NA4912
RNA4912
275
60
68
85
25
1
49.2
86.4
4800
NA4912 is a Machined Ring Needle Roller Bearing (NA/RNA Series).
The NA Series includes an inner ring, while the RNA Series uses the shaft as the raceway surface for a more compact design.
Without Inner Ring Type: RNA4912
Bore (d): 60 mm
Outer Ring Bore (Fw): 68 mm
Outer (D): 85 mm
Width (C): 25 mm
Chamfer r min: 1 mm
Dynamic Load: 49.2 kN
Static Load: 86.4 kN
Limiting Speed: 4,800 rpm
Weight: 275 g
Some non-standard or currently out-of-stock bearings may not be immediately available. If you have specific requirements, feel free to contact us — we will do our best to confirm lead times and provide alternative solutions.
