4T-HM911245/HM911210 bearing reference breakdown
Below we will break down the 4T-HM911245/HM911210 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.
HM - Indicates that the bearing is part of the heavy medium series
|d (mm)||60.32||d1 (mm)||97.5||D (mm)||130.18|
|B (mm)||33.34||C (mm)||23.81||T (mm)||36.51|
|a (mm)||41.71||rs min (mm)||5||r1s min (mm)||3.3|
|ra max (mm)||5|
|Dynamic load C (kN)||156||Rating life coefficient A2||1.4||Static load C0 (kN)||186|
|Fatigue limit load Cu (kN)||22.7||Nlim (oil) (Tr/min)||3600||Nlim (grease) (Tr/min)||2700|
|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)||5.63||Characteristic outer ring frequency BPF0 (Hz)||6.78||Characteristic inner ring frequency BPFI (Hz)||9.22|