How to Measure to Determine Correct Grease Seal
Updated 03/13/2017 | Published 03/10/2017
Question:
Last year I Purchased 4 BK1-100 bearing kits, I replaced the ones which had failed , but at the time I wok=ndered about the size of the seal, it is approx. 1 316inch diameter, where the axle is 1, this means the seal can ride over the ridge on the axle. I assume I am missing something, but am uncertain what my problem is?
asked by: Nelson B
Expert Reply:
For a grease seal to fit properly it needs to have an inner diameter that matches the spindle diameter and an outer diameter that matches the hub's bore, which is where the seal installs. Please refer to the linked diagram that shows where a seal rides on the spindle, point B.
Measurements for things like bearings and seals have to be very exact, and generally require a digital caliper like # PTW80157 that can give you very precise readings, ideally to the nearest thousandth.
Once you have your spindle and hub bore dimensions you can use the linked page to select a grease seal that matches.
Product Page this Question was Asked From
4" Carbon Fiber Digital Caliper
- Hand Tools
- Measuring and Layout Tools
- Digital Calipers
- Carbon Fiber
- Performance Tool
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: bearing grease
- Shop: Easy Grease Trailer Hub and Drum Assembly for 5.2K & 6K Axles - 12" - 6 on 5-1/2 - Pre-Greased
- Shop: Dexter Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 7,000 lbs
- Shop: Replacement U-Bolt with Nuts for 1-3/4" Wide, Square Trailer Axles - 9/16" Diameter
- Video: Let’s Check Out the Rubber Window Edge Weather Strip for RVs
- Q&A: Grease Seal Fit based on Inner Diameter and Outer Diameter
- Shop: Dexter Boat Trailer Axle - 89" Long - Galvanized
- Shop: LubriMatic Multi-Purpose Lithium Grease - 3 oz. Cartridges - 3 Pack
- Shop: LubriMatic Marine Trailer Wheel Bearing Grease - 3 oz. Cartridges - Qty 3
- Shop: LubriMatic Prime Guard High Temperature Wheel Bearing Grease - Red - 16-oz Can
- Q&A: Difference Between Dexter and etrailer.com Brand 12 inch Brake Assemblies
- Q&A: How to Determine What Hubs Are Needed for Escort Boat Trailer
- Q&A: Troubleshooting a Dico 60 Hydraulic Surge Brake Actuator with Only 1 Drum Locking Up
- Q&A: Can a Hub with Outer Bearing 15123 and LM67048 Both Fit Same Spindle
- Q&A: Replacement Hub and Drum Assemblies for 2002 Escort Boat Trailer
- Video: An In-Depth Look at the CE Smith U-Bolt Kit for Boat Trailer Guide-Ons
- Video: Review of Dexter Trailer Brakes - Electric Drum Brakes Assembly Kit - 23-112-113
- Video: All You Need to Know About the Dexter Nev-R-Adjust Electric Trailer Brakes
- Video: Complete Breakdown of the Dexter Trailer Axle w/ Electric Brakes
- Video: A Closer Look at the Dexter Trailer Hub and Drum Assembly for 5,200-lb to 7,000-lb Axles
- Video: Hydraulic Trailer Brake Kit Spec Review
- Q&A: Kodiac Disc Brake Kit Compatibility with UFP DB-42 Axle
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: How to Tell the Weight Rating of a Trailer Axle
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Lighting Requirements
- Article: Replacing the Bearing, Races and Seals on a Trailer Hub
- Article: What are the Common Types of Propane Fittings Used on RVs?
- Article: Testing Trailer Brake Magnets for Proper Function
on Hand Tools
