today. Belden’s team of
professional design engineers are able to create and manufacture universal
joints to fill almost any and every application. Belden universal joints satisfy a
broad spectrum of system design requirements and should be considered when
engineers faced with complicated challenges of today’s manufactures.