Trapezoidal nut 18x4 right-hand cylindrical, bronze

Product Description

Trapezoidal nut 18x4 right-hand cylindrical, bronze

This element is always selected together with the screw - without matching size, pitch and thread hand the mechanism will not fit together. Product made of Tin bronze CuSn7Zn4Pb7-C (CC493K), right-hand thread Tr 18x4 (standard DIN 103 / ISO 2901-2904).

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

You need a screw Tr 18x4 with the same thread hand (right-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.

Does this nut need lubrication?

Yes, and do not skimp on grease - this nut works in sliding motion under load, and a lack of it shortens the thread's service life.

What are the properties of this nut's material?

Material: Tin bronze CuSn7Zn4Pb7-C (CC493K) - good sliding properties and a low coefficient of friction in the thread, typical of nuts working in motion.

How is this nut mounted in the mechanism?

The smooth, round outline allows the nut to be seated in a recessed socket, without protruding edges.

Where are 18x4 trapezoidal nuts used?

Typical applications of 18x4 nuts are: presses and screw jacks, machine vices, height adjustment mechanisms, sliding tables and axis drives in machine tools - wherever precise conversion of rotary into linear motion matters.

Product photos are for illustration purposes.