Spherical roller bearings are double-row, non-separable bearing. Their core structure features an outer ring with a spherical raceway combined with barrel-shaped rollers, which enables them to carry heavy load while providing self-aligning capability to compensate for shaft deflection or mounting misalignment.
Common Variants and Suffixes
CC / CA / E types: Different internal structural design. For example, CC type (pressed steel cage, floating center guide ring) and CA type (machined brass cage, inner ring with ribs) differ in cage and rib design; E type generally denotes an optimized internal design with improved load capacity.
K / K30: Tapered bore, with tapers of 1:12 and 1:30 respectively (the latter is mostly used for 240 and 241 series).
W33: Outer ring with lubrication groove and three lubrication holes.
Sealed types (e.g., CS / RS): One or both sides with contact seals, pre-filled with grease, suitable for application where maintenance is inconvenient.
Typical Application
Widely used in mining equipment (crusher, vibrating screen), papermaking machinery, reduction gear unit, rolling mill, and wind turbine main shaft—industrial fields where heavy load and risk of shaft deflection exist.
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The core features of the 223 series spherical roller bearings lie in their high load-carrying capacity and self-aligning capability. They belong to the wider-width series of spherical roller bearing (in the 22 and 23 series, "3" denotes the width series), and are designed with a focus on withstanding heavy load and shock load.
Self-Aligning, Compensating for Misalignment: The outer ring raceway is spherical, and the barrel-shaped rollers can adjust freely, automatically compensating for angular deviations caused by shaft deflection or installation misalignment. The permissible static misalignment is typically around 0.5°.
High Load-Carrying Capacity: They can withstand extremely high radial loads and bidirectional axial loads, making them particularly suitable for heavy-load or shock and vibration conditions. For example, the Schaeffler 22322-E1 has a basic dynamic load rating of up to 950 kN and a static load rating of 1070 kN.
Main Design Variants:
E1 Design: Optimized internal geometry and surfaces, with the rigid center rib removed, significantly increasing the dynamic load rating and service life.
Vibrating Screen Version (T41A): For vibrating applications, the diameter tolerance band is narrowed and the clearance is usually enlarged (e.g., C4) to ensure stable operation under vibration.
Bore Types and Cages:
Available with cylindrical bore (no suffix letter) and tapered bore (suffix K, taper 1:12). The tapered bore facilitates mounting via an adapter sleeve and allows fine adjustment of clearance. Common cage types include pressed steel (JPA) or machined brass (M/CA).
Operating Temperature:
After standard heat treatment, they can typically operate stably within a temperature range of -30°C to +200°C.
| Inquiry | Bearing No. | Boundary dimensions（mm） | Basic load ratings(kN) | Limiting speed(rpm ) | Mass | ||||
|---|---|---|---|---|---|---|---|---|---|
| d | D | B | Dynamic(Cr) | Static(Cor) | Grease | Oil | Kg | ||
