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4T-LM29749/LM29711 - NTN Single Row Taper Roller Bearing
4T-LM29749/LM29711 - NTN Single Row Taper Roller Bearing
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£22.29
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4T-LM29749/LM29711 bearing reference breakdown
Below we will break down the 4T-LM29749/LM29711 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.LM - Denotes that the bearing is part of the light medium series
| d (mm) | 38.1 | d1 (mm) | 52 | D (mm) | 65.09 |
| B (mm) | 18.29 | C (mm) | 15.75 | T (mm) | 19.81 |
| a (mm) | 15.51 | e | 0.33 | Y2 | 1.8 |
| Y0 | 0.99 | Mass (kg) | 0.25 |
| ra max (mm) | 2.3 |
| Dynamic load C (kN) | 43.5 | Rating life coefficient A2 | 1.4 | Static load C0 (kN) | 57 |
| Fatigue limit load Cu (kN) | 7 | Nlim (oil) (Tr/min) | 7400 | Nlim (grease) (Tr/min) | 5500 |
| 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) | 8.22 | Characteristic outer ring frequency BPF0 (Hz) | 9.27 | Characteristic inner ring frequency BPFI (Hz) | 11.73 |
