/ 01 Engineering
Load Calculation Team
In-house engineers provide bearing selection, dynamic load rating analysis, and failure root-cause diagnosis for extreme conditions.
Response Time
< 24h
DUNYU BEARINGS
Authorized Timken Distributor
ISO 9001 CERTIFIED
OFFICIAL AUTHORIZED
01 / Heavy-Duty OEM Supply
Official Timken
Authorized
Distributor.
Shanghai Dunyu Bearing Co., Ltd. -- full Timken bearing line for construction machinery, mining, steel, wind power and marine engineering. Backed by ISO 9001 quality control, in-house load calculation team and global heavy cargo logistics.
Full origin traceability & mill certs
48h emergency dispatch for heavy SKUs
Load calculation & failure analysis team
Serving 45+ countries worldwide
- Countries Served
- 45+
- QC Standard
- ISO.9001
- Heavy SKUs
- 8K+
- Emergency Lead
- 48h
Official
AUTHORIZED
Certification
Timken Authorized Distributor
Shanghai Dunyu Bearing Co., Ltd.
02 / Core Technical Advantages
Heavy-Load
Engineering
Expertise.
Three core competencies that set us apart in heavy-duty bearing supply: deep technical knowledge, massive model inventory, and real engineering support for extreme operating conditions.
/ 02 Analysis
Failure Analysis Capability
Comprehensive bearing failure diagnosis -- fatigue, contamination, misalignment -- with corrective OEM specification recommendations.
Accuracy
100%
/ 03 Inventory
Heavy-Duty Stock Depth
8,000+ heavy-load SKUs in warehouse -- tapered roller, spherical roller, cylindrical roller -- ready for bulk pull and emergency dispatch.
Heavy SKUs
8K+
ISO 9001 Certified
Full-Process Quality Control
Global Coverage
45+
Countries Served
Ready to Ship
8K
+
Heavy SKUs In Stock
Priority Pull
48
h
Emergency Dispatch
Load Calc Team
24
h
Engineering Response
03 / Product Categories
Heavy-Duty Bearing Lines.
Full Timken Range.
Complete Timken bearing portfolio for heavy industry -- from tapered roller to spherical roller, all with full traceability and bulk supply capability.
/01
54 SKUs
Tapered Roller Bearing
Mining · Steel · Gearbox
Browse Category
/02
30 SKUs
Deep Groove Ball Bearing
Motor · Conveyor · Pump
Browse Category
/03
27 SKUs
Cylindrical Roller Bearing
Spindle · Pump · Compressor
Browse Category
/04
20 SKUs
Spherical Roller Bearing
Wind Power · Crane · Mill
Browse Category
/05
5 SKUs
Thrust Ball Bearing
Screw · Crane · Vertical Shaft
Browse Category
/06
5 SKUs
Angular Contact Bearing
Spindle · Turbine · Robotics
Browse Category
/07
3 SKUs
Pillow Block Bearing
Conveyor · Agitator · Fan
Browse Category
/08
1 SKUs
Miniature Bearing
Instrument · Medical · Servo
Browse Category
04 / Featured Products
Heavy-Load Flagship
Timken Models.
TIMKEN
TIMKEN
TIMKEN
TIMKEN
05 / Application Scenarios
Five Extreme Heavy-Duty
Operating Conditions.
Timken bearings engineered for the most demanding industrial environments -- where standard bearings fail, ours perform.
/ 01
Steel & Metallurgy
Rolling mill rolls, continuous casting machines, blast furnace fans -- extreme heat, scale and shock load.
Temp: up to 200°C
Load: Ultra-Heavy
/ 02
Machine Tools & Spindles
High-precision spindle bearings for CNC machining centers, grinding machines and heavy lathes.
Speed: High RPM
Precision: P4/P5
/ 03
Marine & Offshore
Propeller shafts, rudder systems and offshore crane slewing rings in saltwater corrosive environments.
Environment: Corrosive
Load: Radial + Axial
/ 04
Wind Power & Blowers
Wind turbine main shafts, gearboxes and generator bearings handling variable dynamic loads.
Life: 20+ Years
Vibration: Low
/ 05
Construction Machinery
Excavator swing drives, bulldozer final drives, crane hoisting mechanisms under severe shock loads.
Shock Load: Extreme
Dust: IP67+
/ 06
Mining Equipment
Jaw crushers, ball mills, conveyor drives and mining trucks operating in abrasive dusty conditions.
Contamination: Severe
Load: 2000+ kN
06 / Trust & Credibility
Trusted By Heavy Industry
Across 45+ Countries.
Headquarters
Shanghai Dunyu Bearing Co., Ltd.
Fengxian District, Shanghai, China
ISO 9001
Certification
Official Timken Authorized Distributor
What Our Clients Say
"Dunyu delivered 200 sets of Timken tapered roller bearings within 48 hours for our emergency mine shutdown. Full traceability docs included. Exceptional service."
"Their load calculation team identified the root cause of our rolling mill bearing failures. The OEM scheme they proposed increased service life by 40%."
"Reliable supply of heavy-duty Timken bearings for our construction machinery fleet. Consistent quality, competitive pricing and professional logistics."
"ISO 9001 process control is evident in every shipment. Every bearing comes with proper documentation and passes our incoming inspection without issues."
"We have been sourcing Timken spherical roller bearings from Dunyu for 3 years. Consistent quality and their emergency delivery capability saved us multiple times."
"Dunyu supplied main shaft bearings for our wind turbine retrofit project. Technical support was outstanding -- they understood our application perfectly."
07 / Project Service Highlights
End-To-End Heavy Project
Service Capability.
Emergency Supply
Mine-down or steel mill stoppage? Priority pull from heavy-stock SKUs with 48h dispatch guarantee. Air-freight escalation available for critical shutdowns.
Dispatch
48h
Load Calculation Support
In-house engineers provide bearing selection, dynamic/static load rating analysis and OEM specification for new machinery or replacement scenarios.
Response
<24h
Failure Analysis
Comprehensive diagnosis of bearing failures -- fatigue spalling, contamination, misalignment, overload -- with corrective OEM scheme recommendations.
Traceable
100%
Heavy Cargo Logistics
FCL/LCL, oversize cargo, port-direct dispatch and full export documentation to mining sites and EPC projects across 45+ countries.
Countries
45+
Supply Framework Agreement
Dedicated heavy-duty model stock reservation, supply framework contracts and priority allocation for OEM production line continuity.
Grade Supply
OEM
Full Compliance Docs
Mill certificates, origin traceability, ISO 9001 quality records, inspection reports and export compliance documentation for every shipment.
9001 Certified
ISO
Cooperation Process
01
Inquiry & Spec
Send bearing model, working conditions or drawing
02
Quotation 24h
Formal quote with traceability docs within 24 hours
03
Sample & Testing
Sample verification and trial batch for heavy-load conditions
04
Supply & Logistics
Framework agreement, dedicated stock, heavy cargo dispatch
08 / Project Consultation
Heavy-Load Project?
Get Your
Bearing Spec.
Submit your bearing model number, working conditions or technical drawing. Our load-calculation team responds within 24 hours with a traceable Timken supply scheme, lead time and heavy logistics plan.
- Formal quotation within 24 hours
- Full traceability documentation
- Load calculation & failure analysis
- 48h emergency dispatch available
- Heavy cargo logistics worldwide
- ISO 9001 quality compliance
© Shanghai Dunyu Bearing Co., Ltd. -- Authorized Timken Distributor