Spherical Roller Bearing Supplier

Spherical Roller Bearing Supplier

Enduring Extreme Loads & Misalignments

Spherical roller bearings feature two rows of symmetrical barrel rollers running in a common spherical outer ring raceway. This unique structure makes them inherently self-aligning, allowing them to tolerate heavy shaft deflections and angular misalignments without increasing internal friction.

These industrial giants are crucial for severe-duty applications: gearboxes, pulp and paper mills, wind turbines, mining conveyors, and cement mixers. BMT Impex maintains extensive stocks of both steel cage (Type 1) and machined brass cage (Type 2) configurations to support immediate maintenance dispatches.

Spherical Roller Bearings Category
Heavy Industrial Sizing Chart

Technical Specifications & Sizing

Standard dimensional parameters for popular 22200 and 22300 self-aligning series.

Bearing Model Bore (d) Outer Dia (D) Width (B) Dynamic Load (Cr) Static Load (Cor) Limiting Speed (Oil) Cage Type
22208 E / CC 40 mm 80 mm 23 mm 96.5 kN 98.0 kN 4,800 RPM Steel / CC style
22210 E / CC 50 mm 90 mm 23 mm 104.0 kN 112.0 kN 4,300 RPM Steel / CC style
22212 E / CCW33 60 mm 110 mm 28 mm 156.0 kN 166.0 kN 3,800 RPM Steel / CC style
22216 EM / CAMW33 80 mm 140 mm 33 mm 228.0 kN 270.0 kN 3,000 RPM Machined Brass (M)
22220 EM / CAMW33 100 mm 180 mm 46 mm 425.0 kN 490.0 kN 2,400 RPM Machined Brass (M)
22312 E / CCW33 60 mm 130 mm 46 mm 280.0 kN 310.0 kN 3,200 RPM Steel / CC style
22316 EM / CAMW33 80 mm 170 mm 58 mm 455.0 kN 510.0 kN 2,400 RPM Machined Brass (M)
22320 EM / CAMW33 100 mm 215 mm 73 mm 710.0 kN 830.0 kN 1,900 RPM Machined Brass (M)

* W33 indicates standard outer ring oil groove and three lubrication holes.

Engineering Insights

Bearing Nomenclature & Clearance Guide

Understanding the technical suffixes, clearance prefixes, and material ratings used in industrial procurement.

Suffix & Prefix Reference

  • CC / C: Flangeless inner ring and pressed steel cage; self-guiding rollers for lower friction.
  • CA: Double-pronged machined brass cage with retaining flanges; ideal for heavy shock loads.
  • E: Optimized internal design with longer rollers, increasing dynamic capacity ratings.
  • K / K30: Tapered bore with 1:12 taper (K) or 1:30 taper (K30) for adapter sleeve mounting.

Radial Internal Clearance (RIC)

  • CN (Normal): Standard radial clearance for standard industrial gearboxes and fans.
  • C3 (Loose): Greater than normal clearance. Crucial for vibratory screens, paper mills, and blowers.
  • C4 / C5: Massive clearance for continuous steel casting lines and high-temperature kilns.
  • W33: Outer ring features a lubrication groove and three oil holes for direct lubrication on rollers.
Technical Guide

Bearing Selection & Sizing Guide

Critical engineering parameters, structure details, and operating limits to help you select the ideal component.

Self-Aligning Design

Features two rows of symmetrical barrel-shaped rollers that rotate on a common spherical outer ring. Allows up to 2° of shaft misalignment without increasing friction or heat generation.

Vibratory & Shock Duty

CA brass cage configurations are engineered to resist high centrifugal forces and shock vibrations. CC steel cages are optimized for higher operating speed limits and lower torque.

Severe Operations

The ultimate component for heavy mining machinery, paper mill rollers, wind turbines, and cement crushers. Supports heavy radial loads and high combined axial loads in both directions.

Target Environments

Common Industrial Applications

These bearings are engineered to deliver reliable rotation and support critical equipment in harsh sectors, including:

Mining Screens

Withstands extreme shock loads and strong structural vibrations inside quarry vibrator screens.

Wind Turbines

Maintains alignment and supports heavy main shafts inside wind power generator gearboxes.

Continuous Casting

Performs reliably under intense heat and massive structural loads in steel continuous casting lines.

Propulsion Systems

Compensates for hull deflections and shaft misalignments inside large commercial vessels.

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FAQ

Frequently Asked Questions

Technical details, selection parameters, and service queries resolved by our engineering sales team.

The outer ring has a spherical raceway. This allows the rollers and inner ring to pivot up to 2 degrees without increasing friction or reducing bearing life, making them ideal for long shafts prone to deflection.
Steel cages (CC/E) are lighter, cost-effective, and provide better grease flow. Brass cages (CA/MB) are heavier, have high mechanical rigidity, and are superior for heavy shock loads and high-vibration applications.
The 'K' suffix indicates a tapered bore (1:12 slope). Tapered bore bearings are typically mounted using an adapter sleeve (H series) or withdrawal sleeve (AH series) to simplify shaft installation.