Trapezoidal nut 40x7 left-hand cylindrical, bronze

Product Description

Trapezoidal nut 40x7 left-hand cylindrical, bronze

In positioning systems this nut works with a trapezoidal screw, converting rotation into precise linear motion. Made of Tin bronze CuSn7Zn4Pb7-C (CC493K), left-hand thread Tr 40x7, in accordance with DIN 103 / ISO 2901-2904.

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

You need a screw Tr 40x7 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 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 does the symbol Tr 40x7 mean?

The designation "Tr" indicates a trapezoidal thread with a symmetrical 30° profile. The first number is the nominal diameter in mm, the second is the pitch - the distance the nut travels per turn of the screw.

What are the properties of this nut's material?

Material: Tin bronze CuSn7Zn4Pb7-C (CC493K) - a material long used in screw drives because of its favourable sliding friction coefficient.

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 40x7 trapezoidal nuts used?

40x7 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.