Quick Answer:The Pulley, Rod & Bench Mounting 70mm is a 70 mm light alloy pulley on a brass/silvered-steel bearing, held in an alloy bracket that clamps to a bench edge up to 38 mm thick, screws to a flat surface or fits a 13 mm rod.
Last updated: 18 October 2026
Key Features
70 mm diameter light alloy pulley.
Brass/silvered-steel bearing.
Alloy bracket with two clamping screws.
Clamps to a bench edge or similar support up to 38 mm thick, or to a 13 mm diameter support rod.
Can also be screwed to a flat surface.
Technical Specifications
Specification
Value
Pulley diameter
70 mm
Pulley material
Light alloy
Bearing
Brass/silvered steel
Bracket
Alloy, two clamping screws
Bench clamping
Up to 38 mm thickness
Rod mounting
13 mm diameter rod
How It Is Used
Fixed at the edge of a bench, the pulley carries a cord from a trolley or load over to hanging masses in force and motion experiments; it can equally be mounted on a support rod or screwed down.
Frequently Asked Questions
What thickness of bench can the Pulley, Rod & Bench Mounting 70mm clamp to?
The bracket clamps to a bench edge or similar support up to 38 mm thick. It can also be screwed to a flat surface or held on a 13 mm diameter support rod.