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4T-JM205149 - NTN Single Row Taper Roller Bearing

4T-JM205149 - NTN Single Row Taper Roller Bearing

Regular price £28.86
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4T-JM205149 bearing reference breakdown

Below we will break down the 4T-JM205149 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.
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
d (mm) 50 d1 (mm) 69 B (mm) 28
e 0.33 Y2 1.82 Y0 1
ra max (mm) 3
Dynamic load C (kN) 106 Rating life coefficient A2 1.4 Static load C0 (kN) 141
Fatigue limit load Cu (kN) 17.2 Nlim (oil) (Tr/min) 5400 Nlim (grease) (Tr/min) 4100
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) 6.72 Characteristic outer ring frequency BPF0 (Hz) 8.15 Characteristic inner ring frequency BPFI (Hz) 10.85
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