- AddressPlot No. 187, Sector99, HSIIDC Growth Centre, Bawal Distt. Rewari, Haryana87651, India
- Phone(Working Time)212-522-67-78-90
- Phone(Nonworking Time)212-522-67-78-90
Multi-Row Roller Bearings
Contact NowMulti-Row Roller Bearings are primarily designed and used as roll-neck bearings in rolling mills. The four rows of rollers lends itself to carry large radial loads for the given bearing cross section. Contoured rollers with tight diametrical tolerances maximize the ability of this bearing to evenly distribute the load to all four rows. Most common types include the use of a machined brass finger cage or a machined mild steel finger cage. No suffix is required for the brass cage but the SM suffix is used for the steel. In larger sizes, the use of a steel pin type cage with hollow rollers is standard. Many outer race and inner race configurations and design types are available to meet installation or interchangeability requirements. Most bearings are supplied with C4 Internal Radial Clearance and P5 Accuracy to perform well in these roll neck applications.
A big advantage of multi-row roller bearings is their very high radial load capacity. Due to the large number of rolling elements the impact force is well distributed. The friction is lower than at other multi row bearing types. Multi row cylindrical roller bearings cannot absorb axial forces. However, in service an axial displacement is possible.
Bearing Number | Bore Dia | Outer DIa | Width | Size |
---|---|---|---|---|
NTN NNU4984K Multi-Row Roller Bearings | Periodic Lubrication | 29 N/mm2;S | 500SP1 SL1 | 15 mm |
NTN NN3028 Multi-Row Roller Bearings | Split Cylindrical Ro | 13.0000 in | Split Pillow Block | Round |
NTN NN3056 Multi-Row Roller Bearings | 15.2500 in | 6.4375 in | 23-1/8 in | 7.5000 in |
NTN NNU3060 Multi-Row Roller Bearings | Standard Duty | 5.3750 in | Four-Bolt Flange | Triple Lip |
NTN NNU3068 Multi-Row Roller Bearings | 848330 | SS | CT-1000-K26, SAE841 | 2 in |
NTN NN3932 Multi-Row Roller Bearings | 0.34 | 0.0919 | 240.000 mm | YMB |
NTN NN3022 Multi-Row Roller Bearings | Open | Without Snap Ring | Round | 15 mm |
NTN NN3020 Multi-Row Roller Bearings | 0.020 in | 0.24 lb | ISO-GARD® Flange | Ambient |
NTN NN3034K Multi-Row Roller Bearings | 0328005000 | 250 mm | Straight | Chrome Steel |
NTN NN3936K Multi-Row Roller Bearings | Oil-Impregnated Sint | 1200 fp/min | 6-1/2 in | MIL-B-5687C Type I C |
NTN NNU3184 Multi-Row Roller Bearings | Class 2 | 4.3750 in | 2.8125 in | 7.0000 in |
NTN NN3932 Multi-Row Roller Bearings | 24.9950 in | TDO Assembly | Steel | Open |