Unlike some trailers, ours are welded together for maximum strength.
Incompatible greases can cause adverse chemical reactions, resulting in rust, pitting, scoring of metal, and breakdown of the greases ability to lubricate.Every Mod V and Deep V boat comes standard with a great-looking, long-lasting, custom-matched TRACKER® trailer. It is important to determine compatibility prior to mixing greases of different base types. Marine trailer bearing grease provides outstanding water washout and excellent corrosion protection caused by salt water. Thoroughly grease the bearings by working grease around rollers then pack the hub interior before installing a new grease seal in the back of hub.īearing grease quality and compatibility is another important consideration, especially for boat trailers that are commonly submerged in water after a long road haul. Even if the cups don't show sign of wear they should be replaced to maintain proper bearing tolerance. When rebuilding the hub body with a new bearing kit remember to replace the inner and outer races or cups.
The overall hub length is therefore shorter than most other standard boat trailer hubs. Some trailer manufacturers, such as LOADRITE & EZ-LOADER, use a ‘short hub’ on their 1” & 1-1/16” straight axles. Hub length or bearing distance should also be considered. Be sure to check both the inner and outer bearing measurements before ordering. If the number is not available, the most accurate way to measure the bearing I.D. Most bearings are stamped with a reference number that can be used to easily identify its inside diameter (see chart in our wheel bearing section). The second specification to determine is the Inner and Outer bearing size. To correctly measure the bolt circle of a hub, measure from the center of the hub to the center of a stud and multiple that measurement by two. Cargo and utility trailers with 5 lug hubs are commonly found with a 5” bolt circle. Most 4 lug hubs have a 4” bolt circle and most 5 lug boat trailer hubs have a 4-1/2” bolt circle diameter. The first specification to determine is the number of studs/bolts and the ‘bolt circle’ diameter. Whether you are replacing your entire hub or re-building the old one, it is very important to use the proper size replacement parts. Trailer Parts Superstore® carries a wide selection of high quality cast iron trailer hubs in SAE and Metric sizes.
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