4T-LM11949L - NTN Single Row Taper Roller Bearing

  • £9.44

4T-LM11949L bearing reference breakdown

Below we will break down the 4T-LM11949L 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:


4T - 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

The suffix can be found at the end of the bearing number:


L - Denotes a seal feature on cone
d (mm) 19.05 d1 (mm) 31 B (mm) 16.64
r1s min (mm) 1.3 e 0.3 Y2 2
Y0 1.1 Mass (kg) 0.08
ra max (mm) 1.3
Dynamic load C (kN) 28.3 Rating life coefficient A2 1.4 Static load C0 (kN) 28.6
Nlim (oil) (Tr/min) 12000 Nlim (grease) (Tr/min) 8900 Min operating temperature Tmin (°C) -40
Max operating temperature Tmax (°C) 120 Characteristic cage frequency FTF (Hz) 0.4 Characteristic rolling element frequency BSF (Hz) 4.98
Characteristic outer ring frequency BPF0 (Hz) 5.67 Characteristic inner ring frequency BPFI (Hz) 8.33

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