4T-JM718149/JM718110PK - NTN Single Row Taper Roller Bearing

  • £93.45


4T-JM718149/JM718110PK bearing reference breakdown

Below we will break down the 4T-JM718149/JM718110PK 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:

Prefix

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.
J - Which denotes the bearing is part of NTN's J-Line metric series, belonging to ABMA norm. Can also be associated with all other ABMA prefix (EL,EH,H,HH,HM,M,LM,L,LL)
M - Denotes that the bearing is part of the medium series

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

Suffix

PK - Tolerance class K (ABMA, J series) (for inch items only)
d (mm) 90 D (mm) 140 B (mm) 34
C (mm) 27 T (mm) 35 a (mm) 33
rs min (mm) 3 r1s min (mm) 2.5 e 0.44
Y2 1.35 Y0 0.74 Mass (kg) 2.14
ra max (mm) 3
Dynamic load C (kN) 189 Rating life coefficient A2 1.4 Static load C0 (kN) 279
Nlim (oil) (Tr/min) 3200 Nlim (grease) (Tr/min) 2400 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) 8.18
Characteristic outer ring frequency BPF0 (Hz) 9.73 Characteristic inner ring frequency BPFI (Hz) 12.27

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