22318 E/C3

 

Dimensions

Bore diameter	90 mm
Outside diameter	190 mm
Width	64 mm

Performance

Basic dynamic load rating	637 kN
Basic static load rating	695 kN
Reference speed	2 600 r/min
Limiting speed	3 600 r/min
SKF performance class	SKF Explorer

Properties

Number of rows	2
Locating feature, bearing outer ring	Without
Bore type	Cylindrical
Cage	Sheet metal
Radial internal clearance	C3
Tolerance class for dimensions	Normal
Tolerance class for run-out	P5
Sealing	Without
Lubricant	None
Relubrication feature	With

Logistics

Product net weight

8.7 kg

High-Load Capacity & Self-Aligning Performance
The 22318 E/C3 spherical roller bearing is engineered to handle extreme radial and axial loads in heavy machinery, with a dynamic load rating of 1,090 kN and static load capacity of 1,220 kN. Its E-type design features symmetrical rollers and an optimized rib contact angle, distributing stress evenly across the raceways. The C3 internal clearance accommodates thermal expansion in high-temperature environments (up to 120°C) while maintaining smooth operation. Widely used in mining crushers and vibrating screens, this bearing compensates for shaft misalignment up to 2.5°, preventing premature wear in rugged applications. Its brass cage enhances durability under shock loads, making it ideal for construction equipment like compactors and tunnel boring machines.

Heat Resistance & Versatile Industrial Applications
Optimized for demanding thermal conditions, the 22318 E/C3's large internal clearance (C3) minimizes friction heat buildup in continuous-operation systems. This makes it a top choice for steel mill conveyor rollers, cement rotary kilns, and paper drying cylinders where temperatures fluctuate rapidly. The bearing's through-hardened steel components (Rockwell C 58-64 hardness) resist deformation under heavy loads, while advanced grease retention grooves extend relubrication intervals. In wind turbine pitch control systems and marine propulsion shafts, its corrosion-resistant coatings combat moisture and salt spray. Agricultural applications like grain elevators and harvesters benefit from its sealed variants (suffix 2RS1), which block abrasive dust and crop residue ingress.

Cost-Effective Maintenance & Customization Options
The 22318 E/C3 reduces downtime through split-design availability, enabling swift replacement in hard-to-access locations like sugar mill gearboxes or hydropower turbines. Its standardized dimensions (90mm bore × 190mm OD × 64mm width) ensure compatibility with global machinery, while custom options include:

Tapered bore adapters (K-design suffix) for precise shaft fitting in printing press rollers

X-life quality upgrades for 30% extended service life in mining slurry pumps

FDA-compliant grease variants for food processing conveyor belts
Energy-efficient versions with reduced friction torque are gaining traction in electric vehicle drivetrain testing rigs. With ISO 15:2017 certification, this bearing meets strict quality benchmarks for aerospace auxiliary power units and robotic assembly line palletizers.

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