For UK customers only. Please choose the correct Shipment option when confirming order – Economy Express is for France orders only.

Back

6844 - NTN

6844

Deep groove ball bearing, radial contact, machined cage, open

The single row deep-groove ball bearing is the most popular bearing. It is available in a wide range of sizes with several possible options: sealing with shields or seals, presence of a retaining ring, varied clearances, several cage types, etc.

Downloads

3D file

Technical datasheet

PLEASE LOGIN to add products to your basket
Contact us
PRODUCT DEFINITION
BrandNTN
d - Internal diameter220 mm
D - External diameter270 mm
B - Bearing/Inner ring width24 mm
rs - Min fillet radius1,5 mm
Radial clearance classCN
Mass3 kg
Product classification image
PRODUCT PERFORMANCE
C - Dynamic load84,5 kN
C0 - Static load98 kN
Cu - Fatigue limit load4,15 kN
f0 - Coefficient16
Nlim - Oil lubrication limit speed2400 tr/min
Nlim - Grease lubrication limit speed2100 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Characteristic outer ring frequency (60 rpm)12,669 Hz
BPFI - Characteristic inner ring frequency (60 rpm)14,331 Hz
FTF - Characteristic cage frequency (60 rpm)0,469 Hz
BSF - Characteristic rolling element frequency (60 rpm)16,184 Hz
ABUTMENT
da min - Min shoulder diameter IR228 mm
Da max - Max shoulder diameter OR262 mm
ra max - Max shaft & housing fillet radius1,5 mm
Product classification image
Calcul factors image