P4 / P2 In Stock · New arrivals: 7020-C-T-P4S spindle bearings

01 / About Dunyu
FAG brand logo Authorized Schaeffler Distributor

Engineering Trust
for High-End
Manufacturing.

Shanghai Dunyu Bearing Co., Ltd. is an officially authorized Schaeffler FAG precision distributor, dedicated to OEM supply and high-end industrial distribution of precision bearings and linear motion products.

Built on an ISO 9001 and DIN-compliant precision testing system, we serve machine tool OEMs, wind power gearbox producers, medical & semiconductor factories and aerospace manufacturers across 40+ countries -- with a vision to become the most reliable precision bearing partner for global high-end manufacturing.

Founded In
Shanghai
Global Markets
40+
Authorization
FAG·OEM
Dunyu Bearings headquarters building in Shanghai
HQ · SHANGHAI
Company main entrance
Modern office workspace
Dunyu Bearings facility exterior
Engineering team at work
SINCE · DUNYU
SCHAEFFLER · AUTHORIZED
02 / Core Strength

Four Pillars of
Precision Capability.

From a temperature-controlled high-precision warehouse to a DIN-standard inspection workshop -- our integrated capability ensures every FAG bearing arrives with its micron-level integrity intact, ready for the most demanding spindle, gearbox and aerospace applications.

Precision inspection workshop / 01

Precision Application Engineering Team

Senior application engineers provide on-site installation guidance, lubrication selection, preload calculation and failure analysis tailored to spindle, gearbox and high-speed machinery scenarios.

ON-SITE · TECHNICAL SUPPORT
DIN standard inspection system / 02

DIN-Standard Inspection System

ISO 9001 & DIN 620 compliant testing -- runout, bore tolerance, raceway geometry and noise verified for every batch with full precision certification documentation.

DIN 620 · ISO 492
Shockproof precision logistics packaging / 03

Shockproof Logistics Network

Vibration-controlled packaging, climate-monitored containers and dedicated handling protocols protect micron tolerances door-to-door across 40+ countries.

VIBRATION · CONTROLLED
Temperature-controlled high-precision warehouse / 04

High-Precision P4 / P2 Inventory

Temperature-controlled warehouse stocks angular contact, cylindrical roller and super-precision spindle bearings -- full FAG range, ready for immediate global dispatch.

P4 / P2 · IN STOCK
Warehouse aisle view
Climate-controlled stock area
Inspection workstation
Precision packaging
03 / Service Value

Three Promises
to High-End Clients.

Every engagement is anchored on three non-negotiable customer values -- running accuracy at the micron level, professional installation guidance from veteran engineers, and end-to-end precision protection from Shanghai to your factory floor.

/ 01

Ultra-High Running Accuracy

P4/P2 grade bearings deliver runout below 3 µm -- enabling spindle stability, vibration suppression and consistent surface finish for precision machining.

RUNOUT ≤ 3 µm
/ 02

Professional Installation Guidance

Application engineers support preload calculation, fit verification, lubrication regimes and on-site commissioning -- eliminating installation risk in critical assemblies.

ENGINEERS · ON-CALL
/ 03

Full-Cycle Precision Assurance

From DIN inspection to shockproof delivery and post-sale technical follow-up -- every micron of accuracy is preserved across the entire supply lifecycle.

END-TO-END · GUARANTEED
04 / Certifications

Certified by
Authority.

Official Schaeffler FAG distribution authorization, ISO 9001 quality management and DIN 620 dimensional tolerance compliance -- every credential verified, every batch traceable, every shipment certified.

FAG Schaeffler official authorization certificate AUTHORIZED

Schaeffler FAG Distribution Authorization

● VERIFIED

Official authorization granting full access to genuine FAG precision bearings with original documentation and traceability.

ISO
9001

ISO 9001 Quality Management

Certified quality system covering procurement, inspection, storage, and dispatch.

DIN
620

DIN 620 Tolerance Standard

German national standard for rolling bearing dimensional and running accuracy classes.

P4 / P2

Precision Grade Compliance

Full compliance with FAG super-precision grade specifications for spindle applications.

GLOBAL

Full Traceability Documentation

Each shipment ships with batch records, inspection reports and origin certification.

05 / Track Record

Trusted by Global
High-End Manufacturers.

From factory audits by German and Italian machine tool OEMs to international industrial exhibitions in Hanover and Tokyo -- our footprint spans the world's most demanding high-end manufacturing communities across DE · IT · US · JP · KR and 35+ more.

Overseas Client Audits

On-Site Visits · Shanghai HQ
Overseas client factory audit
DE · CLIENT
International client inspection
IT · CLIENT
Customer technical review
US · CLIENT
Foreign delegation walkthrough
JP · CLIENT

International Industry Exhibitions

Hannover · Tokyo · Milan · Chicago
International bearing trade show booth
Industrial fair display
Global industry exposition
Precision bearing exhibition
Countries Served
40+
Core Markets
5·Tier-1
Industries Covered
6+
Response Window
≤ 24H
06 / Next Step

Discuss your
precision project
with our engineers.

Share your bearing specification, drawing or application requirement. Our application engineering team replies within one business day with a tailored precision solution and stock availability.

Headquarters · Shanghai ● ONLINE
Company
Shanghai Dunyu Bearing Co., Ltd.
Address
Room 328, Building 1, No. 858 Fenggao Road,
Fengxian District, Shanghai, China
Markets
DE IT US JP KR +35
Response Window ≤ 24 H · MON-FRI

© DUNYU BEARINGS · AUTHORIZED SCHAEFFLER FAG DISTRIBUTOR