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Bearing Supports

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Crankshaft front bearing support is designed to minimize the bending stress imposed on the end of the crankshaft when driving a blower.

SBC BBC Hemi

The force trying to lift the front of the crankshaft can easily be as much as 3000 pounds. The distance from the centerline of the blower belt to the front main bearing is approximately 5 inches. This translates to a bending moment of 1250 foot-pounds! Consider the #1 and #2 pistons and rods are pushing down on the other side of the front main bearing and you can see that the crankshaft needs some added help in this area.

A unique feature of a crankshaft bearing support is the hub which is machined from one-piece, heat-treated, chrome-moly steel billet. This insures the end where the ball bearing mounts will run true with the end of the crankshaft. The hub has a wall in the center for a bolt to mount it on the crank and double keyways. The front slots are used to drive another accessory like oil pumps.

 

Complete Crank Support requires the purchase of three items:
Crank Support * Crank Hub * Degree Ring
Crank SupportChevy Crank HubHemi Crank HubDegree Ring

 

Crank Supports

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Part#
Brief Description
Regular Price
Your Price!
More Info
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RCD-202200-0002 RCD CRANK SUPPORT SBC $610.46 $489.99
RCD-202200-0004 CRANK SUPPORT SBC w/ 6in STANDS AND EXT BRNG HOUSING $636.18 $499.99
RCD-202400-0002 RCD CRANK SUPPORT BBC $636.18 $499.99
RCD-202400-0004 CRANK SUPPORT BBC w/ 6in STANDS AND EXT BRNG HOUSING $655.46 $529.99
RCD-202600-0004 RCD CRANK SUPPORT HEMI w/ CRANK TRIGGER BRACKET $850.50 $699.99
RCD-202800-0002 RCD CRANK SUPPORT EARLY HEMI 392/417 $787.49 $649.99

Chevy Crank Hubs for Crank Supports

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Part#
Brief Description
Regular Price
Your Price!
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B-2046 CRANK HUB SBC INT FOR BEARING SUPPORT (3/16 & 1/4 KEYWAY) $425.00 $329.99
B-2057 CRANK HUB BBC INT FOR BEARING SUPPORT (3/16 & 1/4 KEYWAY) $425.00 $329.99
B-2058 CRANK HUB BBC INT FOR BEARING SUPPORT (1/4 KEYWAYS) $425.00 $329.99

Hemi Crank Hubs for Crank Supports

Pic
Part#
Brief Description
Regular Price
Your Price!
More Info
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RCD-202803-0020 CRANK HUB 392/417 FOR BEARING SUPPORT $504.00 $399.99
RCD-202603-0020 CRANK HUB 426 HEMI FOR BEARING SUPPORT (1/4 KEYWAYS) $472.50 $399.99
B-2066 CRANK HUB 426 HEMI FOR INTERNAL BEARING SUPPORT (1/4 KEYWAYS) $315.00 $269.99
RCD-202026-03 BEARING SUPPORT MANDREL BOLT-ON. BLOWER PATTERN $182.18 $149.65
B-2070 CRANK HUB HEMI INT BEARING SUPPORT (PSI SPLINE) $399.00 $295.00
B-2071 CRANK HUB HEMI INT BEARING SUPPORT (RCD SPLINE) $456.00 $349.00

Degree Rings

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Part#
Brief Description
Regular Price
Your Price!
More Info
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B-2032 DEGREE RING SOLID w/o MAGNETS 6 3/8in $85.00 $69.99
B-2033 DEGREE RING SOLID w/ MAGNETS 6 3/8in $130.00 $119.99
B-2034 DEGREE RING SOLID w/o MAGNETS 7in $85.00 $69.99
B-2037 DEGREE RING SOLID w/ MAGNETS 7in $130.00 $119.99
B-2038 DEGREE RING SOLID OFFSET w/ MAGNETS 7in $205.00 $179.99

Crank Support Components

Pic
Part#
Brief Description
Regular Price
Your Price!
More Info
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RCD-202025-01 ALUMINUM BEARING HOUSING -STD $104.88 $85.99
RCD-202025-02 ALUMINUM BEARING HOUSING -LONG 1.0in OFFSET $151.14 $122.99
RCD-350523-55 BEARING FOR BEARING SUPPORT $27.20 $22.99
RCD-351005-354 SNAP RING FOR BEARING SUPPORT $9.90 $8.99
RCD-202035-35 CRANK SUPPORT STAND 1.25in x 5in $61.70 $50.99
RCD-202035-40 CRANK SUPPORT STAND 1.25in x 5.5in $61.70 $50.99
RCD-202035-45 CRANK SUPPORT STAND 1.25in x 6in $63.06 $51.99

 

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