How To Determine Axle Capacity of Trailer with 4 Lug Hubs with Brakes
Published 01/08/2020 >
Products Featured in This Question
Question:
This an older 4 lug axle with i believe are brakes, how do I find the weight capacity for it ?
asked by: William B
Expert Reply:
The only way to know for sure is to check your bearings. That being said, the most common 4-bolt configuration is a 4 on 4 bolt pattern, which are typically found on 2,000 lb to 2,700 lb trailer axles. The only 4 on 4 bolt pattern hub and drum assemblies we carry are for 2,200 lb axles and use # L44649 inner/outer bearings. See below.
Compatible with 7 inch x 1-1/4 inch electric and hydraulic brakes
# 8-173-16UC3 - Includes bearings, races, grease seal, standard grease cap and lug nuts.
# 8-173-16UC3-EZ - Includes bearings, races, grease seal, E-Z Lube grease cap and lug nuts.
Compatible with 7 inch x 1-3/4 inch hydraulic brakes
# 8-276-5UC3 - Includes bearings, races, grease seal, standard grease cap and lug nuts.
# 8-276-5 - Includes races. Bearings, grease seal, grease cap and lug nuts sold separately.
You can either look for the bearing number stamped on the bearing itself, or use a caliper like # PTW80157 to measure the diameter of the spindle where the bearings ride. A spindle that uses L44649 will measure 1.06 inches.
I've attached a couple helpful articles for you to check out at the bottom of the page as well.
Product Page this Question was Asked From
Dexter Trailer Idler Hub Assembly for 6,000-lb Axles - 6 on 5-1/2
- Trailer Hubs and Drums
- Idler Hub
- Standard
- 25580 / 15123
- Standard Grade
- For 6000 lbs Axles
- 1/2 Inch Stud
- 6 on 5-1/2 Inch
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- 17 Inch Wheel
- 17-1/2 Inch Wheel
- 18 Inch Wheel
- 18-1/2 Inch Wheel
- Dexter
more information >
Featured Help Information
Miscellaneous Media






Continue Researching
- Search Results: trailer hubs and drums
- Search Results: st145r12d
- Search Results: trailer spindles
- Search Results: trailer hubs and drums accessories and parts
- Search Results: trailer tires and wheels
- Search Results: idler hubs trailer axles
- Search Results: 1/2 inch stud trailer hubs and drums
- Video: Dexter Trailer Hub and Drum Assembly for Hydraulic Brakes Spec Review
- Shop: Trailer Idler Hub Assembly for 2K Axles - 10" to 12" Wheels - 5 on 4-1/2 - Pre-Greased
- Shop: Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - Galvanized
- Shop: Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - Galvanized
- Shop: Kenda Karrier S-Trail ST145/R12 Radial Tire w/ 12" White Spoke Wheel - 5 on 4-1/2 - LR D
- Shop: Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - Galvanized
- Shop: Dexter Trailer Hub and Drum Assembly for Hydraulic Brakes - 2,200-lb Axles - 4 on 4
- Shop: Dexter Hydraulic Trailer Brakes - Uni-Servo - 7" - Left/Right - 2.5K
- Q&A: Can 15 inch Wheels be Used with a 2,000-lb Trailer Axle
- Q&A: Determining Correct Tire and Wheel Size for Trailer with 2,000 Pound Axle
- Q&A: How to Choose Correct Replacement Trailer Hub with 5 on 4-1/2 Inch Bolt Pattern
- Video: An In-Depth Look at the Kenda ST235/75R15 Radial Off-Road Trailer Tire
- Q&A: Correct Replacement Brakes and Hub/Drum Assembly for '97 Jayco Popup
- Q&A: What is the Replacement Wheel Hub Needed on the Axle of a 1996 Jayco 1207 Popup Trailer
- Q&A: Replacement Axle, Hubs and Wheels for 1997 Jayco Pop-Up Camper 8SD
- Q&A: Replacement 7" Hydraulic Drum Brake Assembly For an Obsolete Atwood Drum Brake
- Shop: RV Power Cord
- Shop: RV Electrical
- Video: Complete Breakdown of the Loadstar K399 Bias Trailer Tire
- Video: Feature Review Torque Multiplier Lug Nut Tool with Extension Bar and Handle
- Video: Feature Breakdown: Kenda 205/65-10 Bias Trailer Tire with 10" White Wheel



