Choosing the correct bearing for industrial equipment requires matching load capacity, rotational speed, and operating environment to the right bearing type and size. This guide breaks down key steps to avoid premature failure and optimize performance.
How to Match Bearing Type to Load Conditions
Radial loads act perpendicular to the shaft, while axial loads run parallel. Deep groove ball bearings handle radial loads up to 50,000 N and minor axial loads, making them ideal for pumps and fans. For combined radial and axial loads (e.g., conveyor systems), use tapered roller bearings, which support up to 80,000 N axial load at 8,000 RPM. MS Bearings provides a load chart for common industrial applications to simplify this match.
Calculate Required Bearing Size for Your Application
Bore size matches the shaft diameter, measured to ±0.01 mm tolerance. ISO standard bore sizes include 20 mm, 25 mm, and 30 mm; for example, a 25 mm bore bearing fits shafts 24.98–25.02 mm. Outer diameter and width follow ISO dimensions to fit housing slots. Oversized or undersized bores cause misalignment, leading to 30% higher failure rates, per industry data.
Account for Environmental and Operating Factors
High-temperature applications (over 120°C) require heat-resistant bearings with steel cages, such as MS Bearings’ 6205-2RS HT model, rated for 150°C. Corrosive environments (e.g., food processing) use stainless steel bearings with sealed shields to prevent contamination. Low-speed heavy loads (crushers) need spherical roller bearings, which adjust for misalignment and support up to 200,000 N radial load.
What bearing type is best for high radial load?
Spherical roller bearings are optimal for radial loads over 100,000 N, with self-aligning capabilities to handle shaft misalignment up to 2 degrees.
How do I select the right seal type for bearings?
Use contact seals (2RS) for dust-prone environments, and non-contact seals (ZZ) for high-speed applications over 10,000 RPM.
Contact MS Bearings for free technical support when finalizing your bearing selection.
