You searched for "parallel bore"
RS PRO
RS PRO EPDM Gasket, 22mm Bore, 47.5mm Outer Diameter
Part: 268-3086
EPDM rubber gasket for sealing pumps, compressors and industrial equipment connections.
RS PRO
RS PRO Compressed Fiber Gasket, 22mm Bore, 47.5mm Outer Diameter
Part: 268-3072
Heat-resistant fiber gasket for high-temperature pipe and flange sealing.
RS PRO
RS PRO Taper Bush 1210, 20mm Shaft Diameter
Part: 182-931
Tapered bush for secure 20mm shaft mounting in machinery.