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Tapered roller bearing, silver steel, conical rollers in cage

Timken

Timken 30228 taper roller bearing 140 x 250 x 45.75 mm

SKU CH-TMA9-9PBHM MPN 30228

Taper roller bearing measuring 140 x 250 x 45.75 mm supports combined radial and axial loads in automotive and industrial applications

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Precision tapered rollers handle combined radial and axial loads
  • Exact 140 mm bore, 250 mm OD, 45.75 mm width for direct fit
  • Timken 30228 model engineered for consistent rolling performance
  • Supplied as single unit in protective box for immediate use
  • Three-year parts coverage plus one-year labour backing included

Taper roller bearing specifications

The Timken 30228 is a taper roller bearing with dimensions of 140 x 250 x 45.75 mm. It is supplied as a single unit in a box and carries the manufacturer part number 30228. This component is designed to handle combined radial and axial loads in rotating assemblies.

Typical applications and limitations

The bearing suits maintenance and repair tasks where a 140 mm bore and 250 mm outside diameter are required. It is not intended for applications needing different bore sizes, alternative load ratings, or sealed and pre-lubricated variants. Buyers requiring integrated housings or different roller geometries should look elsewhere.

Critical dimensional constraint

The 140 mm inner diameter, 250 mm outer diameter and 45.75 mm width determine whether this bearing fits the target shaft and housing. These three figures must match the installation specifications exactly for correct function.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $197.99
Pricier than about 78% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameTIMKEN
Model name30228
Product typeTest Equipment
In the box
Number of items1 pack

Questions about this item

What shaft diameter must I already have to fit the 140 mm bore of this 30228 bearing?

The bearing’s inner diameter is 140 mm, so the shaft or spindle you are mounting it on must measure 140 mm at the seating surface.

Will the 250 mm outside diameter of this 30228 bearing fit inside my existing housing?

The outer diameter is 250 mm; the housing bore must be machined to 250 mm with the correct tolerance for a press or slip fit.

How can I confirm the 30228 bearing is seated correctly after installation?

Rotate the assembly by hand — it should turn smoothly without binding, and the 45.75 mm width should sit flush against the shoulder or spacer.

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