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 CRI-2618 Double Row Bearings	49	1,13	39.5	0.29
NTN 423056 Double Row Bearings	62 mm	160 mm	135 mm	UKFC212
NTN 413124 Double Row Bearings	0,029 Kg	0,3 mm	21x29x16	21 mm
NTN 432320U Double Row Bearings	37,7 mm	9 mm	55	30
NTN CRD-9011 Double Row Bearings	0.1	METRIC	1.52 mm	95.5 mm
NTN 3230/630G2 Double Row Bearings	43300 lbf	1.2	37200 lbf	3.19 in
NTN 430320X Double Row Bearings	53,9 kN	20,638 mm	30,213	0,26 Kg
NTN CRI-4805 Double Row Bearings	40	18 mm	1,1 mm	NUP208-E-MPA
NTN 423188 Double Row Bearings	482,000 N	3.19	Tapered Bore	4,400 rpm
NTN CRD-3811 Double Row Bearings	1 mm	70	45 mm	120 mm
NTN CRD-8029 Double Row Bearings	0.189 Kg	1 mm	19.25	35 kN
NTN CRD-2254 Double Row Bearings	29 mm	BK202918	18	20,8 kN