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4T-LM11749/LM11710 - NTN Single Row Taper Roller Bearing

4T-LM11749/LM11710 - NTN Single Row Taper Roller Bearing

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4T-LM11749/LM11710 bearing reference breakdown

Below we will break down the 4T-LM11749/LM11710 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
d (mm) 17.46 d1 (mm) 28.5 D (mm) 39.88
B (mm) 14.6 C (mm) 10.67 T (mm) 13.84
a (mm) 8.54 e 0.29 Y2 2.1
Y0 1.15 Mass (kg) 0.08
ra max (mm) 1.3
Dynamic load C (kN) 23.8 Rating life coefficient A2 1.4 Static load C0 (kN) 24.2
Fatigue limit load Cu (kN) 2.95 Nlim (oil) (Tr/min) 13000 Nlim (grease) (Tr/min) 10000
Min operating temperature Tmin (°C) -40 Max operating temperature Tmax (°C) 120 Characteristic cage frequency FTF (Hz) 0.41
Characteristic rolling element frequency BSF (Hz) 5.09 Characteristic outer ring frequency BPF0 (Hz) 6.1 Characteristic inner ring frequency BPFI (Hz) 8.9
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