72187/72487 Single Row Separable Imperial Tapered Roller Bearing 47.625x123.825x36.512mm Truck Axle Equipment

The 72187/72487 inch-size tapered roller bearing is designed for heavy vehicle axles and engineering machinery, bearing combined radial and single-way heavy axial impact load.
It is widely used in truck wheel hubs, semi-trailer axles and construction transport equipment where heavy load and easy clearance adjustment are required.

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Model

72187/72487 (Cone:72187, Cup:72487)

Inner Diameter (ID)

47.625mm (1.875 inch)

Outer Diameter (OD)

123.825mm (4.875 inch)

Width

36.512mm (1.4375 inch)

Structure

Single row separable imperial tapered roller bearing, split cone & cup assembly

Material

GCr15 high carbon chromium bearing steel

Gear Type (if any)

None

Full technical data and drawings available upon request

• Separable cone and cup split design for convenient installation, disassembly and hub clearance calibration
• Crowned tapered rollers reduce edge stress, outstanding resistance to road vibration and heavy impact load
• Standard universal inch size, fully interchangeable with global aftermarket vehicle replacement parts
• Paired back-to-back mounting can bear bidirectional axial thrust for wheel hub assemblies
• Heat-treated high hardness steel improves wear resistance for long-distance heavy transport mileage
• Custom precision grades and clearance options can be produced to match various harsh working conditions

Reduces abnormal bearing wear and extends maintenance cycle of heavy transport vehicles

This bearing is widely used in:

• Heavy truck and semi-trailer wheel hub rotary support assemblies
• Construction dump truck and mining transport vehicle axles
• Large agricultural tractor and farm machinery transmission shafts
• Industrial heavy reducers and heavy-duty rotary positioning components

Ideal for customers looking for reliable heavy-load inch tapered bearing solutions

• 25+ years experience in imperial tapered roller bearing manufacturing
• Exported to many countries worldwide
• Rich experience in OEM & bulk custom bearing projects
• Strict full-process quality inspection before shipment
• Fast professional technical response within 24 hours
• Stable mass supply for long-term vehicle and machinery factory cooperation

We focus on stable anti-impact heavy-load performance and reliable long-term partnership

• Raw material composition and hardness inspection
• Precision grinding for tapered raceway and crowned rollers
• Standard quenching & tempering heat treatment control
• Composite radial-axial load fatigue test and clearance grouping detection
• Full dimensional final inspection before delivery

Ensuring consistent smooth anti-impact rotation performance for every bearing set