A universal joint is a solid coupling that allows two rotating shafts to be connected together. The bearing in the universal joints allow the transmission of torque and rotary motion of two shafts that are not aligned to each other. They have a maximum operational bending angle per bearing of 45 degrees and come in steel and stainless steel with protection bellows to stop the ingress of dirt in the bearings.
Whether you need universal joints to connect shafts across an angle discrepancy or clevis joints for connecting to rods, we can provide you with the technical assistance and data you need for your application. We have both metric and inch sizing products where available.
Our range of ant-stiction air cylinders complements our range of linkages by providing smooth and efficient operation of applications attached to the joint.
Be sure to request your free catalogue here today and make use of our freely available CAD files on each product page.
Stainless steel double universal joints. Manufactured to DIN 808. Maximum bending angle of 45° per joint. Round bore and keyway available.
Bellows available for double universal joints. They allow full protection against ingress of dirt. Can be filled with grease for long term lubrication.
Universal joints with quick change coupling. Manufactured to DIN 808. Maximum bending angle of 45° per joint. Rapid change coupling ideal where time is critical.
Free cutting steel universal joints, plain bearing. Manufactured to DIN 808. Maximum bending angle of 45° per joint. Used where large bending angles are required.
Single universal joints, needle roller bearing. Manufactured to DIN 808. Maximum bending angle of 45° per joint. Roller bearing lubricated for life.
Bellows available for single universal joints. They allow full protection against ingress of dirt. Can be filled with grease for long term lubrication.
The joint capacity to transmit a regular torque at a constant load with no shocks, for a long period, mainly depends of the number of revolutions per minute and the inclination angle a° of the two axes. The diagram on the following pages are based on this. Each curve corresponds to the joint size (outside diameter "D") and represents the torque that the joint can transmit depending on speed and working angle a°.
The diagrams can be directly read if angle (a°) is 10°. For wider angles, torques are reduced, therefore these are to be corrected using the correction vales (F) relating to the angle shown in the table.
Important Note: Diagrams' values are merely indicative and refer to the single joints only. When choosing a double joint, you have to consider that they can transmit a torque about 10% lower than the same sized single joints. Each application has its own particular motion characteristics, such as: shock loads, motion reversals, connected masses, kind of starting presence of elastic joints, stops and starts, etc..., that have to be considered when choosing the joint.
|Working angle a°||Correction value F|
Power = 0,65 kW
RPM = 230
With working angle a°, F = 1, we get point P. Torque = 27Nm corresponding to joint size "D" = 25/26mm = Types R3688.016 and R3689.012
With working angle a 30°, F = 0,45 (kW 0,65: 0,45 = 1,44 kW) we get point P1 Torque = 60 Nm corresponding to joint size "D" = 32mm = Types R3688.020 and R3689.016
We are pleased to say our products have never been so popular; we are experiencing unprecedented levels of demand.
Unfortunately our normal levels of customer service and timescales for despatch are being impacted. We are making every effort to bring despatch times back to normal levels, and would ask you to bear with us while we integrate and train new staff.
Currently despatch of in-stock parts are running at 48 to 72 hours from receipt of order - if you do have goods requiring most urgent delivery, we would ask you to contact us with your express requirements and we will do our best to accomodate your requirements.
Many thanks for your continued business