Bearings
ADR bearing designation: X2.5
This designation is only defining the size and shape of the ball bearing. Materials and performances have to be detailed during study and quotation.
Basic load rating of bearing
Static radial capacity [Co] : 91 N
Static axial capacity [Ca] : 45 N
Dynamic radial capacity (X105CrMo17) [C] : 206 N
Dynamic radial capacity (100Cr6) [C] : 257 N
To improve Capacity and Life time, please contact us
Bearing version
Rigid bearing - Metric serie
Deep groove ball bearing
With stainless steel ribbon cage
For Bearing Protected with shields or seals, please contact us
Tolerance, internal clearance and calibration
Tolerance class selected usually
Class "T4" for Rigid ball bearing
Class "TA4" for Thin Section ball bearing
For others tolerances, please refer to our catalogue page 32 to 43
Please note that A406 and A408 are under T4 class and not TA4 class
Assembling configuration
ADR proposes different bearings pair configuration in
standard, for example
"DO" Duplex ball bearings in Back-to-Back configuration
"DX" for Duplex ball bearings in Face-to-Face configuration
Please contact ADR to define assembling configuration and preload value.
Dimensions
d = 2.5 mm
D = 7 mm
B* = 2.5 mm
values
d1 = 4 mm
D1 = 5.5 mm
r = 0.15 mm
Speed limit
Ball bearing with ribbon cage + grease : 67000 rpm
Please contact us : TBD rpm
Mean mass
Ball bearing mass 0.47 g
*) For Protected bearing (ZZ; FF; -2RS), Width B and Flange width C1 can be larger depending of the size of bearing, please contact us
Additional Informations
Recommended lubricant operating temperature :
Open ball bearing : Oil, ISOFLEX PDP38 - Minimum -65°C and +100°C maximum
Protected ball bearing : Grease, NYCOGREASE GN10 - Minimum -73°C and +121°C maximum
Recommended material use temperature :
In standard Stainless steel ring and cage, maximum temperature to 150°C
Phenolic resin cage, maximum temperature to 120°C
PTFE separators balls, maximum temperature to 150°C
For further information on the designation, please refer to catalogue or contact our technical department
Data are not contractually binding. ADR disclaims any responsibility for printing errors in this data sheet
23 - Nov -2024