Timken® Single Row Auto Unit Assembly U399A-90012

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TSU (Unit-Bearing)

TSU bearings are self-contained, unitized assemblies that carry heavy radial loads and can manage thrust loads in either direction.

Shaft size range: 30.000 ~ 45.00mm (1.81 ~ 1.77")

Outer bore range: 58.00 ~ 80.00mm (2.28 ~ 3.15")

Design features: Self-contained, unitized assembly. Manages heavy radial loads and thrust loads in either direction.

Applications: Automotive rear wheels, Transmissions, Gear reduction units, Industrial equipment.

Timken offers multiple hands-on videos created to assist you in the installation & disassembly of multiple Timken products.

Make sure you apply the correct torque and measure the "bench end play" before completing any taper bearing installation.

For more detailed bearing nomenclature with regards to prefixes & suffixes, refer to pages iv ~ xi in the attached Timken 699 catalog .pdf

For detailed information regarding factory pre-set "bench end plays" on assemblies, please feel free to call or email for availability.

Unmachined "green" spacer rings, if available, may be purchased to create custom assemblies, please feel free to call or email for availability.

Timken Taper Catalog 699

Timken Complete Dimensional Catalog

Timken stronger by design

Bearing component Single row Unit Bearing assembly

Bearing tolerance Standard (-2)

Shown in catalog Yes

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