Tapered Roller Bearing Set 13685/13621 – Replaces Cat Parts 031-1348 | For Wheel Hub & Axle | In Stock USA/AU/UAE

Our 13685/13621 tapered roller bearing set is a high-precision, drop-in replacement for Cat part number 031-1348, widely used in wheel hubs, axle assemblies, and final drives of medium-to-large Cat machinery—including D6/D8 dozers, 950/966 wheel loaders, 980/992 articulated trucks, and mining support equipment. Designed to handle extreme radial and axial loads simultaneously, this bearing ensures smooth rotation, long service life, and reduced downtime—even in harsh, high-contamination environments.

• Exact Replacement for Cat 031-1348
  Fully interchangeable with OEM dimensions and performance specs—no machining or adapters needed. Ensures reliable operation in original Cat® housings.
• High-Load Tapered Design
  Optimized contact angle and roller geometry distribute stress evenly, supporting combined radial and thrust loads common in axle and hub systems.
• Premium Materials & Precision Manufacturing
  • Cone & Cup: Made from vacuum-degassed GCr15 (AISI 52100) chrome steel
  • Heat-treated to HRC 60–64 for maximum fatigue and wear resistance
  • Super-finished raceways minimize friction and heat buildup
• Standard Dimensions (Imperial/Metric Hybrid)
  • Bore (Cone ID): 38.1mm(11/2'')
  • Outer Diameter (Cup OD): 69.012 mm (2.717")
  • Assembly Width: 19.05 mm (0.750")
  • Compatible with standard Timken SET20 series
• Pre-Greased & Ready for Installation
  Factory-lubricated with high-viscosity lithium complex grease stable from –30°C to +150°C—ideal for construction and mining climates.
• In Stock – Global Fulfillment Network
  We maintain ready inventory in USA, Australia, and UAE warehouses, enabling fast dispatch to North America, Oceania, Middle East, Africa, and Latin America. Sample sets (1–2 pcs) available!
• Quality You Can Verify
  Every batch undergoes dimensional inspection and hardness testing. Material Test Reports (MTR), ISO 9001 certification, and CAD drawings (STEP/IGES) provided upon request.

We currently have 865.pcs of 13685/13621 Automotive Differential Bearing / Tapered Roller Bearing In Stock. If you are in need of 13685/13621 Bearing, just feel free to contact us. We can assure you the best quality; the most competitive prices; the shortest delivery time and the highest quality service.

• OEM-equivalent quality at 40–60% lower cost
• No waiting – in-stock and ships within 24 hours
• Technical team ready to confirm fitment or provide cross-references
• Trusted by equipment rebuilders in 40+ countries

Besides,we also have the models given as below in Stock :