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  430324XU Double Row Bearings 1.1 mm Cylindrical Bore 1 mm 30.2 mm
NTN  CRD-8039 Double Row Bearings 220 318 220RJ30 Timken
NTN  423124 Double Row Bearings 44,45 mm SCE2812 44,45 19,05 mm
NTN  4130360 Double Row Bearings 42 mm BT1B 639417/Q 147 mm 100
NTN  323196 Double Row Bearings 35 mm 62 No 8482.10.50.68
NTN  432236U Double Row Bearings CX488 MERCEDES / G-Class 713667030 VKBA 3435
NTN  LL365340/LL365310D+A Double Row Bearings 140 mm CR - Phenolic Outer 179.200 mm 190 mm
NTN  M274149D/M274110G2+A Double Row Bearings Fersa 112,712 112,712 mm 66.675x112.712x30.16
NTN  CRD-6113 Double Row Bearings 18 mm 33 mm M20x1,5 102 mm
NTN  LM272249D/LM272210G2+A Double Row Bearings 0.014 K20X26X13H 26 26 mm
NTN  M262449D/M262410+A Double Row Bearings 65 mm 79 65x115x79 0.6 mm
NTN  430321X Double Row Bearings 19,9 kN 1,1 mm 22 mm 28 000 r/min
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