1308 Self-aligning Ball Bearings
| 1308 Self-aligning Ball Bearings | |||
|---|---|---|---|
| Part Number | 1308 | Weight(Kg) | 0.670 |
| d | 40 | Dynamic Load Co(N) | 31800 |
| D1 | 90 | Static Load Cor(N) | 10700 |
| B | 23 | Grease Speed | 6700 |
| R | 1.1 | Oil Speed | 8000 |
1308 Self-Aligning Ball Bearing / 1308K | Bearing Steel And Stainless Steel
The 1308 self-aligning ball bearing is a popular double-row rolling bearing featuring a spherical outer raceway. It boasts reliable self-aligning performance to compensate for shaft misalignment and installation deflection, ensuring low-friction, quiet and stable operation for light and medium-duty mechanical systems. Available in standard straight bore 1308, tapered bore 1308K, bearing steel and stainless steel grades, this bearing delivers consistent performance in dry, humid and sanitary industrial environments.
Difference Between 1308 and 1308K
1308 (Standard Bore): Equipped with a straight cylindrical inner bore for fixed shaft fitting. It supports simple installation, stable positioning and easy disassembly, ideal for standard mechanical equipment with fixed assembly and no frequent adjustment requirements.
1308K (Tapered Bore): Designed 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, perfect for variable-speed transmission and frequently debugged machinery.
Material Differences: Bearing Steel vs Stainless Steel
Bearing Steel (GCr15): GCr15 bearing steel is the cost-effective standard material for 1308 and 1308K bearings. Through professional heat treatment, it gains high hardness, excellent wear resistance and strong anti-fatigue performance. It maintains stable load capacity and smooth rotation under dry working conditions, suitable for general industrial machinery and conventional transmission systems.
Stainless Steel: Stainless steel 1308/1308K bearings provide outstanding 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
Superior self-aligning capability offsets mounting errors and shaft deflection. Double-row ball structure ensures stable 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
1308 and 1308K self-aligning ball bearings are widely used in medium and small motors, industrial fans, textile machinery, light conveyor systems and general automation equipment. Bearing steel models suit conventional indoor mechanical devices; stainless steel versions apply to food processing machinery, medical equipment and humid environment machinery. 1308K tapered bore bearings are ideal for equipment requiring frequent debugging and assembly adjustment.
