The Timken Company - Fafnir® Four-Bolt Flanged Mounted Bearings Eccentric Locking Collar

Smarter Bearing Selection Is Here

The Timken ^® Syber ^® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.

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Analyze Bearing Performance in an Application with Timken ^® Syber ^® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

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Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

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Unit of Measure

Items	RCJ 1/2 Fafnir® Four-Bolt Flanged Mounted Bearings Eccentric Locking Collar	VCJ 1/2 Fafnir® Four-Bolt Flanged Mounted Bearings Eccentric Locking Collar	GVFDR 1/2 Fafnir® Four-Bolt Flanged Mounted Bearings Eccentric Locking Collar	GRFDR 1/2 Fafnir® Four-Bolt Flanged Mounted Bearings Eccentric Locking Collar	VFDR 1/2 Fafnir® Four-Bolt Flanged Mounted Bearings Eccentric Locking Collar
Series	N/A Industrial	N/A Standard	N/A Medium-Duty	N/A Medium-Duty	N/A Medium-Duty
Shaft Size d	N/A 1/2 in
Bearing Number	N/A G1008KRRB	N/A GRA008RRB	N/A GRA008RRB	N/A G1008KRRB	N/A GRA008RRB
Total Length L	N/A 76.2 mm3 in	N/A 76.2 mm3 in	N/A	N/A	N/A
Total Length H	N/A	N/A	N/A 81 mm3.188 in	N/A 81 mm3.188 in	N/A 81 mm3.188 in
Housing Width A	N/A 23.6 mm0.929 in	N/A 23.6 mm0.929 in	N/A 17.5 mm0.688 in	N/A 17.5 mm0.688 in	N/A 17.5 mm0.688 in
Flange Thickness A1	N/A 9.5 mm0.374 in	N/A 10.3 mm0.406 in	N/A 9.5 mm0.375 in	N/A 9.5 mm0.375 in	N/A 9.5 mm0.375 in
Bolt Hole Spacing	N/A 54 mm2.126 in	N/A 53.98 mm2.125 in	N/A 63.5 mm2.5 in	N/A 63.5 mm2.5 in	N/A 63.5 mm2.5 in
Bolt Hole Size N	N/A 10 mm0.394 in	N/A 10 mm0.394 in	N/A 7.1 mm0.281 in	N/A 7.1 mm0.281 in	N/A 7.1 mm0.281 in
Center of Bearing from Housing End A2	N/A 17.2 mm0.677 in	N/A 17.1 mm0.673 in	N/A	N/A	N/A
Dimension K	N/A	N/A	N/A	N/A 4.4 mm0.172 in	N/A
Dimension B1	N/A 37.3 mm1.469 in	N/A 28.6 mm1.126 in	N/A 28.6 mm1.126 in	N/A 37.3 mm1.469 in	N/A 28.6 mm1.126 in
Dimension S1	N/A 23.4 mm0.921 in	N/A 22.1 mm0.87 in	N/A 22.1 mm0.87 in	N/A 23.4 mm0.921 in	N/A 22.1 mm0.87 in
Dimension D	N/A 52.4 mm2.063 in	N/A 52.4 mm2.063 in	N/A	N/A	N/A
Dimension E	N/A 40.6 mm1.598 in	N/A 39.3 mm1.547 in	N/A 31.8 mm1.25 in	N/A	N/A 31.8 mm1.25 in
Dimension d1	N/A 28.6 mm1.126 in
Bolt Size	N/A M10	N/A M10	N/A M12	N/A M12	N/A M12
Static Load Rating	N/A 4700 N1070 lbf
Dynamic Load Rating	N/A 10700 N2380 lbf
Seal Type	N/A Shroud Seal	N/A Molded Shroud	N/A	N/A	N/A
Housing Construction	N/A Four-Bolt Square Flange
Weight	N/A 0.526 Kg1.160 lb	N/A 0.527 Kg1.160 lb	N/A 2.63 Kg0.58 lb	N/A 0.259 Kg0.57 lb	N/A 2.63 Kg0.58 lb
Alternate Part Name	N/A RCJ 1/2	N/A VCJ 1/2	N/A GVFDR 1/2	N/A GRFDR 1/2	N/A VFDR 1/2