Trailer Wheel Bearing Set L44643/L44610 1in Axle Sealed Inner Bearing
119644
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L44643 / L44610 Trailer Bearing Set
One-hub tapered roller bearing set for a straight 1-inch journal
Replacement bearing set for one compatible boat, personal-watercraft, camping or utility trailer hub. The set uses the common L44643 cone and L44610 cup combination, with one standard bearing and one sealed L44643L-style bearing as described in the supplied kit.
Key Features
- Services one trailer wheel hub
- Tapered roller bearing design for combined radial and thrust loads
- L44643 cone / L44610 cup size family
- One standard bearing and one sealed L44643L-style bearing
- CN standard internal clearance
- Neutral-brand replacement kit
Technical Specs
| Bearing family | L44643 cone / L44610 cup |
| Bore / spindle journal | 25.400 mm / 1.000 in |
| Cup outside diameter | 50.292 mm / 1.980 in |
| Overall bearing width | 14.224 mm / 0.560 in |
| Quantity | Set for 1 hub |
| 4Boats SKU | 119644 |
Compatibility / Fitment Guide
| Check point | Required match | Why it matters |
|---|---|---|
| Spindle journal | Straight 1.000 in / 25.400 mm journal for both bearing positions | A stepped spindle may require two different bearing sizes |
| Existing bearing cone | L44643 / 44643 marking | Confirms bore and cone geometry |
| Existing cup / race | L44610 / 44610 marking; 50.292 mm OD | The cup must match the hub bore and cone |
| Hub type | Hub using the same bearing at inner and outer positions | Some hubs use a larger inner bearing |
| Wheel PCD | 4-inch or 100 mm PCD may appear on compatible hubs | PCD identifies wheel-stud spacing, not bearing size |
Before ordering: Read the numbers stamped on the old cone and cup or measure with a vernier caliper. Do not order solely from wheel diameter, stud count, PCD or trailer type.
Part Number Cross Reference
| Bearing cone | L44643 / 44643 |
| Bearing cup / race | L44610 / 44610 |
| Sealed inner variant | L44643L / 44643L |
| Supplier kit reference | KIT6 |
| 4Boats SKU | 119644 |
Frequently Asked Questions
Does this fit every trailer with a 4-inch or 100 mm PCD?
No. PCD concerns the wheel studs; bearing fit depends on spindle, cone and cup dimensions.
How many hubs does one set service?
One hub. Order two sets for a single-axle trailer with two hubs, or four sets for four hubs.
Does it fit a stepped spindle?
Only if both bearing locations on that spindle use L44643/L44610. Many stepped spindles use a larger inner bearing.
Are hub, grease cap and split pin included?
No. This listing is for the bearing set described; other hub-service parts are not included unless shown in the product images.
Installation note: Replace damaged cups with their matching cones, pack with trailer-wheel-bearing grease, set end float/preload to the hub manufacturer's procedure and recheck after the first journey. For boat trailers, inspect bearings after water immersion.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
