1. Product Overview

5L6923 cylindrical roller bearing is specially matched for large Caterpillar wheel loaders 950 and 966C, manufactured fully compliant with Caterpillar OEM drawing dimensions. The complete set adopts a three-piece separable structure including inner ring, roller cage and outer ring. It is installed on heavy-load support positions of loader travel drive axles and gearbox transmissions. It stably buffers high-strength alternating radial impact loads during heavy shoveling, climbing and long-distance transportation of loaders. The split structure avoids disassembling the complete transmission box, allowing separate replacement of damaged inner ring, outer ring or roller assemblies, which greatly reduces loader maintenance downtime and operation losses of mines and sand plants.

2. Material & Processing Advantages

1. Main Material: Integrally forged from premium high-carbon chromium bearing steel with complete quenching and tempering heat treatment. Uniform hardness and stable metallurgical structure of rollers and raceways deliver excellent resistance to fatigue, pitting and surface spalling, capable of enduring continuous heavy impact loads of loaders.
2. Cylindrical Roller Load Structure: Line contact between cylindrical rollers and raceways provides much larger effective contact area than ball bearings, with extremely strong radial load capacity to adapt to full-load heavy shoveling conditions of loaders.
3. Separable Split Structure: The inner ring and outer ring are fully detachable. During maintenance, only the worn damaged single component can be replaced instead of the whole bearing set, significantly cutting spare parts purchasing costs for equipment maintenance.
4. Super-Finished Raceway: Mirror precision grinding on inner and outer raceways achieves ultra-low surface roughness, reducing running friction and operating temperature. It avoids high-temperature seizure and abnormal wear failures during long-term continuous operation.

3. Precision Grade Selection Guide

• P0: Standard general precision with high cost performance, suitable for daily earth shoveling and routine maintenance replacement of loaders in sand plants and construction sites
• P6: Tighter dimensional tolerance for raceway and outer diameter reduces running vibration and heat generation, ideal for mining fleets with 24-hour non-stop heavy-duty shoveling operation
• P5: High-precision grade for complete loader overhaul and travel transmission performance upgrade, with greatly improved running concentricity and stability

4. Quality & Installation Instruction

5L6923 cylindrical roller bearing is strictly manufactured to Caterpillar OEM specifications, complete with separable three-piece matching components. No extra accessories are required for direct installation on loader transmission positions. Every finished product passes full inspection on bearing hardness, internal clearance, raceway finish and dimensional tolerance before delivery. Custom P0/P6/P5 precision grades are available for bulk orders. Installation steps: 1. Thoroughly clean transmission axle/gearbox mounting base and drive shaft journal to remove silt and grease; 2. Press fit inner ring onto drive shaft first, then assemble roller cage; 3. Align and install outer ring, fasten positioning parts evenly; 4. Fill high-temperature matched lubricating grease and finish assembly & commissioning.

5. Application Scenarios

Widely applied to gearbox and drive axle repair of Caterpillar 950/966C wheel loaders, export wholesale of Caterpillar construction machinery spare parts, and regular equipment maintenance of large mines, sand aggregate plants and infrastructure engineering fleets. It solves common failures of original bearings such as abnormal running noise, roller pitting wear, raceway spalling, excessive transmission clearance, reduced load capacity and high temperature overheating. The separable split structure allows replacement of only damaged parts, effectively saving purchasing costs for complete equipment overhaul.