Single Trailer Bearings
Single trailer bearings are now available for caravans, boat trailers and caravans up to 3t.
Couplemate sells only Japanese radial and axial load bearings, Which are of the best quality money can buy.
Most tapered roller bearings are made of high-carbon chromium steel, often called chrome steel. Cylindrical rollers are used in tapered roller bearings.
Bearings are also made from other materials, such as stainless steel, ceramics and plastic.
The following single-bearing suit cup, cone, outer ring, and inner races up to 3t.
NSK Bearing Specifications
- LM11949/10 – ID 19.05mm – OD 45.20mm
- LM12749/10 – ID 22.00mm – OD 45.20mm
- 30205J2Q – ID 25.00mm – OD 52.00mm
- LM44649/10 – ID 27.00mm – OD 50.29mm
- LM67048/10 – ID 31.75mm – OD 59.10mm
- LM68149/10 – ID 35.00mm – OD 59.10mm – Australian Ford
- LM68149/111 – ID35.00mm – OD 59.97mm – American Ford
- LM15123/245 – ID 31.75mm – OD 61.95mm
- LM29749/10 – ID 38.10mm – OD 65.088mm
- 48548/10 – ID 34.925mm – OD 65.08mm
- 14276/25A – ID 31.75mm – OD 69.01mm
- 16150R/2848 – ID 38.1mm – OD 72.23mm
- 501349/10 – ID 41.30mm – OD 73.43mm
- 2788/20 – ID38.10mm – OD 76.20mm
- 16150R/2848 – ID 38.1mm – OD 72.23mm
- LM25580/20 – ID 44.45 – OD 82.93mm
- HR30210J – ID 50mm – OD 89.96mm
Bearing Inspection
- When inspecting trailer bearings, it is not difficult to identify bad bearings.
- Run a thumbnail over the surface of the roller bearing. It should be silky smooth with no bumps.
- If the bearing grease is discoloured, then both bearings need replacement. Discoloured means black or brown grease.
- Black grease contains carbon black from a worn casing.
- Brown grease contains moisture or water. (replace bearing immediately)
Bearing New Article
- Why Caravan Bearings and Boat Bearing Fail.
- Had the Bearing Buddy fallen off or stolen?
- Easy Steps to Install a Marine Bearing Seal Correctly.
Further, Japanese bearings last far longer than Chinese, Indian or unmarked trailer bearings.
All brands of NSK Japanese single-trailer bearings are suitable for high-speed use.
Trouble Shooting Aligning Ball Bearings
- Easy Steps to Install a Marine Bearing Seal Correctly
- Video: Vibration Fatigue in Caravans and Boat Trailers
Finally, do not overtighten bearings. Overtightening causes the cage of the bearing to rub against the bearing rollers. As a result, this rubbing creates heat and causes bearing degradation.
Untighten the axle nut sufficiently to free the bearing cage from the bearing rollers.
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