Crank Hubs and Degree Rings

Our Crank Hubs are machined from heat treated chrome-moly steel billet. Each hub (except SBC) has two 1/4" keyways 180 degrees apart, six 3/8"-24 threaded holes in an evenly spaced pattern and a black oxide finish. A stepped profile is machined around the holes for weight reduction and to lock-on the degree ring.

Standard Crank Hubs
Refer to: Crank Hub Sections
for part numbers and pricing.

Standard crank hub Standard crank hub

Crank Hub, Degree Ring assembly

Splined Crank Hub
Clamps the degree ring and sprocket with one retaining nut for quick changes and maximum driving strength.

Splined crank hub & sprocket retaining nut
PN: 355095-0003            PN: 202600-0011
Sprocket Retaining Nut   Threaded 426 Titanium hub
Counter Balanced Hub
BBC Counter balanced crank hub
PN: 202403-09
BBC Counter Balanced hub

Front Bearing Support Crank Hub

PN:202203-0020 SBC Bearing support crank hub w/retaining ring
PN:202403-0020 BBC Bearing support crank hub w/retaining ring
PN:202603-0020 426 Chrysler Bearing support crank hub w/retaining ring
PN:202803-0020 392/417 Chrysler Bearing support crank hub w/retaining ring
Also see: Crank Hub Puller/Installer.

Bearing support crank hub

Degree Rings

Our degree rings are machined from 2024-T3 billet aluminum or forged blanks and anodized black, The 360 degree marks are cut after anodizing to produce highly contrasting lines. The degree rings are profiled to match the crank hubs for a positive lock and consistent orientation of the degree marks. Degree rings are available with four magnets at 90 degrees for crank trigger ignition.
PN:201010-0010 Flat lightened w/sprocket bolts & washers
PN:201020-0002 Flat lightened alcohol 7.0" dia. w/magnets
PN:201020-0003 Flat lightened nitro 7.0" dia. w/magnets
PN:201020-0004 Flat solid alcohol 7.0" dia. w/magnets
PN:201020-0005 Flat solid nitro 7.0" dia. w/magnets
PN:201020-0007 Flat solid alcohol 6.37" dia. w/magnets
PN:201020-0008 Flat solid nitro 6.37" dia. w/magnets
PN:201040-0002 Offset lightened alcohol 7.0" dia. w/magnets
PN:201040-0003 Offset lightened nitro 7.0" dia. w/magnets
PN:201040-0004 Offset solid alcohol 7.0" dia. w/magnets
PN:201040-0005 Offset solid nitro 7.0" dia. w/magnets
Degree ring offset with magnets
Degree ring flat splined with magnets
Degree Ring offset
with magnets

 

Degree Ring flat
splined with magnets