Name	NKIB5903	NKIB5903R	RNA5903
Brand	INA	NTN	KOYO
Size (mm)	17x30x20(mm)	17x30x20(mm)	22x30x18(mm)
Bore Diameter (mm)	17(mm)	17(mm)	22(mm)
Outer Diameter (mm)	30(mm)	30(mm)	30(mm)
Width (mm)	20(mm)	20(mm)	18(mm)
d	17 mm 0.6693 in	17 mm 0.6693 in
D	30 mm 1.1811 in	30 mm 1.1811 in	30 mm 1.1811 in
B	20 mm 0.7874 in	20 mm 0.7874 in
C	18 mm 0.7087 in	18 mm 0.7087 in	18 mm 0.7087 in
F	22 mm 0.8661 in	22 mm 0.8661 in
rmin	0,3 mm 0.0118 in
m	58 g / Weight
Cr	12400 N / Dynamic load rating (radial)
C0r	14600 N / Static load rating (radial)
Ca	3150 N / Dynamic load rating (axial)
C0a	4900 N / Static load rating (axial)
Cur	2600 N / Fatigue limit load, radial
Cua	216 N / Fatigue limit load, axial
nG	20600 1/min / Limiting speed