270*390*220mm 54FC39220(FC5476220A/YA3) Rolling Mill Bearing
The 54FC39220(FC5476220A/YA3) bearing is a Rolling Mill Bearing with an inner diameter of 270 mm , an outer diameter of 390 mm, a width of 220 mm. It typically uses P5 grade precision tolerances and open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
270*390*220mm 54FC39220(FC5476220A/YA3) rolling mill bearing
This kind of bearings are the most widely used bearings for various rolling
Mills in the metallurgical industry.
1. Main characteristics
A. The bearings take on the largest value of dynamic load rating in limited space;
B. They can be used for high speed;
C. The bearings allow precise limiting tolerance;
D. The inner ring and outer components (outer ring, complete sets of
Rollers) are interchangeable, advantageous to quick roll changing;
E. The bearings can bear radial load only.
2. Bearing structure type
Based on the three basic structure, there are several variant structure:
FC...A type: Without oil groove or hole in the outside diameter, with oil groove on outer ring surface;
FC...B type: With oil groove and hole in the outside diameter, with oil groove on outer ring surface;
FC...E type: Without oil groove or hole in the outside diameter, with oil groove on outer ring surface, without rib in the outside diameter, integrated window cage;
FCD...A type: Without oil groove or hole in outside diameter, with oil groove on outer ring surface;
FCD...B type: With oil groove and hole in outside diameter, with oil groove on outer ring surface;
FCD...Y type: Without oil groove or hole in outside diameter, with oil groove on outer ring surface, with spacer between the two outer rings.
FCD...2LS type: Without oil groove or hole in outside diameter, sealed type;
FCDP...E type: With oil groove and hole in outer diameter, with oil groove in inner surface, dowel cage (hollow roller) or solid widowtype.
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