TORRINGTON Bearing Code Explanation (Part 1)

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TORRINGTON spherical roller bearings have a specific code system that helps identify their components and features. In this article, we will focus on the rear code of these bearings. (1) Cage Types: - BR: Bronze cage - CJ: Steel cage (without rib) - VCJ: Nylon cage - VJ: Steel cage (with ribs) (2) Internal Design: - W33: Oil groove and three oil holes on the outer ring (3) External Features and Dimensions: - K: Tapered bore with a ratio of 1:12 (4) Clearance Groups: - C2: Smaller than standard clearance (C0) - C0: Standard clearance - C3: Larger than C0 - C4: Larger than C3 - C5: Larger than C4 - C08: High-precision bearing with an outer ring that ensures accurate rotation For TORRINGTON needle roller bearings, the code structure includes several key elements. The front code indicates whether the bearing is metric or imperial, as well as its basic design features. For example: - The letter "F" at the beginning indicates a metric-sized bearing. - If there is no "F", it means the bearing is inch-based. Most standard needle roller bearings come with full needles and cages. When a cage is used, the prefix "J" is added to the code. Some bearings are available in two different sizes. A "H" in the code indicates a larger size, while the absence of "H" suggests a smaller size. Other prefixes include: - M: Blind hole type - P: Small through hole with a cage - T: Single-sided seal - TT: Double-sided seal - G: Superfine finish Additionally, there are special codes for unique variations of bearings. --- **Related Bearing Knowledge:** - Motor Bearing Abnormal Noise Analysis and Solutions - Causes of KOYO Imported Bearing Damage and Solutions - Understanding Bearing Noise and Its Characteristics - The Relationship Between NSK Bearing Material and Function This article is sourced from the China Bearing Network. Please cite the original source when sharing: http://www.chinabearing.net Previous: Analysis and Prevention of Ferrule Grinding Burns (Part 2) Next: Rules and Conditions for NSK Bearing Standards

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