Home / Case Studies / Apler de Colombia sas Heavy-Duty Trailer Wheel Hub Taper Roller Bearing Case (594/592A)
Case Study / Heavy-Duty Truck Bearings

Apler de Colombia sas Heavy-Duty Trailer Wheel Hub Taper Roller Bearing Case (594/592A)

Reinforced 594/592A inch tapered roller bearings for Colombian heavy-haul mountain trailers—2.7x longer service life, 26% higher dynamic load, 75% fewer tire-wear faults and 21% lower cost.
2.7x
Service life
+26%
Dynamic load
-75%
Tire-wear faults
-21%
Procurement cost

Client Overview

Apler de Colombia sas is a professional Colombian commercial-vehicle parts supplier providing heavy-duty truck hub bearings, wheel hub assemblies and matching plastic chassis accessories to local long-distance transport fleets.

Fleets run trailers over 60 tons on long steep slopes with bumpy, muddy, gravel-strewn roads that severely erode wheel hub bearings and push maintenance expenditure sharply higher.

Project Goals

Deliver cost-effective reinforced heavy-duty inch tapered roller bearings to replace expensive imports—raising service life and cutting failure rate and procurement cost, while stabilizing wheel preload clearance under full-load mountain operation.

Engineering Challenges

Extreme Combined Load

60-ton full load plus continuous radial load on bumpy climbs and instantaneous axial braking impact caused pitting and spalling within 3–4 months.

Contaminated Hub Environment

Mountain rain, mud and gravel splashed into hub cavities, emulsifying grease and triggering rust and locking.

Preload Instability

Manual clearance adjustment varied by technician—over-tight burnout or excessive play causing wheel vibration and irregular tire wear.

High-Cost Imported Supply Chain

Long overseas delivery cycles and high unit price inflated fleet batch maintenance expenses.

Technical Solution

High-Toughness Bearing Steel

Rings and rollers use GCr15 steel with bainite quenching at 60–62HRC, resisting instantaneous shock from bumpy roads.

Optimized Roller Geometry

Lengthened tapered contact surface lowers unit pressure; thickened stamped steel cage prevents deformation and roller separation.

Multi-Lip Sealing & Wide-Temp Lubrication

Thickened multi-lip skeleton seals with extreme-pressure hub grease run stable at -30~120°C, blocking mud, water and sand.

We replaced costly imported hub bearings with EGEN's reinforced inch design—our mountain fleets now run far longer between services and our breakdown rate dropped sharply.
AP
Carlos Mejia
Fleet Parts Director, Apler de Colombia sas

Achieved Results

Customized 594/592A bearings achieved over 10 months average service life on heavy trailers, cutting tire-wear faults by 75% and procurement cost by 21%; Apler ended bulk import orders and signed an annual repeated-supply framework contract with EGEN.

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