Double Row Bearings

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Two-row, or double-row, cylindrical bearings are designed for additional strength in carrying radial loads. These bearing types are interchangeable so the dimensions and diameter under the rollers (NNU style) and diameter over the rollers (NN style) are held to an ISO/DIN standard.The raceways in these bearings are positioned off-center to handle angular (combined radial and thrust) loads. Double-row bearings handle thrust loads in both directions. Open bearings dissipate heat more efficiently than shielded and sealed bearings.

Double Row Angular Contact Ball Bearings have two seprate rows of balls arranged back-to-back. The lines of action of the load at the contact between balls and raceways (load lines) diverge at the bearing axis and form an angle of 30° to the radial plane.

Bearing Number	Bore Dia	Outer DIa	Width	Size
NTN 323128 Double Row Bearings	3.5 mm	90 mm	98 mm	M75x2.0
NTN 29875/29820D+A Double Row Bearings	20x47x14	1	25	Ball
NTN CRD-8808 Double Row Bearings	No	15,5 mm	32000	26 mm
NTN M255449D/M255410A+A Double Row Bearings	0,843 Kg	165 kN	30 mm	CYSD
NTN T-M252349D/M252310+A Double Row Bearings	6 mm	12	2,89 kN	6901L11
NTN EE547341D/547480G2+A Double Row Bearings	0.6250 in	3.96 in	3.78 in	0.39
NTN LM665949/LM665910D+A Double Row Bearings	86.00 mm	82.00 mm	105.00 mm	KM24
NTN CRD-6101 Double Row Bearings	3.0 mm	0.37	610	24148YMBC6
NTN CRD-3013 Double Row Bearings	72 mm	54 mm	58 mm	50 mm
NTN CRD-6137 Double Row Bearings	24,7 kN	26	20	20 mm
NTN CRD-5212 Double Row Bearings	6208-2Z	1,1 mm	40x80x18	29,5 kN
NTN CRD-8008 Double Row Bearings	0,0425 Kg	22 mm	29	30