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Knowledge Base
Bearing Sourcing & Technical Guides
Practical playbooks for B2B distributors importing wheel bearings, hub assemblies, and trailer / heavy-truck units from China. Written for sourcing teams, not consumers.
Technical Guide
How to Identify Wheel Bearing Failure
Wheel bearing failure costs distributors returns and reputation. Here are the 7 unmistakable signs of a bad wheel hub bearing — humming, vibration, ABS faults, and more — that every aftermarket sourcing team should know.
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Sourcing GuideDAC Bearings vs Hub Assemblies
DAC double-row sealed bearings or pre-assembled hub units? This guide explains the structural differences, vehicle fitments, and stocking economics for B2B aftermarket distributors choosing between DAC and Gen-2/Gen-3 hub assemblies.
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ReferenceOEM Cross-Reference: Decoding Bearing Part Numbers
Decode any wheel bearing part number in 30 seconds. This guide explains SKF VKBA, Timken HA590, FAG 805xxx, NSK BWD/BWKH, NTN HUB and Koyo DAC/KWD coding so distributors can match references quickly.
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Sourcing GuideFOB vs CIF vs DDP for Bearing Imports
Importing wheel bearings from China? FOB Qingdao, CIF destination, or DDP doorstep — each has hidden cost and risk. This guide explains the practical differences for a distributor's first 5–10 container imports.
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Sourcing Guide9-Point Audit Checklist for China Bearing Factories
Sourcing wheel bearings from China but worried about quality? This 9-point audit checklist (certificates, sample testing, factory visits, third-party inspections) helps distributors verify any Chinese bearing supplier before placing a bulk order.
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