Angular Contact Ball Bearing — Double Row — 3211 2RS (Equivalent: 5211 2RS)

Identification

• Brand: KBS
• Item Number: 3211 2RS (= 5211 2RS equivalent)
• Category: Angular Contact Ball Bearing, Double Row

Dimensions & Weight

• Bore / ID (d): 55 mm (2.1654 in)
• Outside Diameter (D): 100 mm (3.9370 in)
• Width (B): 33.3 mm (1.311 in)
• Weight: 0.942 kg (~2.08 lb)

Product Properties

• Bore Type: C — Cylindrical bore
• Seal: 2RS — Rubber seals on both sides
• Cage Type: S — Steel / standard cage
• Radial Internal Play: C3 (higher than CN/normal)
• Precision: Standard precision
• Lubrication: Standard lubrication
• Heat Stabilization: None (up to 120 °C)
• Ring design: Standard split inner/outer ring
• External modification: None

Suffix

• 2RS: Rubber seals at each side of the bearing

The 3211 2RS is a double-row angular contact ball bearing designed to support combined loads (radial + axial loads in both directions) in a compact design. The 2RS seals help retain grease and reduce contamination, while C3 internal clearance is suitable for applications with higher operating temperatures or speeds where extra clearance is required. The 3211 / 5211 equivalence is commonly used for cross-referencing in catalogs and replacements.

Package Includes: ONE (1) KBS Bearing  3211 2RS= 5211 2RS