Trapezoidal nut 40x7 left-hand flanged, bronze

Product Description

Trapezoidal nut 40x7 left-hand flanged, bronze

The nut works with a trapezoidal screw with the same thread - choosing the correct size and thread hand is key to the correct operation of the mechanism. Made of Tin bronze CuSn5Zn5Pb5-C (CC491K), left-hand thread Tr 40x7, in accordance with DIN 103 / ISO 2901-2904.

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

Trapezoidal screw Tr 40x7, left-hand - size, pitch and thread hand must be identical to the nut, otherwise the mechanism will jam.

Does this nut need lubrication?

Yes - good grease is recommended, because this is a sliding element working under load. Lack of lubrication accelerates thread wear.

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 40x7 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 CuSn5Zn5Pb5-C (CC491K) - a material long used in screw drives because of its favourable sliding friction coefficient.

How is this nut mounted in the mechanism?

The flange with mounting holes allows quick, rigid fixing to the body without an additional housing.

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.