Jiangsu ANDE Precision Bearing Technology Co., Ltd. · Blog

Bearing Industry Insights & Guides

Industry insights, procurement guides, and technical knowledge for bearing professionals.

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Technical Knowledge2026-08-1213 min read

Bearing Internal Clearance: C2 to C5 Classes & Chart

Radial internal clearance grades bearings from tight C2 to loose C5 (ISO 5753-1). See the micrometer bands for a 50 mm bore and how fit and heat cut operating clearance.

Jeff Li

Technical Knowledge2026-08-1016 min read

Miniature Bearings: Sizes, Numbering & Selection

A miniature bearing has an outside diameter around 10 mm or less, down to a 0.6 mm bore. Decode the metric MR and inch R numbering systems, and choose material, ABEC precision, and clearance with confidence.

Jeff Li

Technical Knowledge2026-08-0918 min read

Thin Section Bearings: Types, Sizing & Mounting Guide

A thin section bearing has a radial section under a quarter of its bore. Learn the two families sold under this name, types C, A and X, and the mounting fits that decide survival.

Jeff Li

Technical Knowledge2026-08-0515 min read

How to Read a Bearing Number: Decode Any Designation

Decode any bearing number in three parts: type, size, suffix. The last two digits × 5 give the bore. What 6205, 2RS and C3 mean, plus a cross-brand suffix chart.

Jeff Li

Technical Knowledge2026-07-2816 min read

Needle Roller Bearings: Types, Load Capacity & Selection

Needle roller bearings carry 2–8× the load per unit mass of other types at half the OD. Full guide to the four families, designations, and how to choose.

Jeff Li

Technical Knowledge2026-07-2314 min read

Bearing Lubrication: Grease vs Oil, Intervals & Film Data

Poor lubrication causes 36% of premature bearing failures. Complete guide to grease vs oil, fill %, relubrication intervals, and the film ratio (λ) that sets bearing life.

Jeff Li

Technical Knowledge2026-07-0115 min read

What Is an Angular Contact Bearing? Contact Angles & Selection

Angular contact bearings carry combined radial + axial load at a set contact angle (15°–40°) and mount in pairs — DB, DF or DT. Full selection guide.

Jeff Li

Technical Knowledge2026-06-2514 min read

What Is a Flange Bearing? Types, Codes & How to Choose

Flange bearings mount perpendicular to the shaft. Decode UCF/UCFL/UCFC codes, size the bore (last 2 digits x 5 mm), and choose flange vs pillow block correctly.

Jeff Li

Technical Knowledge2026-06-1713 min read

Sealed vs Shielded Bearings: Speed, Temp & Life Data

Sealed (2RS) bearings cut max speed 40% but extend life up to 4× in dirty environments. Shielded (ZZ) run full speed. Data comparison + decision chart.

Jeff Li

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