1208 Self-aligning Ball Bearings
| 1208 Self-aligning Ball Bearings | |||
|---|---|---|---|
| Part Number | 1208 | Weight(Kg) | 0.41 |
| d | 40 | Dynamic Load Co(N) | 19200 |
| D1 | 80 | Static Load Cor(N) | 6400 |
| B | 18 | Grease Speed | 7500 |
| R | 1.1 | Oil Speed | 9000 |
1208 Self-Aligning Ball Bearing / 1208K | Bearing Steel And Stainless Steel
The 1208 self-aligning ball bearing is a high-performance double-row rolling bearing with a spherical outer raceway. It features reliable self-aligning capability to offset shaft misalignment and installation deflection, ensuring low-friction, low-noise and stable operation for light and medium-duty mechanical systems. Available in standard straight bore 1208, tapered bore 1208K, bearing steel and stainless steel options, this bearing fits diverse dry, humid and sanitary industrial working environments.
Difference Between 1208 and 1208K
1208 (Standard Bore): Adopts a straight cylindrical inner bore with fixed shaft matching design. It features simple installation and disassembly, stable positioning, and is suitable for standard industrial equipment with fixed assembly and no frequent adjustment needs.
1208K (Tapered Bore): Designed with a 1:12 standard tapered inner bore, compatible with adapter sleeves. It allows flexible installation, precise clearance and preload adjustment, easy for daily maintenance, ideal for variable-speed transmission and frequently calibrated mechanical equipment.
Material Differences: Bearing Steel vs Stainless Steel
Bearing Steel (GCr15): GCr15 bearing steel is the cost-effective mainstream material for 1208 and 1208K bearings. With professional heat treatment, it achieves high hardness, outstanding wear resistance and excellent anti-fatigue performance. It maintains stable load capacity and smooth rotation under conventional dry conditions, perfect for general industrial machinery and transmission devices.
Stainless Steel: Stainless steel 1208/1208K bearings deliver excellent rust-proof, oxidation and weak corrosion resistance. They effectively resist moisture, humid air and minor contamination, preventing precision loss and corrosion failure, suitable for damp, sanitary and mild outdoor working scenarios.
Product Features
Powerful self-aligning performance compensates for mounting errors and shaft deflection. Double-row ball structure provides stable load capacity and quiet, smooth operation. Dual bore designs meet fixed and adjustable installation requirements. Two material grades support economical general use and anti-corrosion precision applications. Standard size ensures easy installation, replacement and long service life.
Application Scenarios
1208 and 1208K self-aligning ball bearings are widely used in industrial fans, textile machinery, conveyor systems, medium motors, packaging equipment and general automation machinery. Bearing steel models are applicable to conventional indoor mechanical equipment; stainless steel versions fit food machinery, medical devices and humid environment equipment. 1208K tapered bore bearings are ideal for equipment requiring frequent debugging and assembly adjustment.
