Listed manufacturers
BAJRANG WIRE PRODUCTS (INDIA) PRIVATE LIMITED
Jaipur, Rajasthan
Industries: Electrical, Automotive
+91 1414151111 · Website
What is a ball bearing?
The balls roll in grooves in the rings and are kept apart by a cage. The deep-groove type, the most widely used, carries radial loads and moderate axial loads in both directions at high speed. Bearings come open, shielded with metal plates, or sealed with rubber, and are packed with grease. They are made in many sizes and precision classes.
Ball Bearing or roller bearing?
A ball bearing touches the rings at a point, so it runs with low friction at high speed and carries moderate loads. A roller bearing contacts along a line and carries much heavier loads, but at lower speeds and with more friction.
What to specify when you ask for a quote
- Bearing designation: series, bore, outside diameter and width.
- Loads: radial and axial, and whether they are steady or shock.
- Speed and temperature in service, which decide clearance, cage and lubricant.
- Sealing: open, shielded or sealed, for dust, water or washdown.
- Internal clearance and the precision class for your fit.
- Brand, markings and the authenticity checks the supplier can show.
Where it is used
- Industrial MachineryMotors, gearboxes, fans and general machinery.
- AutomotiveWheel hubs, alternators and gearboxes.
- PumpsPump shafts and motors.
Frequently asked questions
What do the suffixes on a bearing number mean?
They show features such as the type of seal or shield and the internal clearance. For example, a rubber seal on both sides and a metal shield on both sides are marked with standard codes. Ask your supplier to explain the designation for the bearing you need.
How do I choose between shielded and sealed bearings?
Shields keep out larger particles and allow higher speed, while rubber seals give better protection from dust and moisture but add friction. Choose by the environment and the speed.
How should bearings be fitted?
Keep them clean, fit them with the correct tools and force applied to the ring that carries the press fit, and avoid hammering. Follow the maker’s instructions for fits and lubrication.
How can I avoid counterfeit bearings?
Buy from authorised or traceable suppliers, check the markings and packaging and ask for batch records. Prices far below the market are a warning sign.