61900 Series Radial Ball Bearings – Thin Section Metric

2RS

Thin section bearings in metric sizes
Grooved raceways on inner and outer rings sustain moderate axial loads in both directions in addition to radial loads
Balls separated by steel cages permit high-speed operation
Constructed from high-quality SAE-52100 chromium bearing steel
Available as sealed (2RS), shielded (ZZ) or open.

Specifications:
ABT Bearing No.	61904 2RS PRX
Bore diameter (d)	20 mm
Outer diameter (D)	37 mm
Width (B)	9 mm
Basic Load Rating
Dynamic	1440 lbs
Static	830 lbs
Speed Rating
Grease	12000 RPM
Oil	15000 RPM
Weight	0.100 lbs
ABEC Rating	ABEC 1
Grease	Mobil Polyrex EM, 30-40% free volume fill
Radial Internal Clearance (C0)	0.005 to 0.02 mm (0.0002 to 0.0008 inch)
Tolerance
Inner Ring (d)	+0 to -0.1 mm (+0 to -0.0004 inch)
Outer Ring (D)	+0 to -0.01 mm (+0 to -0.0004 inch)
Width (W)	+0 to -0.12 mm (+0 to -0.0047 inch)