•  
• Bearing model
• Model
  KBC Tapered Roller Bearings 30210J
• internal diameter-(mm)
• d
  50
• Outer diameter -(mm)
• D
  90
• Bearing thickness-(mm)
• B
  21.75
• Dynamic load-(kN)
• cr
  94000
• Static load-(kN)
• cor
  91500
• Fatigue load limit-(kN)
• Fatigue load limit
  7.5
• Reference speed-(r/min)
• Reference speed
  4000
• Limit speed-(r/min)
• Limit speed
  5000

30210J Japanese Wheel Bearing

The 30210J Japanese wheel bearing is the inner bearing for the 2t and 3t hub, disc, and drum assembly.

Most trailers, caravans, and campers in Australia use tapered roller bearings. These are usually made from high-carbon chromium steel (often called chrome steel) and have cylindrical rollers. Some bearings can include other materials like stainless steel, ceramics, or plastic.

Trailers and caravans can only be as strong as its weakest component. In our experience, this is almost always the wheel bearings.

Couplemate™️ only stocks Japanese bearings because they are reliable and well-made. Each bearing includes a cup and cone to suit a variety of Australian trailers and caravan axle hubs.