NTN 4T-3778/3720 Bearing

Part Number	4T-3778/3720
Brand	NTN
Type	Tapered roller bearings Inch series
Mass	0.898 kg
Boundary dimensions (mm)
Inner dia. (d)	47.625
Outer dia. (D)	93.264
Width (B)	30.302
ras max	6.4
Basic load ratings (kN)
Dynamic (Cr)	102
Static (Cor)	134
Basic load ratings (kgf)
Dynamic (Cr)	10400
Static (Cor)	13700
Limiting speed (min-1)
Grease	4000
Oil	5300

As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "+" (inner ring) and "++" (outer ring), the precision class is an integer for class 4 and class 2 bearings only. Bearings with a # symbol next to the serial number are J-series bearings, and have a different tolerance to other series. For more details, see “Bearing Tolerance” listed in the “NTN ‘Ball and Roller Bearings’ Catalog.”

Nodes have NTN 4T-3778/3720 bearings in stock. Tapered roller bearings (Inch series), are designed so the inner and outer ring raceway and the apex of the tapered rollers intersect at one point on the bearing centerline.