BD110-1 Final Drive Bearing: What to Check Beyond 110×140×28 mm

Bearing dimensions are a starting point when sourcing parts for excavator travel reducer repairs. For the BD110-1 bearing listed at 110×140×28 mm, buyers also need to confirm the complete designation, internal configuration and installation requirements.

The product information describes a double-row angular contact ball bearing for excavator final drive and gearbox applications. It also lists BD110-1SA as a related reference. For repair workshops, final drive rebuilders and parts distributors, a documented specification review provides a clearer basis for purchasing than appearance or an abbreviated model code alone.

The listed dimensions are a 110 mm bore, 140 mm outside diameter and 28 mm width. State this order clearly in enquiries and receiving records to avoid confusing bearing dimensions with packaging measurements.

When measuring the removed bearing, record its markings, measurement locations and units. Compare the results with the shaft, bearing seat and locating features. Measurements from worn surfaces can support identification, but they should not become acceptance tolerances for a replacement bearing.

Matching these three nominal dimensions provides a basis for further comparison. The complete replacement specification still needs confirmation against the reducer parts information and applicable bearing documentation.

The product page references both BD110-1 and BD110-1SA. Supply a clear photograph of the complete marking on the original bearing and ask the supplier to state the actual delivery designation in the quotation.

Do not establish interchangeability between BD110, BD110-1, BD110-1SA or similar codes solely from the shared BD110 reference. The meaning of a suffix and any approved substitution should be confirmed through the relevant manufacturer documentation or applicable parts catalogue.

If the marking is unreadable, provide the reducer part number, machine serial number and photographs of both bearing faces and the installation position.

The listing describes the product as a double-row angular contact ball bearing. Request a drawing or technical data for the supplied version, including applicable contact angle, clearance or preload requirements, and load ratings.

The provided information does not specify these values. The double-row description and product photographs therefore do not establish a particular load capacity, service life or operating performance.

The product description identifies an open configuration as a point to verify. Confirm whether the supplied bearing includes seals or shields, and whether its lubrication arrangement meets the requirements of the original reducer.

Photographs assist initial discussion. The final configuration, mounting orientation and assembly requirements should be established through the applicable technical documentation.

The product information mentions GCr15 bearing steel as a material commonly associated with this bearing family. This does not independently confirm the material of a particular supplied batch.

Where a specific steel grade is required, include it in the order and agree the supporting material or inspection records. Descriptions such as smooth raceways, wear resistance and stable fit should likewise be assessed against documented requirements. Surface photographs cannot replace hardness, tolerance or life-test results.

The listing states that a test report and outgoing inspection video are available. Request records identifying the supplied version, principal dimensions, quantities and package contents.

On arrival, check the designation, nominal dimensions, visible condition and packaging before installation under the reducer service instructions. Keep shipping dimensions and gross weight separate from bearing specifications.

For BD110-1 or BD110-1SA enquiries, provide the original marking, reducer part number, measured dimensions, quantity and destination. These details support specification review, inspection planning and quotation preparation.