4T-HM88542/HM88510 bearing reference breakdown
Below we will break down the 4T-HM88542/HM88510 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)||31.75||d1 (mm)||56.5||D (mm)||73.02|
|B (mm)||27.78||C (mm)||23.02||T (mm)||29.37|
|ra max (mm)||1.3|
|Dynamic load C (kN)||72||Rating life coefficient A2||1.4||Static load C0 (kN)||97|
|Fatigue limit load Cu (kN)||11.8||Nlim (oil) (Tr/min)||7100||Nlim (grease) (Tr/min)||5400|
|Min operating temperature Tmin (°C)||-40||Max operating temperature Tmax (°C)||120||Characteristic cage frequency FTF (Hz)||0.43|
|Characteristic rolling element frequency BSF (Hz)||6.92||Characteristic outer ring frequency BPF0 (Hz)||7.8||Characteristic inner ring frequency BPFI (Hz)||10.2|