SC Type Spacer Coupling Hubs with Keyway, Standard Length - Inch (Imperial) Bores On The Timken Company

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Specifically designed for the pump industry, this coupling accommodates industry standard as well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs

Quick Coupling Removal

The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without disturbing equipment alignment

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Keyway Size (in)

Part Number	Description	Bore Size	Hub #	Keyway Size (W x D)	Outside Diameter	Dimension L	Dimension SL

68514436593	N/A 5SCH-SPCR HUB-1"-1/4X1/8KW	N/A 1 in	N/A 5SCH	N/A 1/4 x 1/8 in	N/A 2.000 in50.80 mm	N/A 1.090 in27.69 mm	N/A 0.540 in13.72 mm
68514436594	N/A 5SCH-SPCR HUB-1-1/8-1/4X1/8KW	N/A 1 1/8 in	N/A 5SCH	N/A 1/4 x 1/8 in	N/A 2.000 in50.80 mm	N/A 1.090 in27.69 mm	N/A 0.540 in13.72 mm
68514436711	N/A 5SCH-SPCR HUB-1/2-1/8X1/16KW	N/A 1/2 in	N/A 5SCH	N/A 1/8 x 1/16 in	N/A 2.000 in50.80 mm	N/A 1.090 in27.69 mm	N/A 0.540 in13.72 mm
68514436591	N/A 5SCH-SPCR HUB-3/4-3/16X3/32KW	N/A 3/4 in	N/A 5SCH	N/A 3/16 x 3/32 in	N/A 2.000 in50.80 mm	N/A 1.090 in27.69 mm	N/A 0.540 in13.72 mm
68514436590	N/A 5SCH-SPCR HUB-5/8-3/16X3/32KW	N/A 5/8 in	N/A 5SCH	N/A 3/16 x 3/32 in	N/A 2.000 in50.80 mm	N/A 1.090 in27.69 mm	N/A 0.540 in13.72 mm
68514436592	N/A 5SCH-SPCR HUB-7/8-3/16X3/32KW	N/A 7/8 in	N/A 5SCH	N/A 3/16 x 3/32 in	N/A 2.000 in50.80 mm	N/A 1.090 in27.69 mm	N/A 0.540 in13.72 mm
68514436602	N/A 6SCH-SPCR HUB-1"-1/4X1/8KW	N/A 1 in	N/A 6SCH	N/A 1/4 x 1/8 in	N/A 2.500 in63.50 mm	N/A 1.220 in30.99 mm	N/A 0.630 in16.00 mm
68514436604	N/A 6SCH-SPCR HUB-1-1/4-1/4X1/8KW	N/A 1 1/4 in	N/A 6SCH	N/A 1/4 x 1/8 in	N/A 2.500 in63.50 mm	N/A 1.220 in30.99 mm	N/A 0.630 in16.00 mm
68514436603	N/A 6SCH-SPCR HUB-1-1/8-1/4X1/8KW	N/A 1 1/8 in	N/A 6SCH	N/A 1/4 x 1/8 in	N/A 2.500 in63.50 mm	N/A 1.220 in30.99 mm	N/A 0.630 in16.00 mm
68514476506	N/A 6SCH-SPCR HUB-15/16-1/4X1/8KW	N/A 15/16 in	N/A 6SCH	N/A 1/4 x 1/8 in	N/A 2.500 in63.50 mm	N/A 1.220 in30.99 mm	N/A 0.630 in16.00 mm
68514436600	N/A 6SCH-SPCR HUB-3/4-3/16X3/32KW	N/A 3/4 in	N/A 6SCH	N/A 3/16 x 3/32 in	N/A 2.500 in63.50 mm	N/A 1.220 in30.99 mm	N/A 0.630 in16.00 mm
68514436713	N/A 6SCH-SPCR HUB-5/8-3/16X3/32KW	N/A 5/8 in	N/A 6SCH	N/A 3/16 x 3/32 in	N/A 2.500 in63.50 mm	N/A 1.220 in30.99 mm	N/A 0.630 in16.00 mm
68514436601	N/A 6SCH-SPCR HUB-7/8-3/16X3/32KW	N/A 7/8 in	N/A 6SCH	N/A 3/16 x 3/32 in	N/A 2.500 in63.50 mm	N/A 1.220 in30.99 mm	N/A 0.630 in16.00 mm
68514436605	N/A 6SCH-SPCR HUB-1-3/8-5/16X5/32KW	N/A 1 3/8 in	N/A 6SCH	N/A 5/16 x 5/32 in	N/A 2.500 in63.50 mm	N/A 1.220 in30.99 mm	N/A 0.630 in16.00 mm
68514436613	N/A 7SCH-SPCR HUB-1"-1/4X1/8KW	N/A 1 in	N/A 7SCH	N/A 1/4 x 1/8 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436717	N/A 7SCH-SPCR HUB-1-1/4-1/4X1/8KW	N/A 1 1/4 in	N/A 7SCH	N/A 1/4 x 1/8 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436614	N/A 7SCH-SPCR HUB-1-1/8-1/4X1/8KW	N/A 1 1/8 in	N/A 7SCH	N/A 1/4 x 1/8 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436716	N/A 7SCH-SPCR HUB-3/4-3/16X3/32KW	N/A 3/4 in	N/A 7SCH	N/A 3/16 x 3/32 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436715	N/A 7SCH-SPCR HUB-5/8-3/16X3/32KW	N/A 5/8 in	N/A 7SCH	N/A 3/16 x 3/32 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436612	N/A 7SCH-SPCR HUB-7/8-3/16X3/32KW	N/A 7/8 in	N/A 7SCH	N/A 3/16 x 3/32 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436616	N/A 7SCH-SPCR HUB-1-1/2-3/8X3/16KW	N/A 1 1/2 in	N/A 7SCH	N/A 3/8 x 3/16 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436617	N/A 7SCH-SPCR HUB-1-5/8-3/8X3/16KW	N/A 1 5/8 in	N/A 7SCH	N/A 3/8 x 3/16 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436615	N/A 7SCH-SPCR HUB-1-3/8-5/16X5/32KW	N/A 1 3/8 in	N/A 7SCH	N/A 5/16 x 5/32 in	N/A 2.810 in71.37 mm	N/A 1.470 in37.34 mm	N/A 0.710 in18.03 mm
68514436631	N/A 8SCH-SPCR HUB-1-7/8-1/2X1/4KW	N/A 1 7/8 in	N/A 8SCH	N/A 1/2 x 1/4 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436625	N/A 8SCH-SPCR HUB-1"-1/4X1/8KW	N/A 1 in	N/A 8SCH	N/A 1/4 x 1/8 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436720	N/A 8SCH-SPCR HUB-1-1/4-1/4X1/8KW	N/A 1 1/4 in	N/A 8SCH	N/A 1/4 x 1/8 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436626	N/A 8SCH-SPCR HUB-1-1/8-1/4X1/8KW	N/A 1 1/8 in	N/A 8SCH	N/A 1/4 x 1/8 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436719	N/A 8SCH-SPCR HUB-3/4-3/16X3/32KW	N/A 3/4 in	N/A 8SCH	N/A 3/16 x 3/32 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436624	N/A 8SCH-SPCR HUB-7/8-3/16X3/32KW	N/A 7/8 in	N/A 8SCH	N/A 3/16 x 3/32 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436628	N/A 8SCH-SPCR HUB-1-1/2-3/8X3/16KW	N/A 1 1/2 in	N/A 8SCH	N/A 3/8 x 3/16 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436630	N/A 8SCH-SPCR HUB-1-3/4-3/8X3/16KW	N/A 1 3/4 in	N/A 8SCH	N/A 3/8 x 3/16 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436629	N/A 8SCH-SPCR HUB-1-5/8-3/8X3/16KW	N/A 1 5/8 in	N/A 8SCH	N/A 3/8 x 3/16 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436627	N/A 8SCH-SPCR HUB-1-3/8-5/16X5/32KW	N/A 1 3/8 in	N/A 8SCH	N/A 5/16 x 5/32 in	N/A 3.250 in82.55 mm	N/A 1.720 in43.69 mm	N/A 0.660 in16.76 mm
68514436646	N/A 9SCH-SPCR HUB-1-7/8-1/2X1/4KW	N/A 1 7/8 in	N/A 9SCH	N/A 1/2 x 1/4 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436724	N/A 9SCH-SPCR HUB-2"-1/2X1/4KW	N/A 2 in	N/A 9SCH	N/A 1/2 x 1/4 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436647	N/A 9SCH-SPCR HUB-2-1/8-1/2X1/4KW	N/A 2 1/8 in	N/A 9SCH	N/A 1/2 x 1/4 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436640	N/A 9SCH-SPCR HUB-1"-1/4X1/8KW	N/A 1 in	N/A 9SCH	N/A 1/4 x 1/8 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436723	N/A 9SCH-SPCR HUB-1-1/4-1/4X1/8KW	N/A 1 1/4 in	N/A 9SCH	N/A 1/4 x 1/8 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436641	N/A 9SCH-SPCR HUB-1-1/8-1/4X1/8KW	N/A 1 1/8 in	N/A 9SCH	N/A 1/4 x 1/8 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436722	N/A 9SCH-SPCR HUB-7/8-3/8X3/16KW	N/A 7/8 in	N/A 9SCH	N/A 3/16 x 3/32 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436643	N/A 9SCH-SPCR HUB-1-1/2-3/8X3/16KW	N/A 1 1/2 in	N/A 9SCH	N/A 3/8 x 3/16 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436645	N/A 9SCH-SPCR HUB-1-3/4-3/8X3/16KW	N/A 1 3/4 in	N/A 9SCH	N/A 3/8 x 3/16 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436644	N/A 9SCH-SPCR HUB-1-5/8-3/8X3/16KW	N/A 1 5/8 in	N/A 9SCH	N/A 3/8 x 3/16 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436642	N/A 9SCH-SPCR HUB-1-3/8-5/16X5/32KW	N/A 1 3/8 in	N/A 9SCH	N/A 5/16 x 5/32 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514476166	N/A 9SCH-SPCR HUB-1-1/8-1/4X1/8KW-BLK-OX	N/A 1 1/8 in	N/A 9SCH	N/A 1/4 x 1/8 in	N/A 3.630 in92.20 mm	N/A 1.970 in50.04 mm	N/A 1.170 in29.72 mm
68514436657	N/A 10SCH-SPCR HUB-1-7/8-1/2X1/4KW	N/A 1 7/8 in	N/A 10SCH	N/A 1/2 x 1/4 in	N/A 4.380 in111.25 mm	N/A 2.340 in59.44 mm	N/A 1.170 in29.72 mm
68514436731	N/A 10SCH-SPCR HUB-2"-1/2X1/4KW	N/A 2 in	N/A 10SCH	N/A 1/2 x 1/4 in	N/A 4.380 in111.25 mm	N/A 2.340 in59.44 mm	N/A 1.170 in29.72 mm
68514436732	N/A 10SCH-SPCR HUB-2-1/4-1/2X1/4KW	N/A 2 1/4 in	N/A 10SCH	N/A 1/2 x 1/4 in	N/A 4.380 in111.25 mm	N/A 2.340 in59.44 mm	N/A 1.170 in29.72 mm
68514436658	N/A 10SCH-SPCR HUB-2-1/8-1/2X1/4KW	N/A 2 1/8 in	N/A 10SCH	N/A 1/2 x 1/4 in	N/A 4.380 in111.25 mm	N/A 2.340 in59.44 mm	N/A 1.170 in29.72 mm
68514436728	N/A 10SCH-SPCR HUB-1-1/8-1/4X1/8KW	N/A 1 1/8 in	N/A 10SCH	N/A 1/4 x 1/8 in	N/A 4.380 in111.25 mm	N/A 2.340 in59.44 mm	N/A 1.170 in29.72 mm

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