BEARINGS (UK) LTD.

Four Row Bearings  

Four row tapered roller bearingsare specially designed for rolling mill applications where their thin cross-section height and increased width provide higher capacity. The difference between a TQO bearing and a 2TDIW bearing design is relatively minor, as each uses two TDI cones.

The TQO design uses two TDI cones, one double cup in the middle, two single cups one on each end, two cup spacers, and a cone spacer.
The 2TDIW design uses two TDI cones, four single cups, three cup spacers. The cones are match ground, therefore no cone spacer is required.
Either design can be supplied depending on the preference of the mill; however, the TQO is the most commonly used design.

There are a variety of special features that can be incorporated in the design of four row tapered rolling bearings, such as face notches, helical bore grooves, extended cones, re-lubrication accommodations, cups and/or cone seals, etc.

NTN  EE655271D/655345/655346DG2 Four Row Bearings  
Flange Block
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NTN  CRO-6022 Four Row Bearings  
Pillow Block
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NTN  EE280700D/281200/281201D Four Row Bearings  
Take Up Units
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NTN  CRO-8005 Four Row Bearings  
Pillow Block
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NTN  HM265049D/HM265010/HM265010DG2 Four Row Bearings  
Flange Block
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NTN  M238849D/M238810/M238810D Four Row Bearings  
Flange Block
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NTN  625960 Four Row Bearings  
Pillow Block
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NTN  CRO-10008 Four Row Bearings  
Pillow Block
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NTN  T-46791D/46720/46721D Four Row Bearings  
Flange Block
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NTN  CRO-5660LL Four Row Bearings  
Cylindrical Roller Bearing
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NTN  T-M244249D/M244210/M244210D Four Row Bearings  
Flange Block
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NTN  CRO-6022 Four Row Bearings  
Pillow Block
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