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 323184 Double Row Bearings	100 mm	210 mm	98 mm	155 mm
NTN CRD-2421 Double Row Bearings	42 mm	12,3 mm	59,2 mm	114,3 mm
NTN 430326XU Double Row Bearings	MSM305BXHATL	8 x M30	27.9 in	1.6 in
NTN 4231360 Double Row Bearings	NTN	58,000	360,000 mm	58,000 mm
NTN T-LM742749D/LM742710+A Double Row Bearings	475 mm	115 mm	55 mm	108
NTN CRD-6025 Double Row Bearings	65 mm	7	50x65x7	6,7 kN
NTN CRD-5214 Double Row Bearings	35 mm	70x85x35	0,6 mm	73 kN
NTN CRI-2616 Double Row Bearings	0.3 mm	9.75 kN	265 N	1.41
NTN LL687949/LL687910D+A Double Row Bearings	Felt Seal	MSM105BR	2130 rpm	87226 lbf
NTN CRD-6137 Double Row Bearings	591 mm	591	420	6 350 kN
NTN T-HM266448/HM266410D+A Double Row Bearings	40x47x20	4 000 r/min	2.5 mm	52,5 kN
NTN LM247748D/LM247710A+A Double Row Bearings	47	36 mm	0.241 Kg	7 mm