Type Dimension(mm) d s r a≈ d1 H PM31003C 10 4.5 0.3 2.4 4.2 14 PM31003CL PM31303C 13 5.5 0.3 3.4 5.2 18.2 PM31303CL PM31603C 16 7 0.3 4.4 6.2 22.6 PM31603CL PM31905C 19 8.5 0.5 5.4 7.2 26 PM31905CL