4T-JH211749/JH211710PK - NTN Single Row Taper Roller Bearing

  • £82.25

4T-JH211749/JH211710PK bearing reference breakdown

Below we will break down the 4T-JH211749/JH211710PK 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.
H - Indicates that the bearing is part of the heavy series
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)

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


PK - Indicates the bearing as being in tolerance class K (ABMA, J series) (for inch items only)
d (mm) 65 D (mm) 210 B (mm) 38.5
C (mm) 32 T (mm) 39 a (mm) 28.1
rs min (mm) 3 r1s min (mm) 2.5 e 0.34
Y2 1.78 Y0 0.98 Mass (kg) 1.86
ra max (mm) 3
Dynamic load C (kN) 185 Rating life coefficient A2 1.4 Static load C0 (kN) 248
Nlim (oil) (Tr/min) 4100 Nlim (grease) (Tr/min) 3100 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) 6.32
Characteristic outer ring frequency BPF0 (Hz) 7.22 Characteristic inner ring frequency BPFI (Hz) 9.78

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