Size :

1008  |  1108  |  1210  |  1610  |  1615  |  2012  |  2517  |  3020  |  3030  |  3525  |  3535  |  4030  |  4040  |  4535  |   4545   |  5040   |  5050

The Taper-Lock bushing size is defined by 4 digits representing two numbers. The first two digits represent the maximum bore size(inches) and the second two digits represent the bushing length(inches).  Example 1008, maximum bore 1.0 inch, 0.8 inch of bush length.

Power Transmission Products in Penang Malaysia | Motrade

Metric Taper Bushes – 9mm up to 200mm Shaft Diameters (challengept.com)