4T-LM300849/LM300811 bearing reference breakdown
Below we will break down the 4T-LM300849/LM300811 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.
LM - Denotes that the bearing is part of the light medium series
|d (mm)||41||d1 (mm)||54.5||D (mm)||67.98|
|B (mm)||18||C (mm)||13.5||T (mm)||17.5|
|ra max (mm)||3.94|
|Dynamic load C (kN)||46||Rating life coefficient A2||1.4||Static load C0 (kN)||62.5|
|Fatigue limit load Cu (kN)||7.6||Nlim (oil) (Tr/min)||7000||Nlim (grease) (Tr/min)||5300|
|Min operating temperature Tmin (°C)||-40||Max operating temperature Tmax (°C)||120||Characteristic cage frequency FTF (Hz)||0.44|
|Characteristic rolling element frequency BSF (Hz)||8.65||Characteristic outer ring frequency BPF0 (Hz)||10.22||Characteristic inner ring frequency BPFI (Hz)||12.78|