1311.K RICH | Self‑Aligning Ball Bearing – 55 × 120 × 29
Technical Specifications:
- Brand: RICH
- Type: Self‑Aligning Ball Bearing
- Inner Diameter (d): 55 mm
- Outer Diameter (D): 120 mm
- Width (B): 29 mm
- Cage: Steel
- Clearance: CN (Normal Clearance)
- Sealing: Open Type (No Seals)
- Taper: 1:12 Tapered Bore (K)
- Weight: 1.594 kg
- Country of Origin: China
Performance Characteristics:
- Spherical Raceway: The outer ring raceway is spherical, allowing compensation for angular misalignment between shaft and housing.
- Dual‑Row Configuration: The two ball rows distribute loads uniformly and maintain stable rotation under radial and moderate axial loads.
- Tapered Bore 1:12: The K‑type tapered bore allows mounting on adapter sleeves and supports secure shaft seating.
- Steel Cage: The pressed steel cage provides structural rigidity and consistent ball guidance.
- CN Clearance: Normal internal clearance suitable for standard thermal expansion and alignment conditions.
- Open Design: The absence of sealing elements allows external lubrication and direct inspection of the rolling elements.
The 1311.K RICH bearing is a self‑aligning ball bearing with a spherical outer raceway and a 1:12 tapered bore. The steel cage and CN clearance support stable operation in assemblies where shaft or housing misalignment may occur.
Transparency Note: This bearing is manufactured under the RICH brand. All technical data refer exclusively to the RICH 1311.K model and do not imply association with other manufacturers.
