SC Spacer Hub Pores

SC Spacer Hub Bores

Coupling Size	Hub Number	Max. Bore	Plain Bore	Stock Bore (Bore with Standard Keyway and Setscrew)	K	H	Cap Screws Furnished	Weight (lb)
4JSC	4H	1.125	—	0.625, 0.875, 1.000, 1.125★	1.625	2.000	4 – 10 × 2	1.1
5SC	5H	1.500	0.500	0.625, 0.750, 0.875, 1.000, 1.125	0.400	2.125	4 – 10 × 2	1.2
6SC	6H	1.375	0.625	0.750, 0.875, 1.000, 1.125, 1.250, 1.375	0.531	2.500	4 – 1/4 × 1 3/4	1.3
7SC	7H	1.625	0.750	1.000, 1.125, 1.375, 1.500, 1.625	0.625	2.813	4 – 1/4 × 2	2.2
8SC	8H	1.875	0.750	0.875, 1.000, 1.125, 1.375, 1.500, 1.625, 1.750, 1.875	1.697	3.250	4 – 5/16 × 2 1/4	3.2
9SC	9H	2.125	0.875	1.000, 1.125, 1.375, 1.500, 1.625, 1.750, 1.875, 2.125	1.993	3.625	4 – 3/8 × 2 1/4	3.7
10SC	10H	2.375	1.125	1.625, 1.875, 2.125, 2.375	2.344	4.375	4 – 7/16 × 2 1/2	5.5
11SC	11H	2.875	1.125	1.875, 2.125, 2.375, 2.875	2.897	5.250	4 – 7/16 × 3 1/2	8.2
11SC	11HS	1.875	—	1.625	2.939	5.750	4 – 1/2 × 3 1/2	8.7
12SC	12H	2.875	1.875	1.875, 2.125, 2.375, 2.875	2.939	5.750	4 – 1/2 × 3 1/2	9.1
13SC	13H	3.375	2.375	2.375, 2.875, 3.375	3.344	6.125	4 – 5/8 × 4 3/4	16.9
13SC	13HS	2.500	—	2.125, 2.375	2.469	6.125	4 – 5/8 × 4 3/4	19.6
14SC	14H	3.875	—	2.375, 2.875, 3.375, 3.875	3.818	6.500	4 – 5/8 × 5	24.2