Trapezoidal nut 28x5 left-hand cylindrical, bronze

Product Description

Trapezoidal nut 28x5 left-hand cylindrical, bronze

It is the basic element of every screw-and-nut drive - it converts the rotary motion of the screw into the linear motion of the mechanism. Standard DIN 103 / ISO 2901-2904, material Tin bronze CuSn7Zn4Pb7-C (CC493K), left-hand thread Tr 28x5 - parameters fully compliant with the trapezoidal screw drive standard.

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

You need a screw Tr 28x5 with the same thread hand (left-hand) and the same pitch - other sizes will not fit together.

How can you tell that a trapezoidal nut is worn?

The most common sign is increasing backlash between the screw and the nut - noticeable jerking when the direction of motion changes. This means the nut thread has worn and needs to be replaced.

Does a standard trapezoidal nut have backlash in the thread?

Yes, some backlash results from the manufacturing tolerance of the thread - this is normal. If you need zero backlash (e.g. for precise positioning), anti-backlash nuts are used, which are a different product from a standard nut.

What does the symbol Tr 28x5 mean?

"Tr" is a symmetrical trapezoidal thread (flank angle 30°). The first number is the outer diameter of the screw in millimetres, the second is the thread pitch, i.e. the linear travel per full turn.

What are the properties of this nut's material?

Material: Tin bronze CuSn7Zn4Pb7-C (CC493K) - low tendency to seize when paired with a steel screw, the standard in screw-and-nut drives.

How is this nut mounted in the mechanism?

The cylindrical body is designed to be installed inside a housing or mounting sleeve.

Where are 28x5 trapezoidal nuts used?

28x5 trapezoidal nuts are used in screw jacks, presses, vices, positioning tables, linear axes of CNC machines and tensioning mechanisms - wherever the rotary motion of a screw must be converted into precise, repeatable linear motion.

Product photos are for illustration purposes.