4T-72200C/72487 NTN Taper Roller Bearing 50.8x123.8x36.51mm

NTN taper roller bearings are precision-engineered components designed to facilitate smooth rotational motion in various mechanical systems, particularly in applications where radial and axial loads need to be accommodated simultaneously. These bearings feature an inner ring (cone), an outer ring (cup), tapered rollers, and a cage assembly.

NTN taper roller bearings offer several advantages:

- High Load Capacity: The tapered design and robust construction enable these bearings to withstand heavy radial and axial loads, making them suitable for demanding applications.
- Precision Engineering: NTN's manufacturing processes ensure consistent quality and precision tolerances, resulting in reliable performance and extended service life.
- Reduced Friction: The tapered roller configuration minimizes frictional resistance, contributing to improved efficiency and energy savings.
- Versatility: These bearings are available in various sizes and configurations to suit diverse industrial applications, including automotive, aerospace, construction, and manufacturing.

Overall, NTN taper roller bearings are renowned for their durability, reliability, and exceptional performance in challenging operating conditions. They play a crucial role in enhancing the efficiency and reliability of machinery across various industries.

d - Internal diameter 50,8 mm
D - External diameter 123,825 mm
B - Bearing/Inner ring width 32,791 mm
C - Outer ring width 25,4 mm
T - Total width 36,512 mm
d1 - External diameter inner ring 89,5 mm
a - Charge load application point 38,012 mm
Mass 2,1 kg

PRODUCT PERFORMANCE
C - Dynamic load 171 kN
C0 - Static load 188 kN
Cu - Fatigue limit load 22,9 kN
A2 - Rating life coefficient 1
e - Coefficient 0.74
Y0 - Static axial load coefficient 0.45
Y2 - Upper axial load coefficient 0.81
Nlim - Oil lubrication limit speed 3900 tr/min
Nlim - Grease lubrication limit speed 2900 tr/min
Tmin - Min operating temperature -40 C
Tmax - Max operating temperature 120 C

ABUTMENT
da max - Max shoulder diameter IR 67 mm
db min - Min IR shoulder diameter 77 mm
Da max - Max shoulder diameter OR 102 mm
Db min - Min OR shoulder diameter 116 mm
ra max - Max fillet radius 3,5 mm
r1a - Max fillet radius 3,3 mm