Pulley – Rod‑Mounted, Ball Bearing (50 mm Diameter)

This Rod‑Mounted Pulley is designed for smooth, low‑friction operation in physics experiments involving forces, motion, and mechanical advantage. The unit features a 50 mm diameter plastic pulley fitted with a precision ball bearing, providing excellent rotational performance during classroom demonstrations.

Mounted on a 150 mm × 15 mm diameter metal rod, the pulley can be securely attached to standard laboratory bosses and stands. The mounting bar includes tapped holes, allowing the pulley to be positioned with its axis of rotation in any one of three planes, offering flexibility for a wide range of mechanical setups and investigations.

Key Features

• 50 mm diameter plastic pulley
• Ball bearing for smooth, low‑friction rotation
• Mounted on a 150 × 15 mm metal rod
• Tapped holes allow pulley orientation in three possible planes
• Compatible with standard laboratory stands and bosses
• Durable and stable for repeated classroom use

Ideal for School Science Lessons

Perfect for KS3–KS5 physics, this rod‑mounted pulley supports:

• Investigations into forces, motion, and mechanical advantage
• Studying the effect of friction and efficiency in pulley systems
• Demonstrating fixed and movable pulley arrangements
• Constructing force-resolving and vector experiments
• Technician preparation for mechanical apparatus setups

Versatile, robust, and classroom‑ready, this ball‑bearing rod‑mounted pulley is an essential piece of equipment for teaching mechanics and force principles in school laboratories.