4T-JL68145/JL68111Z bearing reference breakdown
Below we will break down the 4T-JL68145/JL68111Z bearing reference and provide an explanation for each section provided it can actually be broken down. We can split it into 3 parts the prefix, suffix and body of the item code.
The prefix can be found at the beginning of the bearing code:
Prefix4T - The 4T- prefix designates a tapered roller bearing that is made of a special grade of case-hardened bearing steel and is interchangeable with other manufacturers taper with the same part number.
JL - Denotes a metric cone and cup, AFBMA “light” series
The suffix can be found at the end of the bearing number:
SuffixZ - Idicates a shield on one side
|d (mm)||35||D (mm)||60||B (mm)||18.41|
|C (mm)||11.94||T (mm)||15.88||a (mm)||13.4|
|rs min (mm)||2||r1s min (mm)||1.3||e||0.42|
|ra max (mm)||2|
|Dynamic load C (kN)||35.5||Rating life coefficient A2||1.4||Static load C0 (kN)||47.5|
|Nlim (oil) (Tr/min)||8100||Nlim (grease) (Tr/min)||6100||Min operating temperature Tmin (°C)||-40|
|Max operating temperature Tmax (°C)||120||Characteristic cage frequency FTF (Hz)||0.45||Characteristic rolling element frequency BSF (Hz)||8.52|
|Characteristic outer ring frequency BPF0 (Hz)||10.32||Characteristic inner ring frequency BPFI (Hz)||12.68|