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Products | Theory of Machines and Properties of Materials | Theory of Machines | TM 300

TM 300

Screw Jack

Technical Description

The central element of this unit is a vertical spindle nut combined with a metric thread. A specific torque can be exercised on the spindle thread using a rotating plate designed as pulley. For this purpose a mechanical spring balance and a nylon cord are included with the unit. Additional weights that can be placed on the plate to enable the axial loading on the thread to be changed. The efficiency of the thread can be determined from the measured values. The portable apparatus is designed for table-top experiments and is equipped with anti-slip feet. Clips are fitted to base plate for all the individual parts.

Learning Objectives / Experiments

· Determination of the mechanical advantage of a spindle
· Determination of the efficiency of the thread
· Determination of the coefficient of friction and comparison of lubricated and unlubricated spindles

Features

Unit for determining thread efficiency

Alternative products

TM 310 -- Thread Efficiency Testing Equipment
TM 320 -- Screw Tester

Specification

[1] Table-top experiment for determining the thread efficiency of a screw jack
[2] Metric thread, Ø36mm, lead 4mm
[3] Plate effective diameter: Ø140mm
[4] Mech. spring balance, measuring range: 0...5N
[5] Additional weights for axial load: 10N and 20N
[6] Metal base plate with clips for individual parts
[7] lxwxh 300x300x300mm

Technical Data

Plate diameter: Ø140mm
Spindle thread: M36
Spring balance, measuring range: 0...5N
Load weights: 10N and 20N

Dimensions and Weight

l x w x h : 300 x 300 x 300 mm
Weight : approx. 9 kg

Scope of Delivery

1 complete experimental apparatus,
1 instruction manual

Order Details

040.30000 TM 300 Screw Jack