etrailer Trailer Bearings Races Seals Caps – Bearings – 3984 Review –
etrailer Trailer Bearings Races Seals Caps – Bearings – 3984 Review –

Today, were going to review part number 3984. This is the Redline Inner Wheel Bearing. This replacement bearing is a high quality,
tapered roller wheel bearings designed for high-speed use. All bearings have industry standard number
regardless of the brand. On this wheel, bearing you can actually see
the part number. Itll be stamped right on there, 3984.Basically,
this wheel bearing will consist of three parts. Has the inner cone, has the tapered roller
bearings and the roller bearings are actually in a cage or a roller retainer, its called. When this is installed on the spindle, it
would be lubricated with either grease, wheel bearing grease or oil.One of the most critical
measurements when replacing your wheel bearings is you do have to make sure the inner diameter,
which is this part right in here. Needs to match what you have on the trailer
right now. To get an actual measurement you would need
to use either a dial or a digital caliper like we have here because most of the time
the numbers are extended out to thousandths of an inch. In this case, when we measure the inner bearing,
it would measure 2.625.

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