Based on this product's specifications, here are some alternatives and similar models
INSIZE roll/shaft holder and clamp set model 7341-13S for shaft diameters 17.88–19.30 mm
Summary description:
INSIZE model 7341-13S is a roll/shaft holder kit supplied with four pairs of clamps for secure mounting on shafts with diameters from 17.88 to 19.30 mm. The set is intended for positioning, supporting or fixing small rollers or shafts during assembly, inspection and light machining tasks. Suitable for workshops and production lines requiring repeatable, stable shaft clamping.