2208 Self-aligning Ball Bearings
| 2208 Self-aligning Ball Bearings | |||
|---|---|---|---|
| Part Number | 2208 | Weight(Kg) | 0.45 |
| d | 40 | Dynamic Load Co(N) | 24000 |
| D1 | 80 | Static Load Cor(N) | 8000 |
| B | 23 | Grease Speed | 7500 |
| R | 1.1 | Oil Speed | 9000 |
2208 Self-Aligning Ball Bearing / 2208K | Bearing Steel And Stainless Steel
The 2208 self-aligning ball bearing is a versatile double-row rolling bearing with a spherical outer raceway, designed for stable medium-load industrial operation. It features outstanding self-aligning performance to compensate for shaft misalignment and installation deflection, delivering low-friction, quiet and smooth rotation. Available in standard straight bore 2208, tapered bore 2208K, bearing steel and stainless steel grades, this bearing ensures reliable performance in dry, humid and sanitary working environments.
Difference Between 2208 and 2208K
2208 (Standard Bore): Adopts a straight cylindrical inner bore for fixed shaft fitting. It supports simple installation, stable positioning and easy disassembly, suitable for medium-load machinery with fixed assembly and no frequent adjustment needs.
2208K (Tapered Bore): Equipped with a 1:12 standard tapered inner bore, compatible with universal adapter sleeves. It enables flexible mounting and precise clearance adjustment for convenient maintenance and calibration, ideal for variable-speed transmission and frequently adjusted mechanical equipment.
Material Differences: Bearing Steel vs Stainless Steel
Bearing Steel (GCr15): GCr15 bearing steel is the cost-effective standard material for 2208 and 2208K bearings. Professional heat treatment provides high hardness, excellent wear resistance and strong anti-fatigue performance. It maintains stable load capacity and smooth rotation under conventional dry conditions, perfect for general medium-duty industrial machinery and transmission systems.
Stainless Steel: Stainless steel 2208/2208K bearings offer superior rust-proof, oxidation and weak corrosion resistance. They effectively resist moisture, humid air and minor contamination to avoid precision loss and corrosion failure, making them ideal for damp, clean, sanitary and mild outdoor working scenarios.
Product Features
Reliable self-aligning capability offsets mounting errors and shaft deflection. Double-row ball structure delivers stable medium-load capacity with low-noise, smooth operation. Dual bore designs meet fixed and adjustable installation demands. Two material options support economical general use and anti-corrosion precision applications. Standard size allows easy installation and long service life.
Application Scenarios
2208 and 2208K self-aligning ball bearings are widely used in medium motors, industrial fans, textile machinery, conveyor systems, packaging equipment and general industrial automation. Bearing steel models suit conventional indoor mechanical devices; stainless steel versions apply to food processing machinery, medical equipment and humid environment machinery. 2208K tapered bore bearings are preferred for equipment requiring frequent debugging and assembly adjustment.
