Universal joints are flexible mechanical connectors used to transmit rotary motion from one shaft to another shaft that is not in line with the first, or when alignment varies. There are two types of universal joints, defined by their number of bending joints.
The first type of univarsal joint has one bending aspect. As a result of this it is capable of operating up to a 45º angle.
The second style is the double joint style. This has two bending joints; the double u-joint can operate up to 90º angles.
Steel is the most common material used, either in stainless form; or alloyed with other metals to handle greater torque and temperature
Universal joints can also be known as a universal coupling, U-Joint and UJs.
Single Universal Joints
Available with plain bearings or needle roller bearings. Plain bore and keyed bores stocked as standard, hex or square shaped bores on request.
Double Universal Joints
Available with plain bearings or needle roller bearings. Plain bore and keyed bores stocked as standard, hex or square shaped bores on request.
Stainless Steel Universal Joints
Single and double universal joints with plain bearings and plain bores. Keyed, hex, or square shaped bores available on request.
When one single joint is coupled with two shafts (of which the driving one is rotating at a constant speed) forming an angle, a periodic variation of the driven shaft is caused with exactly four fluctuations per revolution.
The difference between the maximum and the minimum speed of the driven shaft depends on the angle formed by the two shafts. The difference grows with the an increase of the angle a°. To have a homokinetic transmission, either two opposite single joints (ensuing that that the two central yokes lie on the same plane and the angles are equal) or a double joint need to be fitted. The irregularity caused by the former articulation is cancelled by the latter. The overall length resulting from the coupling of the two single joints can be reduced by using a double joint. In other words, the double joint is to be considered as the shortest homokinetic transmission.
For low speed applications (Max. 1000 rpm), joints with plain bearings (rubbing bearings) are suggested. They are able to support shock loads, motion reversals, irregular runnings and relatively high torques. The working angles must be be restricted when using at speeds between 500 - 1000 rpm. Please consult our technical department if you have such an application.
For high rotation speeds, relatively low torques or wide angles, joints with needle roller bearings are preferred. They can reach 4000 RPM dependent on the angle.
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UJSP22X10 Universal Single Joint with Plain Bearing
Universal Joints - Single Joint Plain Bore by Bolton Engineering
£41.56 exc VAT
UJSP25X12 Universal Single Joint with Plain Bearing
Universal Joints - Single Joint Plain Bore by Bolton Engineering
£45.26 exc VAT
UJDPL32 Universal Double Joint with Plain Bearings Unbored Long
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£122.29 exc VAT
UJDP32X16 Universal Double Joint with Plain Bearing
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£145.51 exc VAT
UJSP36X18 Universal Single Joint with Plain Bearing
Universal Joints - Single Joint Plain Bore by Bolton Engineering
£57.43 exc VAT
UJDN25X12 Universal Double Joint with Needle Roller Bearing
Universal Joints - Double Joint Needle Bearing by Bolton Engineering
£156.49 exc VAT
UJDP16X6 Universal Double Joint with Plain Bearing
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£115.71 exc VAT
UJDN42X20 Universal Double Joint with Needle Roller Bearing
Universal Joints - Double Joint Needle Bearing by Bolton Engineering
£214.73 exc VAT
UJDPL28 Universal Double Joint with Plain Bearings Unbored Long
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£107.08 exc VAT
UJDN22X10 Universal Double Joint with Needle Roller Bearing
Universal Joints - Double Joint Needle Bearing by Bolton Engineering
£148.43 exc VAT
UJSP16X8 Universal Single Joint with Plain Bearing
Universal Joints - Single Joint Plain Bore by Bolton Engineering
£40.91 exc VAT
UJSN32X16 Universal Single Joint with Needle Roller Bearing
Universal Joints - Single Joint Needle Bearing by Bolton Engineering
£135.25 exc VAT
UJSN50X25 Universal Single Joint with Needle Roller Bearing
Universal Joints - Single Joint Needle Bearing by Bolton Engineering
£209.72 exc VAT
UJDPL25 Universal Double Joint with Plain Bearings Unbored Long
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£102.69 exc VAT
UJSP42X20 Universal Single Joint with Plain Bearing
Universal Joints - Single Joint Plain Bore by Bolton Engineering
£63.92 exc VAT
UJSN28X14 Universal Single Joint with Needle Roller Bearing
Universal Joints - Single Joint Needle Bearing by Bolton Engineering
£123.29 exc VAT
UJDN28X14 Universal Double Joint with Needle Roller Bearing
Universal Joints - Double Joint Needle Bearing by Bolton Engineering
£170.78 exc VAT
UJDPL22 Universal Double Joint with Plain Bearings Unbored Long
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£98.51 exc VAT
UJDP28X14 Universal Double Joint with Plain Bearing
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£138.87 exc VAT
UJDP36X18 Universal Double Joint with Plain Bearing
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£181.81 exc VAT
UJDP42X20 Universal Double Joint with Plain Bearing
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£196.68 exc VAT
UJDP45X22 Universal Double Joint with Plain Bearing
Universal Joints - Double Joint Plain Bore by Bolton Engineering
£262.82 exc VAT
UJSP16X6 Universal Single Joint with Plain Bearing
Universal Joints - Single Joint Plain Bore by Bolton Engineering
£40.41 exc VAT
UJSP28X14 Universal Single Joint with Plain Bearing
Universal Joints - Single Joint Plain Bore by Bolton Engineering
£46.59 exc VAT
