Due to technical maintenance, the NTN-SNR on-line ordering system will be unavailable Sunday 19th September from 5.00am to 5.00pm (UTC+02:00). We apologize for any inconvenience this may cause.

Back

RNA4838 - NTN

RNA4838

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

Downloads

Technical datasheet

PLEASE LOGIN to add products to your basket
Contact us
Specs

PRODUCT DIMENSIONS

Under rollers diameter (Fw) 210 mm
External diameter (D) 240 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 3,21 kg
Brand NTN
Product classification image

PRODUCT PERFORMANCE

Dynamic load rating (Cr) 227 kN
Static load rating (C0r) 680 kN
Nlim (grease) 1300 tr/min
Nlim (oil) 1900 tr/min
Min operating temperature (Tmin) -20 °C
Max operating temperature (Tmax) 120 °C

ABUTMENT

Max shoulder diameter OR (Da max) 232 mm
Max shaft & housing fillet radius (ras max) 1,5 mm