RRC Type Adapter Hubs with Rough Stock Bore On The Timken Company

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A complete RRC Type coupling is comprised of 2 RRC Hub Adapters (includes bolts), & 1 Spacer Assembly (2 RRC jaw rings, 1 collar with hardware, 1 set of SXB(NBR) cushions).

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Bore Size (in)

Hub Style

Coupling Size

Part Number	Description	Bore Size	Hub Style	Coupling Size	Length thru Bore	Outside Diameter	Max. Bore (Dimensions ID1/ID2)

68514455770	N/A RRC226-HUB ADAPTER-7/8-RSB	N/A 7/8 in	N/A 4	N/A RRC226	N/A 2.840 in72.14 mm	N/A 5.160 in131.06 mm	N/A 2.125 in54.00 mm
68514455771	N/A RRC276-HUB ADAPTER-7/8-RSB	N/A 7/8 in	N/A 4	N/A RRC276	N/A 2.470 in62.74 mm	N/A 6.18 in156.97 mm	N/A 2.875 in73 mm
68514452030	N/A RRC280-HUB ADAPTER-1-1/4-RSB	N/A 1 1/4 in	N/A 4	N/A RRC280	N/A 2.470 in62.74 mm	N/A 7.500 in190.50 mm	N/A 3.375 in86.00 mm
68514455772	N/A RRC285-HUB ADAPTER-1-1/4-RSB	N/A 1 1/4 in	N/A 4	N/A RRC285	N/A 2.870 in72.90 mm	N/A 8.500 in215.90 mm	N/A 4.125 in105.00 mm
68514455773	N/A RRC295-HUB ADAPTER-1-1/2-RSB	N/A 1 1/2 in	N/A 4	N/A RRC295	N/A 2.750 in69.85 mm	N/A 9.12 in231.65 mm	N/A 4.125 in105.00 mm
68514455774	N/A RRC2955-HUB ADAPTER-1-3/4-RSB-NKW	N/A 1 3/4 in	N/A 4	N/A RRC2955	N/A 2.750 in69.85 mm	N/A 9.12 in231.65 mm	N/A 4.125 in105.00 mm

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