4T-L21549/L21511 bearing reference breakdown
Below we will break down the 4T-L21549/L21511 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.
L - Denotes the bearing is part of the light series
|d (mm)||15.88||D (mm)||34.99||B (mm)||11|
|C (mm)||8.71||T (mm)||11||a (mm)||7.7|
|rs min (mm)||1.3||r1s min (mm)||1.3||e||0.32|
|ra max (mm)||1.3|
|Dynamic load C (kN)||14||Rating life coefficient A2||1.4||Static load C0 (kN)||13.7|
|Nlim (oil) (Tr/min)||15000||Nlim (grease) (Tr/min)||11000||Min operating temperature Tmin (°C)||-40|
|Max operating temperature Tmax (°C)||120||Characteristic cage frequency FTF (Hz)||0.42||Characteristic rolling element frequency BSF (Hz)||5.69|
|Characteristic outer ring frequency BPF0 (Hz)||5.83||Characteristic inner ring frequency BPFI (Hz)||8.17|