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 413056 Double Row Bearings	30	22	22 mm	18
NTN 3231/500G2 Double Row Bearings	2000 r/min	65 mm	19.9 Kg	280 mm
NTN 3230/500 Double Row Bearings	94,4 kN	20,1	8,725 mm	9,41
NTN CRD-8808 Double Row Bearings	5.1 mm	40900 lbf	158000 lbf	1554.1
NTN 413072 Double Row Bearings	Timken	DL 6 10	6	12
NTN CRI-2855 Double Row Bearings	30	30 mm	30 mm	15000 r/min
NTN CRI-5615 Double Row Bearings	100	75,5 kN	100 mm	65x100x50.4
NTN 423092 Double Row Bearings	167 mm	98,425	5,15 Kg	Gamet
NTN 413092 Double Row Bearings	12,7 mm	FAG	5 mm	19,05 mm
NTN CRD-6136 Double Row Bearings	Open	322 mm	1,670,000 N	0.140 to 0.195 mm
NTN LM446349/LM446310D+A Double Row Bearings	NJ220-E-MA6+HJ220-E	34	2,1 mm	15 mm
NTN CRI-2554 Double Row Bearings	10	0,053 Kg	35 mm	8,35 kN