Replacement Hub for Hammer Blow Hub Part HB732 on Old Trailer
Question:
I have an old trailer with a Hammer Blow brake hub Demountable Hub Like a Mobile home axle It is an HB 732. Do you know if there is a current brake hub which will interchange with it?
asked by: Rick
Expert Reply:
My online research did not turn up any direct replacement parts for the HB732 hub you referenced. However, we can help you select new replacement hubs.
The things you need to know in order to select replacement hubs are: the bolt pattern on your current hubs (and wheels); the bearing numbers from your inner and outer bearings; the grease seal number; and the axle's weight rating. For example, Dexter Hub # 84546UC3 has a 5 on 4-1/2 bolt pattern, works with inner bearing # L68149 and outer bearing # L44649 and seal # 58846, and is suited to 3500-lb axles.
The linked photo will show you typical locations of these part numbers. If part numbers are not available the next best option is to take precision measurements of your trailer spindles in the locations shown on the photo using a precision digital caliper.
You may care to refer to the linked article on bearings.
Products Referenced in This Question
Grease Seal - Double Lip - ID 1.719" / OD 2.565" - for 3,500-lb Axles
- Trailer Bearings Races Seals Caps
- Seals
- Grease Seals - Double Lip
- 1.719 Inch I.D.
- 2.565 Inch O.D.
- etrailer
more information >
Replacement Trailer Hub Bearing - L44649
- Trailer Bearings Races Seals Caps
- Bearings
- Standard Bearings
- 1.063 Inch I.D.
- Bearing L44649
- Race L44610
- 3500 lbs Axle
- etrailer
more information >
Replacement Trailer Hub Bearing - L68149
- Trailer Bearings Races Seals Caps
- Bearings
- Standard Bearings
- 1.378 Inch I.D.
- Bearing L68149
- Race L68111
- 3500 lbs Axle
- etrailer
more information >
Product Page this Question was Asked From
Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2
- Trailer Hubs and Drums
- Hub with Integrated Drum
- Standard
- L68149
- L44649
- For 3500 lbs Axles
- 5 on 4-1/2 Inch
- 13 Inch Wheel
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- Dexter
more information >
Continue Researching
- Shop: Brake Controller
- Search Results: 9030
- Shop: Rambler ST225/75R15 Radial Trailer Tire w/ 15" Vesper Black Mod Wheel - 6 on 5-1/2 - LR E
- Shop: Vehicle Tow Bar Wiring
- Shop: Rear Hanger for 3" Wide Slipper Springs - 7-11/16" Tall - 1/2" Bolt Hole
- Search Results: wheel stud
- Search Results: 30~66~1
- Search Results: tekonsha 9030 brake controller
- Search Results: acp7b
- Shop: Optronics 7-Way Trailer Harness Plug Protector
- Q&A: Is 14 Gauge Wire Too Small for Electric Trailer Brakes
- Shop: Roadmaster Brite-Lite Wiring Converter
- Shop: Trailer Axle w/ Electric Brakes - Easy Grease - 6 on 5-1/2 Bolt Pattern - 89" Long - 6,000 lbs
- Shop: Square Direct Weld Jack w/ Footplate - Drop Leg - Sidewind - 28-7/8" Lift - 7,000 lbs
- Search Results: 8x65
- Shop: Optronics LED Trailer Clearance or Side Marker Light - Submersible - 6 Diodes - Amber Lens - 12V
- Search Results: rs16933rh
- Q&A: Troubleshooting Factory Trailer Brake Controller On 2011 Ford F-150 Only Working on Manual Override
- Q&A: Replacement Parts for Dexter Motorhome Axle 8-133
- Q&A: Replacement Hub and Drum for a Dexter 8-133
- Shop: RV Interior Lighting
- Q&A: What is the Maximum Amperage Draw of Trailer Brake Magnets on a Tandem Trailer with Four Brake Drums
- Q&A: Can Optronics Thinline LED Utility Light # UCL59CB Be Used as Backup Light on Trailer
- Video: Dexstar Tires and Wheels - Wheel Only - AM20514 Review
- Article: Wiring Trailer Lights with a 5-Way Plug (It's Easier Than You Think)
- Article: Trailer Wiring Diagrams
- Q&A: How Does a Hammer Blow Trailer Coupler Work and Function
- Article: Trailer Tire Sizing
- Video: Dexter Axle Trailer Axles - Leaf Spring Suspension - 20545I-EZ-72-10 Review
- Article: Where to Position the Trailer Axle?