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Key Characteristics and Industrial Uses of 1210K Bearing

54 Published by admin Sep 01,2026

The 1210K is a high-performance double-row self-aligning ball bearing widely adopted in general industrial machinery. It features standard dimensions of 50mm inner diameter, 90mm outer diameter and 20mm width, with a lightweight structure that suits medium-load mechanical transmission scenarios. The letter “K” marks its core design feature: a 1:12 tapered inner bore, which differentiates it from standard straight-bore bearings and enables more flexible and stable shaft installation.

The most remarkable advantage of the 1210K bearing is its excellent self-aligning performance. The integrated spherical outer ring raceway allows it to compensate for shaft misalignment of up to ±3 degrees caused by assembly errors, shaft deflection or equipment vibration. This capability effectively reduces operational friction, avoids abnormal wear, and maintains stable rotation even in less precise mounting conditions. Its double-row steel ball layout greatly enhances radial load capacity, while it can also bear moderate bidirectional axial loads, balancing load resistance and operational flexibility perfectly.

Manufactured from high-purity chrome steel with precision honed raceways, the 1210K bearing delivers low noise, low vibration and high-speed stability. Equipped with a durable nylon or steel cage, it minimizes centrifugal force and friction loss, supporting long-term continuous operation. The tapered bore design allows easy assembly and disassembly with adapter sleeves, simplifying equipment maintenance and improving overall work efficiency.

Thanks to its reliable tolerance and cost-effectiveness, the 1210K bearing is extensively used in precision motors, textile machinery, conveyor equipment, woodworking machines and general industrial transmission systems. It remains a fundamental and trustworthy component for ensuring smooth and efficient mechanical operation in various medium-duty industrial applications.

If you need any brand bearings or any models of bearings, please contact me!Contact: Grace
Email: ntn@llhbearing.com
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