Specifications of TIMKEN Bearing 440RX2245
![TIMKEN Bearing 440RX2245](https://cad.timken.com/Asset/Four-Row-Cylindrical-Roller-Bearing---RX-1-9-11-2.jpg)
Specifications
Bore d |
440 mm |
Static Load Rating Co |
4560000 N20200000 lbf |
Dynamic Load Rating C11 |
2040000 N9100000 lbf |
Weight |
965.300 lb |
Bearing Dimensions
O.D. D |
620 mm24.4094 in |
Width B |
450 mm17.7165 in |
Width C |
450 mm17.7165 in |
DUR/DOR F/E |
487 mm19.1732 in |
Type |
RX-1 |
Mounting Data
Chamfer rsmin |
4 mm0.16 in |
Chamfer r1smin2 |
12.0 mm0.470 in |
Angle of Chamfer r1smin |
20 º |
Backing Shaft Diameter ds |
477.4 mm18.8000 in |
Backing Housing Diameter Ds |
577 mm22.7200 in |
Lubrication Data
Lubrication Groove g |
16.0 mm0.63 in |
Lubrication Hole Diameter h |
7.5 mm0.30 in |
Number of Lubrication Holes |
8 |
Applications
Product Features
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Design Benefits
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Radial Internal Clearance (RIC)
Timken supplies inner rings in two ways: a finished state with noadditional grinding required or a semi-finished condition withappropriate grind stock. Semi-finished inner rings allow milloperators to optimize the roll’s precision by finish grinding theinner ring after mounting it onto the roll. The part numbers for these bearings and inner-ring assembliesare identified by a CF suffix. |
Lubrication
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Material
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Mounting Design and Fitting Practice
The housing fitting practice usually results in a loose fit tofacilitate easy removal at regular maintenance intervals. Thepreferred shaft fit is tight. There are occasions where loose shaftfits are tolerated, such as on some roughing-mill equipment. Inthe cases where a shaft fit is loose, inner-race bore lubricationgrooves must be incorporated in the bearing. Check with yourTimken representative for a more details on mounting four-rowcylindrical roller bearings. Mounting information also is availablein the Timken Engineering Manual (order no. 10424) on timken.com/catalogs. In order to facilitate the dismounting, face slots can be added onthe inner rings (W30B modification code). Inner rings can be ordered separately from the outer assemblyin order to equip additional spare rolls. Inner- and outerringassemblies are interchangeable in regard to internalclearance. |