Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
NK25/16R	28mm mm	37mm mm	20mm mm	-	-	-	-
NK25/20R	25mm mm	33mm mm	20mm mm	-	-	-	-
NK26/16R	26mm mm	34mm mm	16mm mm	-	-	-	-
NK26/16R+IR22×26×16	22mm mm	34mm mm	16mm mm	-	-	-	-
NK26/16R+IR22×26×20	22mm mm	34mm mm	20mm mm	-	-	-	-
NK26/20R	26mm mm	34mm mm	20mm mm	-	-	-	-
NK28/20R	28mm mm	37mm mm	20mm mm	-	-	-	-
NK28/30R	28mm mm	37mm mm	30mm mm	-	-	-	-
NK29/20R	29mm mm	38mm mm	20mm mm	-	-	-	-
NK29/20R+IR25×29×20	25mm mm	38mm mm	20mm mm	-	-	-	-
NK29/30R	29mm mm	38mm mm	30mm mm	-	-	-	-
NK29/30R+IR25×29×30	25mm mm	38mm mm	30mm mm	-	-	-	-
NK30/20R	30mm mm	40mm mm	20mm mm	-	-	-	-
NK30/30R	30mm mm	40mm mm	30mm mm	-	-	-	-
NK32/20R	32mm mm	42mm mm	20mm mm	-	-	-	-
NK32/20R+IR28×32×20	28mm mm	42mm mm	20mm mm	-	-	-	-
NK32/30R	32mm mm	42mm mm	30mm mm	-	-	-	-
NK32/30R+IR28×32×30	28mm mm	42mm mm	30mm mm	-	-	-	-
HK1512	15mm mm	21mm mm	12mm mm	-	-	-	-
HK1412	14mm mm	20mm mm	12mm mm	-	-	-	-