Bearings Knowledge Hub
Field-tested guides on bearing selection, mounting, lubrication and failure analysis — written by people who fit and replace bearings for a living.
What is a Bearing? Construction, Functions and Common Types
8 min read · Jun 2026A plain-English introduction to bearings for engineers and students — what they do, how they're built, and the main types used across Indian industry.
The Power of Rotation: A Complete Guide to Slew Bearings
4 min read · Jun 2026Slew bearings (slewing rings) handle axial, radial and moment loads in a single mounted unit — used in cranes, excavators, wind turbines and CT scanners. A buyer's guide to internal vs external gearing and sourcing from Rothe Erde, SKF and Tecma.
Why Bearings Fail Early in Indian Factories
5 min read · Jun 2026It is rarely the bearing. Wrong clearance, hammer mounting, mis-matched grease and India-specific conditions kill bearings long before fatigue would.
How to Read a Bearing Number — A Practical Guide for Engineers
6 min read · Jun 2026Decode 4-digit, 5-digit and suffix-laden bearing numbers from SKF, NTN and FAG without a catalogue.
India's Bearing Market Size in 2026
6 min read · May 2026India's bearings market is now USD 4.5–5.0 billion and growing 7–9% CAGR. Here is what every buyer should know about segments, lead times and quality.
Grease vs Oil Lubrication — How to Choose
7 min read · May 2026A field-engineer's guide to picking grease, oil-bath, oil-mist or air-oil lubrication.
A Guide to High-Temperature Bearings
6 min read · May 2026At 450 °C standard steel quits and zirconia is already past its limit. Here is when to specify Si3N4 full-ceramic or graphite/metal alloy bearings.
Mounting Tapered Roller Bearings — Avoiding the Top 5 Mistakes
8 min read · May 2026Step-by-step technique to mount and preload tapered roller bearings without damage.
Precision in Motion: A Deep Dive into Ball Screw Technology
7 min read · May 2026Why ball screws — not lead screws — drive modern CNC, aerospace and robotics: efficiency, preload, return styles, and how to make them last.
Reading Bearing Failure Modes — A Visual Cheat-Sheet
9 min read · May 2026Eight failure patterns and what each one tells you about the root cause.
Insulated Bearings for VFD-Driven Motors — When and Which
7 min read · Apr 2026Stop electrical erosion in inverter-driven motors with the right insulation, hybrid ceramics or shaft grounding.
CNC Spindle Bearing Selection — Angular Contact Sets and Preload
8 min read · Apr 2026Sizing spindle bearings for accuracy, thermal stability and the right preload.