1203mSelf-aligning Ball Bearings

1203mSelf-aligning Ball Bearings
Part Number 1203 Weight(Kg) 0.068
d 17 Dynamic Load Co(N) 7900
D1 40 Static Load Cor(N) 2020
B 12 Grease Speed 16000
R 0.6 Oil Speed 17000

1203 Self-Aligning Ball Bearing | Bearing Steel And Stainless Steel

The 1203 self-aligning ball bearing is a high-precision double-row rolling bearing designed to compensate for shaft misalignment and installation deflection. Featuring a unique spherical outer raceway and flexible internal structure, it delivers excellent self-aligning performance, low friction and stable high-speed operation. It effectively reduces mechanical vibration and shaft stress, extending equipment service life. Available in bearing steel and stainless steel grades, this 1203 bearing suits dry, humid and light-duty precision industrial environments.

Material Differences: Bearing Steel vs Stainless Steel

Bearing Steel (GCr15): GCr15 bearing steel is the standard cost-effective material for 1203 self-aligning bearings. After professional heat treatment, it features high surface hardness, strong wear resistance and excellent mechanical fatigue resistance. It maintains stable rotational performance and load capacity under dry, normal-temperature working conditions, ideal for general industrial machinery, transmission equipment and conventional mechanical assemblies.

Stainless Steel: Stainless steel 1203 self-aligning bearings provide superior rust-proof, oxidation and weak corrosion resistance. They can effectively resist moisture, humid air and slight chemical contamination, preventing bearing rust and precision loss. Suitable for damp, sanitary and light outdoor working scenarios, they are widely used in food machinery, medical equipment and environmental protection automation devices.

Product Features

Built with double-row ball structure and excellent self-aligning ability, it automatically compensates for shaft deflection and mounting errors. Low friction design supports smooth, low-noise and high-speed operation. Two material options meet economical general use and anti-corrosion sanitary precision requirements. Compact standard size, easy to install and replace with long-term operational stability.

Application Scenarios

1203 self-aligning ball bearings are widely used for rotary support and misalignment correction in general industrial machinery, conveyor equipment, textile machinery, fans and small transmission systems. Bearing steel models are perfect for standard indoor mechanical operation, while stainless steel versions are applicable for humid, clean and corrosion-prone working environments such as medical, food and light industrial automation equipment.

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