C Type Hubs with Keyway - Inch (Imperial) Bores On The Timken Company

Part Number	Description	Bore Size	Coupling	Thread (Dimension T)	Keyway Size (W x D)	Length thru Bore	Outside Diameter	CAD
68514446755	N/A C276-HUB-2-5/8-5/8X5/16KW	N/A 2 5/8 in	N/A C276	N/A 1/2-13	N/A 5/8 x 5/16 in	N/A 3.120 in79.25 mm	N/A 6.180 in156.97 mm	N/A
68514426064	N/A C276-HUB-2-7/8-3/4X3/8KW	N/A 2 7/8 in	N/A C276	N/A 1/2-13	N/A 3/4 x 3/8 in	N/A 3.120 in79.25 mm	N/A 6.180 in156.97 mm	N/A
68514469558	N/A C280-HUB-1-1/2-3/8X3/16KW	N/A 1 1/2 in	N/A C280	N/A 1/2-13	N/A 3/8 x 3/16 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514448988	N/A C280-HUB-1-1/4-1/4X1/8WKW	N/A 1 1/4 in	N/A C280	N/A 1/2-13	N/A 1/4 x 1/8 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514444011	N/A C280-HUB-1-3/4-3/8X3/16KW	N/A 1 3/4 in	N/A C280	N/A 1/2-13	N/A 3/8 x 3/16 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514469621	N/A C280-HUB-1-3/8-5/16X5/32KW	N/A 1 3/8 in	N/A C280	N/A 1/2-13	N/A 5/16 x 5/32 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514446194	N/A C280-HUB-1-5/8-3/8X3/16KW	N/A 1 5/8 in	N/A C280	N/A 1/2-13	N/A 3/8 x 3/16 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514444012	N/A C280-HUB-1-7/8-1/2X1/4KW	N/A 1 7/8 in	N/A C280	N/A 1/2-13	N/A 1/2 x 1/4 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514448194	N/A C280-HUB-2"-1/2X1/4KW	N/A 2 in	N/A C280	N/A 1/2-13	N/A 1/2 x 1/4 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514451998	N/A C280-HUB-2-1/2-5/8X5/16KW	N/A 2 1/2 in	N/A C280	N/A 1/2-13	N/A 5/8 x 5/16 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514444370	N/A C280-HUB-2-1/8-1/2X1/4KW	N/A 2 1/8 in	N/A C280	N/A 1/2-13	N/A 1/2 x 1/4 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514444014	N/A C280-HUB-2-3/8-5/8X5/16KW	N/A 2 3/8 in	N/A C280	N/A 1/2-13	N/A 5/8 x 5/16 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514444013	N/A C280-HUB-2-5/8-5/8X5/16KW	N/A 2 5/8 in	N/A C280	N/A 1/2-13	N/A 5/8 x 5/16 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514451525	N/A C280-HUB-2-7/8-3/4X3/8KW	N/A 2 7/8 in	N/A C280	N/A 1/2-13	N/A 3/4 x 3/8 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514448193	N/A C280-HUB-3"-3/4X3/8KW	N/A 3 in	N/A C280	N/A 1/2-13	N/A 3/4 x 3/8 in	N/A 3.120 in79.25 mm	N/A 7.500 in190.50 mm	N/A
68514448366	N/A C285-HUB-1-1/2-3/8X3/16KW	N/A 1 1/2 in	N/A C285	N/A 5/8-11	N/A 3/8 x 3/16 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514447173	N/A C285-HUB-1-1/4-1/4X1/8KW	N/A 1 1/4 in	N/A C285	N/A 5/8-11	N/A 1/4 x 1/8 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514452311	N/A C285-HUB-1-3/4-3/8X3/16KW	N/A 1 3/4 in	N/A C285	N/A 5/8-11	N/A 3/8 x 3/16 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514455546	N/A C285-HUB-1-3/8-5/16X5/32KW	N/A 1 3/8 in	N/A C285	N/A 5/8-11	N/A 5/16 x 5/32 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514441892	N/A C285-HUB-1-5/8-3/8X3/16KW	N/A 1 5/8 in	N/A C285	N/A 5/8-11	N/A 3/8 x 3/16 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514451533	N/A C285-HUB-1-7/8-1/2X1/4KW	N/A 1 7/8 in	N/A C285	N/A 5/8-11	N/A 1/2 x 1/4 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514456779	N/A C285-HUB-2-1/2-5/8X5/16KW	N/A 2 1/2 in	N/A C285	N/A 5/8-11	N/A 5/8 x 5/16 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514449809	N/A C285-HUB-2-1/8-1/2X1/4KW	N/A 2 1/8 in	N/A C285	N/A 5/8-11	N/A 1/2 x 1/4 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514447288	N/A C285-HUB-2-3/8-5/8X5/16KW	N/A 2 3/8 in	N/A C285	N/A 5/8-11	N/A 5/8 x 5/16 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A
68514449456	N/A C285-HUB-2-7/8-3/4X3/8KW	N/A 2 7/8 in	N/A C285	N/A 5/8-11	N/A 3/4 x 3/8 in	N/A 3.75 in95.25 mm	N/A 8.500 in215.90 mm	N/A

68514446755

N/A C276-HUB-2-5/8-5/8X5/16KW

N/A 2 5/8 in

N/A C276

N/A 1/2-13

N/A 5/8 x 5/16 in

N/A 3.120 in79.25 mm

N/A 6.180 in156.97 mm

N/A

68514426064

N/A C276-HUB-2-7/8-3/4X3/8KW

N/A 2 7/8 in

N/A C276

N/A 1/2-13

N/A 3/4 x 3/8 in

N/A 3.120 in79.25 mm

N/A 6.180 in156.97 mm

N/A

68514469558

N/A C280-HUB-1-1/2-3/8X3/16KW

N/A 1 1/2 in

N/A C280

N/A 1/2-13

N/A 3/8 x 3/16 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514448988

N/A C280-HUB-1-1/4-1/4X1/8WKW

N/A 1 1/4 in

N/A C280

N/A 1/2-13

N/A 1/4 x 1/8 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514444011

N/A C280-HUB-1-3/4-3/8X3/16KW

N/A 1 3/4 in

N/A C280

N/A 1/2-13

N/A 3/8 x 3/16 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514469621

N/A C280-HUB-1-3/8-5/16X5/32KW

N/A 1 3/8 in

N/A C280

N/A 1/2-13

N/A 5/16 x 5/32 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514446194

N/A C280-HUB-1-5/8-3/8X3/16KW

N/A 1 5/8 in

N/A C280

N/A 1/2-13

N/A 3/8 x 3/16 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514444012

N/A C280-HUB-1-7/8-1/2X1/4KW

N/A 1 7/8 in

N/A C280

N/A 1/2-13

N/A 1/2 x 1/4 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514448194

N/A C280-HUB-2"-1/2X1/4KW

N/A 2 in

N/A C280

N/A 1/2-13

N/A 1/2 x 1/4 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514451998

N/A C280-HUB-2-1/2-5/8X5/16KW

N/A 2 1/2 in

N/A C280

N/A 1/2-13

N/A 5/8 x 5/16 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514444370

N/A C280-HUB-2-1/8-1/2X1/4KW

N/A 2 1/8 in

N/A C280

N/A 1/2-13

N/A 1/2 x 1/4 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514444014

N/A C280-HUB-2-3/8-5/8X5/16KW

N/A 2 3/8 in

N/A C280

N/A 1/2-13

N/A 5/8 x 5/16 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514444013

N/A C280-HUB-2-5/8-5/8X5/16KW

N/A 2 5/8 in

N/A C280

N/A 1/2-13

N/A 5/8 x 5/16 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514451525

N/A C280-HUB-2-7/8-3/4X3/8KW

N/A 2 7/8 in

N/A C280

N/A 1/2-13

N/A 3/4 x 3/8 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514448193

N/A C280-HUB-3"-3/4X3/8KW

N/A 3 in

N/A C280

N/A 1/2-13

N/A 3/4 x 3/8 in

N/A 3.120 in79.25 mm

N/A 7.500 in190.50 mm

N/A

68514448366

N/A C285-HUB-1-1/2-3/8X3/16KW

N/A 1 1/2 in

N/A C285

N/A 5/8-11

N/A 3/8 x 3/16 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514447173

N/A C285-HUB-1-1/4-1/4X1/8KW

N/A 1 1/4 in

N/A C285

N/A 5/8-11

N/A 1/4 x 1/8 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514452311

N/A C285-HUB-1-3/4-3/8X3/16KW

N/A 1 3/4 in

N/A C285

N/A 5/8-11

N/A 3/8 x 3/16 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514455546

N/A C285-HUB-1-3/8-5/16X5/32KW

N/A 1 3/8 in

N/A C285

N/A 5/8-11

N/A 5/16 x 5/32 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514441892

N/A C285-HUB-1-5/8-3/8X3/16KW

N/A 1 5/8 in

N/A C285

N/A 5/8-11

N/A 3/8 x 3/16 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514451533

N/A C285-HUB-1-7/8-1/2X1/4KW

N/A 1 7/8 in

N/A C285

N/A 5/8-11

N/A 1/2 x 1/4 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514456779

N/A C285-HUB-2-1/2-5/8X5/16KW

N/A 2 1/2 in

N/A C285

N/A 5/8-11

N/A 5/8 x 5/16 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514449809

N/A C285-HUB-2-1/8-1/2X1/4KW

N/A 2 1/8 in

N/A C285

N/A 5/8-11

N/A 1/2 x 1/4 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514447288

N/A C285-HUB-2-3/8-5/8X5/16KW

N/A 2 3/8 in

N/A C285

N/A 5/8-11

N/A 5/8 x 5/16 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

68514449456

N/A C285-HUB-2-7/8-3/4X3/8KW

N/A 2 7/8 in

N/A C285

N/A 5/8-11

N/A 3/4 x 3/8 in

N/A 3.75 in95.25 mm

N/A 8.500 in215.90 mm

N/A

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No Preference
1 1/2
1 1/4
1 1/8
1 3/4
1 3/8
1 5/8
1 7/16
1 7/8
2
2 1/2
2 1/4
2 1/8
2 3/8
2 5/8
2 7/8
3
3 1/2
3 3/4
3 3/8
3 5/8
3 7/8
4

Bore Size (in)

Coupling

Keyway Size (in)