Single Trailer Bearings NSK

Single Trailer Bearings

Single trailer bearings are now available for caravans, boat trailers and caravans up to 3t.

All radial and axial load bearings sold by Couplemate are Japanese and as a result, the best quality money can buy.

Most tapered roller bearings are made of a type of steel known as 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 and cone or outer ring and inner races up to 3t.

NSK Bearing Specifications

1. LM11949/10 – ID 19.05mm – OD 45.20mm
2. LM12749/10 – ID 22.00mm – OD 45.20mm
3. 30205J2Q – ID 25.00mm – OD 52.00mm
4. LM44649/10 – ID 27.00mm – OD 50.29mm
5. LM67048/10 – ID 31.75mm – OD 59.10mm
6. LM68149/10 – ID 35.00mm – OD 59.10mm
7. LM16849/111 – ID35.00mm – OD 59.97mm
8. LM15123/245 – ID 31.75mm – OD 61.95mm
9. LM29749/10 – ID 38.10mm – OD 65.088mm
10. 48548/10 – ID 34.925mm – OD 65.08mm
11. 14276/25A – ID 31.75mm – OD 69.01mm
12. 16150R/2848 – ID 38.1mm – OD 72.23mm
13. 501349/10 – ID 41.30mm – OD 73.43mm
14. 2788/20 – ID38.10mm – OD 76.20mm
15. 16150R/2848 – ID 38.1mm – OD 72.23mm
16. LM25580/20 – ID 44.45 – OD 82.93mm
17. HR30210J – ID 50mm – OD 89.96mm

Bearing Inspection

1. When inspecting trailer bearings, it is not difficult to identify bad bearings.
2. Run a thumbnail over the surface of the roller bearing. It should be silky smooth with no bumps.
3. If the bearing grease is discoloured, then both bearings need replacement. Discoloured means black or brown grease.
4. Black grease contains carbon black from a worn casing.
5. 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.

More Trailer and Caravan Bearing Kits here

• 1.6t Dexter Trailer Kit
• Holden Standard and Marine Bearing Kit
• Ford Standard Slimline and Marine Bearing Kit
• Ford Parallel Bearing Kits
• Cruisemaster 2t Bearing Kit
• Dexter Caravan Bearing Kits
• 2t Alko Bearing Kit
• 3t Alko Bearing Kit
• Simplicity Bearing Kit