Timken Company is a leading global manufacturer of high-performance bearings, power transmission products, and related services. Founded in 1899 and headquartered in North Canton, Ohio, USA, Timken is renowned especially for its expertise in tapered roller bearings, but its portfolio covers a broad range of bearing types and industrial applications.
1. Key Bearing Types Offered by Timken
A. Tapered Roller Bearings
Timken’s flagship product.
Designed to manage combined radial and axial loads.
Consist of inner ring (cone), outer ring (cup), rollers, and cage.
Used in automotive, heavy machinery, and rail applications.
B. Cylindrical Roller Bearings
High radial load capacity.
Low friction for high-speed applications.
Available in various configurations (single row, double row).
C. Spherical Roller Bearings
Designed to accommodate misalignment and shaft deflection.
Support very heavy radial and moderate axial loads.
Ideal for mining, steel mills, and paper industries.
D. Ball Bearings
Deep Groove Ball Bearings: Support radial and light axial loads; used in electric motors and appliances.
Angular Contact Ball Bearings: For high-speed and high-precision applications.
E. Needle Roller Bearings
Compact design with small-diameter rollers.
High load-carrying capacity for limited space.
F. Thrust Bearings
Designed for axial loads.
Types: Thrust ball, tapered roller thrust, spherical roller thrust.
2. Key Features of Timken Bearings
Durable construction with high-quality steel
Advanced surface finishes for reduced friction
Precision-engineered cages and rollers
Sealing solutions for improved contamination resistance
Engineered for specific load and speed requirements
3. Applications
Timken bearings are used in:
Automotive (wheel ends, transmissions, differentials)
Railroad (railcar axles, traction motors)
Aerospace (jet engines, gearboxes)
Construction Equipment
Agriculture Machinery
Wind Energy
Industrial Drives, Gearboxes, Pumps
4. Timken Bearing Numbering System
Timken uses a detailed bearing numbering system to convey:
Bearing type
Size and dimensions
Internal design
Precision class
Special features (e.g., sealing, cage material)
Example: LM48548/LM48510
LM48548 = Cone
LM48510 = Cup
Together, they form a tapered roller bearing assembly.
5. Specialized Timken Technologies
Timken® Precision Bearings – Designed for machine tools and high-speed applications.
Timken® AP (All-Purpose) Bearings – Preassembled, sealed rail bearings with long service life.
Timken® Debris-Resistant Bearings – Special coatings and materials to survive contaminated environments.
Wear-Resistant Bearings – Engineered for harsh, wear-intensive applications.
Split Cylindrical Roller Bearings – Easy to install/remove, ideal for shaft-mounted systems.
6. Services Offered by Timken
Bearing inspection and reconditioning
Custom engineering and application support
On-site technical services
Predictive maintenance solutions
Training and bearing failure analysis
7. Timken Power Transmission Products
In addition to bearings, Timken also manufactures:
Gears and gearboxes
Chain and belts
Couplings
Lubrication systems
Condition monitoring tools
