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

NK75/25R - NTN

NK75/25R

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) 75 mm
External diameter (D) 92 mm
Width of bearing, drawn cup or outer ring (C) 25 mm
Min fillet radius (rs) 0,6 mm
Lubrication hole on outer ring Yes
Hole diameter (k) 3,5 mm
Radial clearance class CN
Precision class P0
Mass 0,315 kg
Brand NTN
Product classification image

PRODUCT PERFORMANCE

Dynamic load rating (Cr) 55 kN
Static load rating (C0r) 104 kN
Nlim (grease) 3700 tr/min
Nlim (oil) 5500 tr/min
Min operating temperature (Tmin) -20 °C
Max operating temperature (Tmax) 120 °C
Characteristic cage frequency, FTF 0,469 Hz
Characteristic rolling element frequency, BSF 15,938 Hz
Characteristic outer ring frequency, BPF0 14,531 Hz
Characteristic inner ring frequency, BPFI 16,469 Hz

ABUTMENT

Max shoulder diameter OR (Da max) 88 mm
Max shaft & housing fillet radius (ras max) 0,6 mm