Removing the Hub and Bearings
Remove Dust Cap
Bang the cover with a rubber mallet and then pry off using a screwdriver.
Remove Cotter Pin, Nut and Washer
Pull Hub Off Spindle
Remove Outer Bearings
Remove Grease Seal
using a pry bar or screwdriver, pry out the grease seal. Placing the hub back on the tire made it easier.
Remove Inner Bearing
Clean Parts
Removing the Races
I decided to replace the hub so I didn't remove the races. They are in there pretty good. You just have to bang them out.
Measurements
| Spindle Measurement | Value |
|---|---|
| Inner | 1-3/8" or 1.375" |
| Outer | 1-1/16" or 1.063" |
Outer Bearings
| Specification | Details | Notes |
|---|---|---|
| Make/Model | Koyo L44648 | Replaced by L44649 ? |
| ID | 27 mm | 1.063" or 1-1/16" |
| OD | 45.5 mm | ~ 1.791" |
| Width (Thickness) | 14.7 mm | 0.579" |
| Hub Opening | 50 mm | 2" |
Inner Bearing
https://koyo.jtekt.co.jp/en/products/detail/?pno=LM48548/10
| Specification | Details | Notes |
|---|---|---|
| Make/Model | Koyo LM48548 | |
| ID | 34.925 mm | 1.38" |
| OD | 65.088 mm | 2.56" |
| Width (Thickness) | 18.034 mm | 0.71" |
Grease Seal
| Specification | Details |
|---|---|
| Make/Model | Dexter 010-004-00 |
Replacement Parts
| Part | Picture | Description | URL |
|---|---|---|---|
| Bel-Ray Waterproof Grease |
| Bel-Ray Waterproof Grease is the legendary high-performance, multi-purpose grease. Superior water resistance, even in salt water, will ensure continued sealing and protection. Perfect for wheel bearings, headsets, shock linkages, swing arm pivots and other motorcycle, ATV, snowmobile and marine chassis lubrication points. Due to its aluminum complex formula, it won’t melt or run out. Enhanced mechanical stability and special anti-wear additives protect and lubricate bearings for improved performance. NLGI Grade 2 | https://www.amazon.ca/dp/B0045L75M6?psc=1&ref=ppx_yo2ov_dt_b_product_details |
| Trailer Hub Kit |
| iBroPrat 2 Sets Trailer Hub Kit 5 Bolt 4.5, Trailer Axle Kit for 3500 lb 5 Lug Trailer Hub with Extra Dust Cap and Rubber Plug For trailer idler hub 5 on 4-1/2" for 3,500 lbs trailer axle. Fits 1-1/16'' to 1-3/8" Trailer Axles 3500lb #84 Spindle. I will be reusing my nut and washer since my spindle end is not the same size as the kit. | https://www.amazon.ca/dp/B0BJ8ZVVD1?psc=1&ref=ppx_yo2ov_dt_b_product_details |
Packing the Bearings
I decided to buy a new hub kit since my old hub was kinda rusty and not as nice looking. The new hub kit with bearings was only $109 CA + Tax.
Start by packing grease into the inner and outer bearings
Install Inner Bearing
Install Bearing Seal
Clean and Grease Spindle
Insert Hub on Spindle and Add More Grease
Install Outer Bearing, Washer and Spindle Nut
Tighten and Loosen Nut - Tighten to seat the hub on the axle, loosen and then hand tighten the nut.
Install Cotter Pin
Add Grease Around the Nut
Add Grease to Dust Cap and Install
Pictures
References
| Reference | URL |
|---|---|
| Your boat trailer wheel bearings need regular care. Here's how the pros do it. | https://www.boatus.com/expert-advice/expert-advice-archive/2013/october/repacking-or-replacing-your-trailer-tire-bearings |
| How To Repack Trailer Wheel Bearings | https://www.youtube.com/watch?v=mVtokwZuetI |
| TRAILER HUBS AND WHEEL BEARING REPLACEMENT GUIDE | https://www.youtube.com/watch?v=YJNz5F8fRtA |
| The Boler Project - Ep 2 - How to Check the Wheel Bearings | https://www.youtube.com/watch?v=ORrfjC-qFJY&t=6s |
| Changing the Bearings Procedure | https://www.boler.ca/2018/04/17/wheel-bearings/ |
| Bearing Buddy Installation | https://www.youtube.com/watch?v=L8YLtX9rSE4 |