Bearing Knowledge

Bearing Seals Guide: Types, Functions and Selection Tips Feature Open ZZ 2RS Dust Protection Poor Good Excellent Water Resistance Poor Limited Excellent Speed Capability Highest High Medium Maintenance Required Low Minimal Working Condition Recommended Seal Clean & High Speed Open Dusty Environment ZZ Wet & Dusty 2RS Chemical Exposure FKM / PTFE Food Industry Stainless […]

Bearing Types Guide: Different Types of Bearings and Their Applications Bearings Ball Bearings Deep Groove Ball radial, versatile Angular Contact Ball combined load, high speed Self-Aligning Ball misalignment tolerant Thrust Ball axial only Roller Bearings Cylindrical Roller high radial Tapered Roller radial + axial Spherical Roller heavy + self-aligning Needle Roller compact, high radial Thrust

Bearing Selection Guide: How to Choose the Right Bearing for Any Application Load Type Direction Recommended Bearings Radial Perpendicular to shaft Deep Groove Ball / Cylindrical Roller Axial (Thrust) Parallel to shaft Thrust Bearings / Angular Contact Combined Mixed radial + axial Angular Contact / Tapered Roller Heavy Shock Impact / Variable Spherical Roller Application

Bearing Clearance Guide: C2, CN, C3, C4 & C5 Explained Clearance Class Relative Size Typical Applications Key Risk C2 Less than normal Precision instruments, high-speed spindles Seizure if fit or temperature exceeds design assumptions CN (Normal) Standard General machinery, pumps, low-temp applications Insufficient residual clearance under interference fit or heat C3 Greater than normal Electric

Bearing Precision Grades Guide: ISO, ABEC & How to Choose Grade Accuracy Speed Cost Typical Applications P0 Standard Medium Low General Machinery P6 Higher Medium-High Medium Motors P5 High High Higher Machine Tools P4 Very High Very High Expensive CNC Spindles P2 Ultra High Extreme Very Expensive Aerospace Reference for matching precision grades to application