Deep Groove Ball Bearing

Model	61804
Innner diameter	20mm
Outside diameter	32mm
Width	7mm
Quality System Certificate	ISO9001:2008
Brand	UMT
Hardness	Chrome steel HRC60-65
Clearance	C2,C3,C4
Lubrication	Oil,grease,dry
Noise Level	Z1,Z2,Z3,Z4

The type of deep groove ball bearing:
with a ring
with a dust cover:single or double matal dust cover.
with non-contact rubber seals:single or double-sided non-contact seals.
with contact rubber seals:single or double-contact seal with the inner contact.
outer ring with groove
N:outer ring groove
NR:outer ring groove and snap ring.