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RNA4840 - NTN

RNA4840

Needle roller bearing, machined-ring, without inner ring, double-side ribs, lubrication hole

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Technical datasheet

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Specs

PRODUCT DIMENSIONS

Under rollers diameter (Fw) 220 mm
External diameter (D) 250 mm
Width of bearing, drawn cup or outer ring (C) 50 mm
Min fillet radius (rs) 1,5 mm
Lubrication hole on outer ring Yes
Hole diameter (k) 4 mm
Radial clearance class CN
Precision class P0
Mass 3,35 kg
Brand NTN
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PRODUCT PERFORMANCE

Dynamic load rating (Cr) 231 kN
Static load rating (C0r) 705 kN
Nlim (grease) 1200 tr/min
Nlim (oil) 1800 tr/min
Min operating temperature (Tmin) -20 °C
Max operating temperature (Tmax) 120 °C

ABUTMENT

Max shoulder diameter OR (Da max) 242 mm
Max shaft & housing fillet radius (ras max) 1,5 mm