Precision Cylindrical Roller BearingsWD cylindrical roller bearings have many designs, dimension series
and sizes. The majority is single row bearings with a cage. Single
and double row full complement bearings (without cage) complete the
WD standard assortment for general engineering. Bearings with a
cage can accommodate heavy radial loads and operate at high speeds.
Full complement cylindrical roller bearings are suitable for very
heavy radial loads at moderate speeds.
The rollers of WD cylindrical roller bearings are key components.
Their geometry, the so-called logarithmic profile, provides an
optimum stress distribution in the contact zones in the bearing.
Their surface finish maximizes lubricant film formation and
optimizes rolling motion of the rollers. The benefits derived from
this compared with traditional designs include enhanced operational
reliability and a greater insensitivity to misalignment.
The range of WD cylindrical roller bearings comprises the basic
types
WD single row cylindrical roller bearings, caged, mainly of the NU,
NJ, NUP and N designs.
WD double row cylindrical roller bearings, caged, mainly of the
NNUand NN designs.
WD single row full complement cylindrical roller bearings, mainly
of the NCF and NJG designs.
WD double row full complement cylindrical roller bearings, mainly
of the NNF design.
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Precision Cylindrical Roller Bearings| Bearing Code | NN3014ASK |
| d | 70 |
| D | 110 |
| B | 30 |
| rsmin | 1.1 |
| E | 100 |
| Masskg | 1.04 |
| CrkN | 98 |
| CorkN | 150 |
| Attainable speed | 7000 |
| oil throwaway | 8500 |
| D1min | 76 |
| D4max | 104 |
| D5min | 102 |