Pulley, Bench Mounting, Ball Bearing (Product Code: SLE/PHY/275) is a 50 mm nylon pulley with a ball bearing, carried on an aluminium boss, used to guide a string and hanging mass in bench mechanics experiments. Tapped holes let the pulley be fitted with its axis of rotation in any one of three planes, and the boss clamps onto rods up to 13 mm in diameter. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
| Parameter | Detail |
|---|---|
| Type | Bench mounting |
| Pulley | 50 mm diameter, nylon, with ball bearing |
| Boss | Aluminium, 20 x 20 x 110 mm |
| Rod fixing | Hole and clamping screw, accepts rods up to 13 mm diameter |
| Pulley orientation | Tapped holes allow the axis of rotation in any one of three planes |
| Product code | SLE/PHY/275 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
The pulley turns the pull of a hanging mass into a horizontal force on a trolley, block or string, the basic set-up for Newton’s second law, friction and acceleration practicals. Its ball bearing keeps friction at the axle low, so more of the falling mass’s weight goes into accelerating the system and results come closer to theory. Because the wheel can be re-fitted in any of three planes, the same unit can also carry a string round a corner of the apparatus, which makes it a versatile piece of mechanics lab equipment.
Clamp the boss firmly on a support rod of up to 13 mm diameter, check that the string runs in the groove without rubbing the boss, and keep the bearing free of dust and grit. Thin, low-stretch string gives the most consistent readings from one run to the next.
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, which manufactures this bench mounting pulley as the OEM at its own licensed factory at Saha, Ambala, Haryana, India. The nylon pulley and aluminium boss come as one assembly, supplied factory-direct to schools, colleges, laboratory dealers and importers. Repeat orders for extra pulleys, or questions about fitting the unit to your existing stands, go straight to the manufacturer; just ask us. See our company profile for background.
Apparatus used with the pulley in force and motion practicals:
See the full Physics Lab Equipment category for more mechanics apparatus.
What size is the Pulley, Bench Mounting, Ball Bearing?
The Pulley, Bench Mounting, Ball Bearing has a 50 mm diameter nylon pulley carried on an aluminium boss measuring 20 x 20 x 110 mm. The boss has a hole and clamping screw that accepts support rods up to 13 mm in diameter.
Why does the bench mounting pulley have a ball bearing?
The ball bearing in the Pulley, Bench Mounting, Ball Bearing lets the nylon wheel turn with very little friction, so less of the hanging mass’s pull is lost at the axle and acceleration and force results match theory more closely.
Can the pulley be mounted in different orientations?
Yes. The boss of the Pulley, Bench Mounting, Ball Bearing has tapped holes, so the nylon pulley can be fitted with its axis of rotation in any one of three planes, letting the string run in the direction each experiment needs.
What rods does the Pulley, Bench Mounting, Ball Bearing fit?
The Pulley, Bench Mounting, Ball Bearing clamps onto rods up to 13 mm in diameter using the hole and clamping screw in its aluminium boss. Check that your stand or support rods are 13 mm or thinner before ordering.
Who manufactures the Pulley, Bench Mounting, Ball Bearing?
The Pulley, Bench Mounting, Ball Bearing is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own licensed factory at Saha, Ambala, Haryana, India, which quotes it directly to schools, colleges, dealers and importers.
What should a quotation request for the bench mounting pulley include?
For the Pulley, Bench Mounting, Ball Bearing, state the product code SLE/PHY/275, the number of pulleys, your support-rod diameter, any masses or stands to include and the delivery location. Send the request through the contact page or enquiry cart.
Quotations for the Pulley, Bench Mounting, Ball Bearing come direct from the manufacturer. Write to us through the contact page or add the pulley to the enquiry cart with your other mechanics items.
Last updated: 24 September 2026