Rzeppa Joint



What is a Rzeppa Joint?

The Rzeppa joint is a constant velocity joint that transmits torque over a wide angular range. It is commonly used in drive trains to transmit the rotational motion of two shafts in motor vehicles. A cage usually surrounds the joint.
In a typical Rzeppa ball joint, six balls fit in openings in the cage. The center ball guides the other four balls in a claw-like connection. The spheres lie in a plane 90 degrees from the axis.
Rzeppa joints can be connected to input shafts or journals. It is especially useful when the joint must be designed to run at a large angle between the input and output shafts.
To make the assembly of Rzeppa joints easier, the cage is introduced into the outer hub during assembly. The cage holds the balls in radial openings.
In the United States, there are two variations of the Rzeppa joint. US patents describe them. For the first embodiment, the inner hub is a star gear connected to the cage by a splined and threaded shaft.
On the other hand, the second embodiment has a cage that holds the balls in annular spheres. Half of the balls are inserted into the cage, while the other half is set in the outer hub.
Rzeppa fittings are available in many different sizes. Larger versions are suitable for drivelines with large angles between the output and input shafts.

Rzeppa joint was invented by an engineer in Ford Motor Company named Alfred Hans Rzeppa in 1926 and patented in 1935. Fun Fact! This joint is the first practical CV joint ever invented.

Features of Rzeppa Joint

It is a fixed joint that can twist up to 55 degrees in angle but have no horizontal travel.

In a Rzeppa joint, you will find an outer race, ball bearings, a cage, and an inner race.

  • The journey begins when you switch on your car engine.
  • The input shaft spins when your car engine starts.
  • An inner ring is attached to the input shaft.
  • The ball bearing goes on top of the inner ring.
  • A spherical cage fits and holds the ball bearings in.
  • An outer race has grooves for the ball bearings to fit in.
  • The outer race has an output shaft that connects to your car wheels.

The ball bearings are where the magic happens. They are the intermediate members between the input and output shafts. In layman’s terms, the ball bearings are the middlemen that move power from Point A (input shaft) to Point B (output shaft).

Ball bearings need to be in a specific position to do that efficiently. It must be in a bisecting plane between the input and output shaft. In order to do that, the spherical cage has 6 slots (one for each ball bearing) to hold and guide them at that angle.

This will ensure that the ball bearing is in constant contact with the outer race, which transfers the power to your car wheels.


Q1: Are you a factory?
A1: Yes, we are a manufacturer and trading company. The factory is located in Zhejiang Province.

Q2: Are all your products in stock?
A2: Hot sale products, self-developed products, and all Mitsubishi spare parts are usually in stock. For the remaining products,
The lead time will not be very long as they are already sold with stable suppliers.

Q3: What is your minimum order quality?
A3: Usually, the MOQ is about 100 pcs. Some bulky items can be 10 to 20 pieces. Different products have different MOQs, but if we have the model you need in stock and you can order quickly, we can lower the MOQ for you.

Q4: How do you make our business long-term and good relationship?
A4: Firstly, we maintain good quality and competitive prices to ensure our customer’s benefit; secondly, we respect every customer and treat them as our friends, no matter where they come from, we sincerely cooperate with They do business and make friends.

Q5: Do you accept small orders?
A5: Please feel free to contact us. We accept small orders if we have stock to get more orders and provide more convenience to our customers. We can send you the samples if you want.

Q6: Can you do OEM for me?
A6: We accept all OEM orders; please contact us. We will offer you a reasonable price and make samples for you as soon as possible.

Q7: Do you have any certificates?
A7: Yes, we have E-mark, ISO9000, TS16949, TUV, and other qualification certificates.

Q8: What is your quality control percentage?
A8: As for the quality, please rest assured that we will conduct strict quality control many times before shipment, and our sales will also go to the packing room to check the quality again in person. If bad products are found, we will send them to the factory again and make them again, then ship the best products to you.

Q9: What are your payment terms?
A9: Usually 30% in advance; the balance should be paid before shipment. Send money via TT, DP, LC, ALI PAY, etc.

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