SX-6 Type Hubs with Keyway - Inch (Imperial) Bores On The Timken Company

Note: SX Type Hubs are interchangeable for both the SU and SX style disc couplings (but not SXC style).

The SU Type coupling has a single flex plane, and is comprised of a single disc pack kit with two hubs. It is suitable for angular and axial misalignment only. Two SU couplings are often combined with a shaft to make a floating shaft coupling. The shaft can be hollow for long light weight floating shaft couplings.

The SX Type is the standard coupling type that includes two hubs, a stock length spacer designed to meet industry standard lengths, and two unitized disc packs. The coupling has two flex planes, one at each disc pack, allowing this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is available in 4, 6, and 8 bolt designs and bore sizes up to 13 inches (330mm) on the largest size. Custom spacer lengths can be manufactured to meet special shaft separations required for specific applications. The SX coupling can be fitted with overload bushings to protect the disc packs in over torque conditions and can act as an anti-flail device. SX couplings are assembled at the time of installation on the equipment where the coupling will be in service.

N/A 1 1/4 in

N/A 1/4 x 1/8 in

N/A No Setscrew

N/A 1.970 in50.04 mm

N/A 5100 in·lb

N/A 4.330 in110.00 mm

N/A

69790414036

N/A SX110-6-HUB-1-3/16-1/4X1/8KW

N/A 1 3/16 in

N/A 1/4 x 1/8 in

N/A No Setscrew

N/A 1.970 in50.04 mm

N/A 5100 in·lb

N/A 4.330 in110.00 mm

N/A

69790493611

N/A SX110-6-HUB-1-5/8-3/8X3/16KW

N/A 1 5/8 in

N/A 3/8 x 3/16 in

N/A No Setscrew

N/A 1.970 in50.04 mm

N/A 5100 in·lb

N/A 4.330 in110.00 mm

N/A

69790413324

N/A SX110-6-HUB-3/4-3/16X3/32KW

N/A 3/4 in

N/A 3/16 x 3/32 in

N/A No Setscrew

N/A 1.970 in50.04 mm

N/A 5100 in·lb

N/A 4.330 in110.00 mm

N/A

69790493612

N/A SX132-6-HUB-1-1/8-1/4X1/8KW

N/A 1 1/8 in

N/A 1/4 x 1/8 in

N/A No Setscrew

N/A 2.36 in59.94 mm

N/A 9700 in·lb

N/A 5.200 in132.00 mm

N/A

69790493613

N/A SX132-6-HUB-1-7/8-1/2X1/4KW

N/A 1 7/8 in

N/A 1/2 x 1/4 in

N/A No Setscrew

N/A 2.36 in59.94 mm

N/A 9700 in·lb

N/A 5.200 in132.00 mm

N/A

69790492507

N/A SX132-6-HUB-2"-1/2X1/4KW

N/A 2 in

N/A 1/2 x 1/4 in

N/A No Setscrew

N/A 2.36 in59.94 mm

N/A 9700 in·lb

N/A 5.200 in132.00 mm

N/A

69790496830

N/A SX132-6-HUB-2.1265-1/2X1/4KW-2SS90

N/A 2 1/8 in

N/A 1/2 x 1/4 in

N/A 3/8-16

N/A 2.36 in59.94 mm

N/A 9700 in·lb

N/A 5.200 in132.00 mm

N/A

69790499762

N/A SX158-6-HUB-1.990/1.991-1/2X1/4KW-SS

N/A 1.990 in

N/A 1/2 x 1/4 in

N/A 1/2-13

N/A 2.760 in70.10 mm

N/A 17700 in·lb

N/A 6.220 in158.00 mm

N/A

69790411804

N/A SX158-6-HUB-2.3765-5/8X5/16KW-2SS90

N/A 2 3/8 in

N/A 5/8 x 5/16 in

N/A 3/8-16

N/A 2.760 in70.10 mm

N/A 17700 in·lb

N/A 6.220 in158.00 mm

N/A

69790497631

N/A SX158-6-HUB-2-1/2-5/8X5/16KW

N/A 2 1/2 in

N/A 5/8 x 5/16 in

N/A No Setscrew

N/A 2.760 in70.10 mm

N/A 17700 in·lb

N/A 6.220 in158.00 mm

N/A

69790493674

N/A SX202-6-HUB-2.2515-1/2X1/4KW

N/A 2 1/4 in

N/A 1/2 x 1/4 in

N/A 3/8-16

N/A 3.540 in89.92 mm

N/A 40700 in·lb

N/A 7.950 in202.00 mm

N/A

69790413543

N/A SX202-6-HUB-2-5/8-5/8X5/16KW

N/A 2 5/8 in

N/A 5/8 x 5/16 in

N/A No Setscrew

N/A 3.540 in89.92 mm

N/A 40700 in·lb

N/A 7.950 in202.00 mm

N/A

69790411823

N/A SX202-6-HUB-3.1265-3/4X3/8KW-SS

N/A 3 1/8 in

N/A 3/4 x 3/8 in

N/A 1/2-13

N/A 3.540 in89.92 mm

N/A 40700 in·lb

N/A 7.950 in202.00 mm

N/A

69790493675

N/A SX202-6-HUB-3.3765-7/8X7/16KW

N/A 3 3/8 in

N/A 7/8 x 7/16 in

N/A 3/8-16

N/A 3.540 in89.92 mm

N/A 40700 in·lb

N/A 7.950 in202.00 mm

N/A

69790414395

N/A SX228-6-HUB-2-3/8-5/8X5/16KW

N/A 2 3/8 in

N/A 5/8 x 5/16 in

N/A No Setscrew

N/A 3.94 in100.08 mm

N/A 62000.00 in·lb

N/A 8.980 in228.00 mm

N/A

69790414396

N/A SX228-6-HUB-2-7/8-3/4X3/8KW

N/A 2 7/8 in

N/A 3/4 x 3/8 in

N/A No Setscrew

N/A 3.94 in100.08 mm

N/A 62000.00 in·lb

N/A 8.980 in228.00 mm

N/A

69790492603

N/A SX228-6-HUB-3-3/4-7/8X7/16KW

N/A 3 3/4 in

N/A 7/8 x 7/16 in

N/A No Setscrew

N/A 3.94 in100.08 mm

N/A 62000.00 in·lb

N/A 8.980 in228.00 mm

N/A

69790492602

N/A SX228-6-HUB-3-7/8-1"X1/2KW

N/A 3 7/8 in

N/A 1 x 1/2 in

N/A No Setscrew

N/A 3.94 in100.08 mm

N/A 62000.00 in·lb

N/A 8.980 in228.00 mm

N/A

69790413310

N/A SX255-6-HUB-2-3/8-5/8X5/16KW

N/A 2 3/8 in

N/A 5/8 x 5/16 in

N/A No Setscrew

N/A 4.530 in115.06 mm

N/A 90300.00 in·lb

N/A 10.040 in255.00 mm

N/A

69790499050

N/A SX278-6-HUB-3.9965-1"X1/2KW

N/A 4 in

N/A 1 x 1/2 in

N/A No Setscrew

N/A 4.920 in124.97 mm

N/A 125700.00 in·lb

N/A 10.950 in278.00 mm

N/A

69790497650

N/A SX278-6-HUB-4-1/2-1"X1/2KW

N/A 4 1/2 in

N/A 1 x 1/2 in

N/A No Setscrew

N/A 4.920 in124.97 mm

N/A 125700.00 in·lb

N/A 10.950 in278.00 mm

N/A

69790499076

N/A SX278-6-HUB-4-1/2-1"X3/8KW

N/A 4 1/2 in

N/A 1 x 3/8 in

N/A No Setscrew

N/A 4.920 in124.97 mm

N/A 125700.00 in·lb

N/A 10.950 in278.00 mm

N/A

69790413308

N/A SX278-6-HUB-4-3/8-1"X1/2KW

N/A 4 3/8 in

N/A 1 x 1/2 in

N/A No Setscrew

N/A 4.920 in124.97 mm

N/A 125700.00 in·lb

N/A 10.950 in278.00 mm

N/A

69790413795

N/A SX302-6-HUB-3-3/8-7/8X7/16KW

N/A 3 3/8 in

N/A 7/8 x 7/16 in

N/A No Setscrew

N/A 5.320 in135.13 mm

N/A 177000 in·lb

N/A 11.890 in302.00 mm

N/A

69790413682

N/A SX302-6-HUB-4-1/2-1"X1/2KW

N/A 4 1/2 in

N/A 1 x 1/2 in

N/A No Setscrew

N/A 5.320 in135.13 mm

N/A 177000 in·lb

N/A 11.890 in302.00 mm

N/A

69790413683

N/A SX302-6-HUB-5"-1-1/4X5/8KW

N/A 5 in

N/A 1 1/4 x 5/8 in

N/A No Setscrew

N/A 5.320 in135.13 mm

N/A 177000 in·lb

N/A 11.890 in302.00 mm

N/A

Part Number

Description

Bore Size

Keyway Size (W x D)

Set Screw Size

Length thru Bore

Nominal Torque

Dimension FD

CAD

No Preference
1 1/4
1 1/8
1 3/16
1 5/8
1 7/8
1.990
2 1/2
2
2 1/4
2 1/8
2 3/8
2 5/8
2 7/8
3 1/8
3 3/4
3 3/8
3 7/8
3/4
4 1/2
4 3/8
4
5

Bore Size (in)

Keyway Size (in)