Do Bearings Have a Speed Rating
Question:
I think I have this size bearing on the axles of a 1973 camper I bought, i am not positive for I am not home and cant measure it right now, I was able to get replacement bearings at a parts store, the old ones are not damaged, just need to be cleaned and repacked, I know the spindle on the outer edge is smaller than 1 inch, the inner bearing is a standard 3500 ib bearing, is the outer bearing cable of with standing high speeds? Max 70 mph?
asked by: Martin S
Expert Reply:
If you have a standard 3,500 lb axle and the spindle is about an inch in diameter then the correct inner and outer bearings for you are # L44643 which have a 1" inner diameter exactly. This can be found in the kit # BK1-100. If your spindle is smaller than an inch then you probably have a smaller spindle that is not standard (which would make sense on an older trailer).
When choosing replacement bearings, it is always important to measure the spindle where the bearings ride to the 3rd decimal place (example 1.234) with a digital caliper like part # PTW80157.
With that being said, bearings don't have a speed rating. As long as you keep them well-greased and you don't exceed the speed rating of your tires you don't have to worry about the bearings (granted they are in good condition).
Products Referenced in This Question
Bearing Kit for 1" BT8 Spindle, L44643 Inner/Outer Bearings, 34823 Seal
- Trailer Bearings Races Seals Caps
- Bearings
- Standard Bearings
- Bearing Kits
- Bearing L44643
- Race L44610
- 2000 lbs Axle
- 2500 lbs Axle
- etrailer
more information >
4" Carbon Fiber Digital Caliper
- Hand Tools
- Measuring and Layout Tools
- Digital Calipers
- Carbon Fiber
- Performance Tool
more information >
Product Page this Question was Asked From
Replacement Trailer Hub Bearing - L44643
- Trailer Bearings Races Seals Caps
- Bearings
- Standard Bearings
- 1.000 Inch I.D.
- Bearing L44643
- Race L44610
- 2000 lbs Axle
- etrailer
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Article: Trailer Tire Sizing
- Search Results: 2157514
- Search Results: 14 inch trailer wheels
- Shop: Lionshead Trailer Wheel Lug Nut - 1/2"-20 - Stainless Steel - Qty 1
- Shop: Karrier ST205/75R15 Radial Trailer Tire with 15" Aluminum Wheel - 5 on 4-1/2 - Load Range C
- Shop: Karrier ST205/75R14 Radial Trailer Tire with 14" Aluminum Wheel - 5 on 4-1/2 - Load Range C
- Shop: Bottom Support Plate for 2-1/4" OD A-Frame Jacks - 5,000 lbs
- Video: DeeZee Trailer Toolbox - A-Frame Trailer Toolbox - DZ91717P Review
- Search Results: spare tire carrier
- Video: Review of Kenda Trailer Tires and Wheels - Karrier ST215/75R14 LR C Radial 14 Inch Wheel - KE77JR
- Video: Dutton-Lainson Offset Trailer Spare Tire Carrier Review and Installation
- Shop: Offset Trailer Spare Tire Mount by Dutton-Lainson
- Shop: Karrier ST215/75R14 Radial Trailer Tire with 14" Aluminum Wheel - 5 on 4-1/2 - Load Range C
- Shop: CE Smith Offset Spare Tire Mount - Galvanized Steel - 4- and 5-Lug Wheels
- Search Results: trailer tires and wheels
- Search Results: 2057514
- Search Results: 205 75 15
- Video: Review of Dexter Axle Trailer Axle Parts - Torflex #11 Axle Side-Mount Frame Hardware Kit - DX57FR
- Video: Review of Dexter Axle Trailer Axles Parts - Torflex Axle Installation Hardware Kit - DX54FR
- Search Results: curt sway control
- Video: Curt Weight Distribution - Sway Control Only - 17200 Review
- Q&A: Size of Install Bolts that Come with Curt Hitch 13571
- Shop: RV Covers
- Q&A: Scissor Jack Solution For Mounting to Welded Plate at Bottom of Trailer
- Video: RC Manufacturing Trailer Toolbox - A-Frame Trailer Toolbox - 350975 Review
- Q&A: Bolts Needed for Curt Round A-Frame Trailer Jack
- Q&A: Size of Bolt Needed for A-Frame Jacks
- Q&A: Required Bolt Length for Installing A-Frame Trailer Jack
- Q&A: Will Honda Generator Fit In DeeZee Trailer Tongue Toolbox
- Shop: Trailer Hitch
on Trailer Bearings Races Seals Caps
