Double row cylindrical roller bearings

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Double Row cylindrical roller bearings are designed for heavy loads that can’t be serviced with a single row bearing. The additional row of rollers allows for the increased radial loads. These bearings are typically metric dimensioned with a machined brass cage. The cage is a one-piece roller riding brass finger cage that promotes smooth rolling. They are industry interchangeable with same size designation. They will be supplied with C3 Internal Radial Clearance unless specified. Bearings with tapered bore, “K” suffix, and P5 clearance can be supplied upon request. Applications include lathes, gearboxes, and pinion stands.

 

Double row cylindrical roller 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. Interchangeability is designed for the ring without the rollers to allow interchange with competitor inner rings.

 

Bearing Number Bore Dia Outer DIa Width Size
NNU4921K Double row cylindrical roller bearings 34.92 mm 14.5 mm 20.1 kN 21.45 mm
NNU4126 Double row cylindrical roller bearings Non-Expansion Not Applicable Polymer Max Life Cage
NN4926K Double row cylindrical roller bearings 18.3 mm SNR 3 mm -40 °C
NNU4176 Double row cylindrical roller bearings 37.3 mm 102 mm 49.5 kN 76.2 mm
NNU40/710 Double row cylindrical roller bearings 148 mm 1.89 kg 188 mm 33.4 mm
NNU3030 Double row cylindrical roller bearings 100 °C 77.8 mm -20 °C 68.6 mm
NN3920K Double row cylindrical roller bearings FLZ212- 25.4 mm 3.73 kg 238 mm
NN3034 Double row cylindrical roller bearings 360 mm 318 mm 2.5 mm 3 mm
NNU4956 Double row cylindrical roller bearings 54.2 kN 14,000 rpm 0.34 200 °C
NNU4984K Double row cylindrical roller bearings SCO209-45 FL209N- 38 mm -20 °C
NNUP4956 Double row cylindrical roller bearings 8,7mm ES205-15G2 71 mm -20 °C
NN4934 Double row cylindrical roller bearings 120 °C 6.1 kN 15 mm IR12X15X16.5
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