1300 Self-aligning Ball Bearings

1300 Self-Aligning Ball Bearing / 1300K | Bearing Steel And Stainless Steel

The 1300 self-aligning ball bearing is a compact double-row rolling bearing with a spherical outer raceway, featuring superior self-aligning performance to compensate for shaft misalignment and installation deflection. It delivers low-friction, quiet and stable rotation for light-duty precision mechanical systems. Available in standard straight bore 1300, tapered bore 1300K, bearing steel and stainless steel grades, this bearing works reliably in dry, humid and sanitary industrial environments.

Difference Between 1300 and 1300K

1300 (Standard Bore): Features a straight cylindrical inner bore with fixed shaft fit design. It supports simple installation, stable positioning and easy disassembly, ideal for standard miniature and light-duty equipment with fixed assembly and no frequent adjustment demands.

1300K (Tapered Bore): Equipped with a 1:12 tapered inner bore, compatible with standard adapter sleeves. It allows flexible mounting, precise clearance and preload adjustment, facilitating quick maintenance and calibration. Perfect for variable-speed transmission machinery and equipment requiring frequent assembly tuning.

Material Differences: Bearing Steel vs Stainless Steel

Bearing Steel (GCr15): GCr15 bearing steel is the cost-effective standard material for 1300 and 1300K bearings. After professional heat treatment, it gains high hardness, excellent wear resistance and strong anti-fatigue performance. It maintains stable load capacity and smooth operation under normal dry conditions, suitable for general light-duty industrial machinery and conventional transmission systems.

Stainless Steel: Stainless steel 1300/1300K bearings offer outstanding rust-proof, oxidation and weak corrosion resistance. They effectively resist moisture, humid air and minor contamination, avoiding precision loss and corrosion failure. Ideal for damp, clean, sanitary and mild outdoor working scenarios.

Product Features

Reliable self-aligning ability offsets mounting errors and shaft deflection. Double-row ball structure ensures stable load capacity and low-noise smooth operation. Dual bore designs meet fixed and adjustable installation requirements. Two material options cover economical general use and anti-corrosion precision applications. Compact standard size enables easy installation and long service life.

Application Scenarios

1300 and 1300K self-aligning ball bearings are widely used in small motors, precision instruments, fan equipment, textile machinery, miniature conveyor systems and light industrial automation. Bearing steel models suit conventional indoor mechanical equipment; stainless steel versions apply to food processing, medical devices and humid environment machinery. 1300K tapered bore bearings are preferred for equipment needing frequent debugging and assembly adjustment.