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 LM665949/LM665910D+A Double Row Bearings	18,25 mm	1,5 mm	17 mm	N/A
NTN CRI-4612 Double Row Bearings	220 mm	Q244	65 mm	220x400x65
NTN T-HM256849D/HM256810G2+A Double Row Bearings	No	ecat_NSRDGB	16	0,241 Kg
NTN CRD-6137 Double Row Bearings	30	NTN	30 mm	17 mm
NTN CRD-6006 Double Row Bearings	50,8	Fersa	50,8 mm	111,125 mm
NTN 423128 Double Row Bearings	45 kN	FYH	66	71,6 kN
NTN CRI-2416 Double Row Bearings	105	91.3	174	1570 kN
NTN T-HM256849D/HM256810G2+A Double Row Bearings	2 mm	33 mm	2 mm	189 mm
NTN CRD-3254 Double Row Bearings	100	100 mm	65 mm	BS 50/100 7P62U
NTN CRD-5613 Double Row Bearings	150 mm	2,1 mm	NU412-M	2,1 mm
NTN 323184 Double Row Bearings	25x42x9	B00308	Single Row Ball Bear	No
NTN 323184 Double Row Bearings	40 mm	40 °	80	68,3 mm