Unit Bearings

Built ground up for Ultra4 rock racers, the Spidertrax Ultimate Unit Bearing is truly the reinvention of the unit bearing itself. Genuine Timken bearings, full chromoly heat treated construction, and a fully integrated drive slug makes the Ultimate Unit Bearing the only racing unit bearing of its kind. The Ultimate Unit Bearing, the last bearing you'll ever need.

This Ultimate Unit Bearing uses 5/8" (15.9mm)-18 studs on a 6 on 5 1/2" (139.7mm) bolt circle, designed specifically for Spidertrax 35 splined axle shafts.

This stud pattern is widely used and is the same as Nissan Y60 and Y61. However, please note this Unit Bearing comes with 5/8" (15.9mm) UNF studs.

Built ground up for Ultra4 rock racers, the Spidertrax Ultimate Unit Bearing is truly the reinvention of the unit bearing itself. Genuine Timken bearings, full chromoly heat treated construction, and a fully integrated drive slug makes the Ultimate Unit Bearing the only racing unit bearing of its kind. The Ultimate Unit Bearing, the last bearing you'll ever need.

This Ultimate Unit Bearing uses 5/8" (15.9mm)-18 studs on a 6 on 6 1/2" (165.1mm) bolt circle, designed specifically for Spidertrax 35 splined axle shafts.

Built ground up for Ultra4 rock racers, the Spidertrax Ultimate Unit Bearing is truly the reinvention of the unit bearing itself. Genuine Timken bearings, full chromoly heat treated construction, and a fully integrated drive slug makes the Ultimate Unit Bearing the only racing unit bearing of its kind. The Ultimate Unit Bearing, the last bearing you'll ever need.

This Ultimate Unit Bearing uses 5/8" (15.9mm)-18 studs on a 6 on 5 1/2" (139.7mm) bolt circle, designed specifically for Spidertrax 40 splined axle shafts.

This stud pattern is widely used and is the same as Nissan Y60 and Y61. However, please note this Unit Bearing comes with 5/8" (15.9mm) UNF studs.

Built ground up for Ultra4 rock racers, the Spidertrax Ultimate Unit Bearing is truly the reinvention of the unit bearing itself. Genuine Timken bearings, full chromoly heat treated construction, and a fully integrated drive slug makes the Ultimate Unit Bearing the only racing unit bearing of its kind. The Ultimate Unit Bearing, the last bearing you'll ever need.

This Ultimate Unit Bearing uses 5/8", (15.9mm)-18 studs on a 6 on 6 1/2" (165.1mm) bolt circle, designed specifically for Spidertrax 40 splined axle shafts.

Make your pit crew, and back, happy with the Spidertrax Drive Snout. Designed to bolt-on to Spidertrax Ultimate Unit Bearings, this drive snout allows for easier tire changes by giving that wheel & tire a place to rest during install. Perfect for go-fast racing events where the speed of a tire change matters.

This Drive Snout is designed for six and eight lug applications. Drive Cover sold separately.

While your pit crew, and back, are happy with the Spidertrax Drive Snout, this Drive Cover completes the assembly for rear axles. Not only will this Drive Cover keep your rear axle shafts where they belong, but our unique 2-piece design allows for quick access to those same shafts. Just four bolts like our standard covers and axle shafts can be pulled, inspected, and installed. This Drive Cover also comes with an upgraded o-ring design, perfect when running gear oil out to the Ultimate Unit Bearing.

This Drive Cover is designed to bolt-on to Spidertrax Drive Snouts. Drive Snout sold separately.

While Ultimate Unit Bearings seem to last forever, at some point in their lifetime servicing the bearings will be necessary. When that time comes, you can now service your own bearings with this genuine Timken bearing pack.

With a bearing puller, our 2¼ (6.4mm) Spindle Socket, and a little patience simply pull off your old bearing pack and install this new bearing pack in its place. All bearing packs are pre-greased and internally spaced, so outside of checking spindle nut torque at 250 ft-lb (min), theres nothing special to it.

Note: These Bearing Packs require specialist tools to fit. If you do not have the tools, Gigglepin offer a fitting and re-build service for all Ultimate and Pro bearings. Please contact the shop for more details.

This one-piece billet socket is designed to fit Ultimate Unit Bearing & Pro Series Compact Unit Bearing retaining nuts.

Proudly made in the USA.

Built ground up for desert and rock racers alike, the Spidertrax Pro Series Unit Bearing offers an entirely new level in wheel bearing technology. Massive 3.7" (94mm) ID Timken bearings, full chromoly heat treated construction, chromoly heat treated press-in shouldered studs, and a fully integrated drive slug makes the Pro Series Unit Bearing the only racing unit bearing of its kind. The Pro Series Unit Bearing, taking racing to the next level. This Pro Series Unit Bearing uses 5/8" (15.9mm)-18 press-in shouldered studs on a 6 on 6 1/2" (165.1mm) bolt circle, designed specifically for Spidertrax 45 splined IFS and full floater axle shafts. Drive snout and cover sold separately.