Can you tell me the service life of bearing NACHI 6905ZE bearings

Good morning,

Can you tell me the service life of bearing NACHI 6905ZE bearings, to determine a maintenance frequency.


Thanks in advance.
I WANT TO BUY THIS BEARING X2 OBH 235C Deep Groove Ball Bearing

Hello, pls. price bearing NNU6017 V - 4pcs. Brand ??

Dear Sir, We have requirement for 12 Nos of BEARING SLEEVE FOR CYLINDRICAL ROLLER BEARING 313824 C4
232.21.0875.013 Typ 21/950.2 PCF50
2880/2820 23322EMW33W800C6
QVFL14V208SM RSL182208AXL
220KVE2902 MB18
JHM318448 EC513-611
QMP18J090SM 5209K C3
368A-90050 CSCF060
3MMV9112WICRUL 5407WBR
96825/96140 VI129A00
CRB 11020 HM516448