Archive for the ‘Unit Bearings’ Category

Ultimate Unit Bearings w/ Trophy Truck Pattern

January 23rd2015

Spidertrax Ultimate Unit Bearing (6 on 6-1/2" x 5/8" Studs x 35 Spline)

When we set out to build the ultimate line of Ultimate Unit Bearings, offering a variety of wheel bolt patterns was on the top of that list. Continuing with that goal in mind, we are excited to add a 6 on 6-1/2″ bolt pattern option to the family. Complete with 5/8″ wheel studs, and available in both 35 & 40 splined options, this new Trophy Truck inspired Ultimate Unit Bearing could easily be one of the most popular we see in Ultra4 racing.

35 spline option available HERE.

40 spline option available HERE.

Happy Friday!

New 40 splined Ultimate Unit Bearings.

December 9th2014


Our 40 splined Ultimate Unit Bearings just got better, with the welcoming of 2 new wheel bolt patterns. In addition to 6 on 5-1/2″ pattern, 40 splined Ultimate Unit Bearings are now available in 8 on 6-1/2″ and 5 on 5-1/2″ bolt patterns. As of this post, these new options are currently out of stock (thanks KOH), but they are rolling fast and in time for anyone after that perfect 2015 King of the Hammers upgrade. Online ordering available as always, head over to The Spidertrax Store for full details, .

An Ultimate Unit Bearing for every occasion.

June 3rd2014

An Ultimate Unit Bearing for every occasion.Spidertrax | Thom Kingston | CC BY 3.0

When we set out to build the markets strongest off-road unit bearing, little did we know just how much impact our creation would have. We’ve seen our Ultimate Unit Bearings pop up in just about every application you could think of including one of our latest finds, a back-flipping Mini Cooper ). Time to add-in another unique installment, custom one-off Wide 5 edition Ultimate Unit Bearings. Complete with a massive Wide 5 bolt pattern and integrated rear mounted brake hat register, these in-house designed & manufactured Ultimate Unit Bearings will certainly grab anyones attention. Have a unique bolt pattern you’re after, send us an email and let us know. We’d love to help out!

The All New 40 Spline Ultimate Unit Bearing

March 24th2014

The All New 40 Spline Unit Bearing

Say hello to the all new 40 Spline Ultimate Unit Bearing. Same proven design as our existing 35 splined Ultimate Unit Bearings, but now with a 40 spline axle shaft option. Yes, it’s a big deal.

Learn more about the new 40 Spline Ultimate Unit Bearing at .

Ultimate Unit Bearings, Side A.

March 7th2013

Ultimate Unit Bearings, Side ASpidertrax | Thom Kingston | CC BY 3.0

Among a number of products being manufactured today, we have Side A in progress for our Ultimate Unit Bearings. These are machined out of a solid piece of domestic grade chromoly steel with multiple CNC operations, heat treatment, and post heat-treat machining for those extra precise surfaces. Yes, a lot goes into this part.