4T-2789/2729 NTN Taper Roller Bearing 39.69x76.20x23.81mm

In stock
SKU: 4T-2789/2729-NTN
NTN hardened steel taper roller bearing priced cup & cone together 39.69mm inside x 76.20mm outside x 23.81mm width
Regular price From £39.88
£33.23 exc.VAT

Product details

  • Vendor NTN
  • SKU 4T-2789/2729-NTN
  • Barcode 4547359784671
  • Inside diameter (d) 39.69mm
  • Outside diameter (D) 76.2mm
  • Width (B) 23.81mm
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 39,688 mm
D - External diameter 76,2 mm
B - Bearing/Inner ring width 25,654 mm
C - Outer ring width 19,05 mm
T - Total width 23,812 mm
d1 - External diameter inner ring 55 mm
a - Charge load application point 16 mm
rs - Min fillet radius 3,5 mm
r1s - Min fillet radius 0,8 mm
Mass 0,48 kg

PRODUCT PERFORMANCE
C - Dynamic load 81 kN
C0 - Static load 90,5 kN
A2 - Rating life coefficient 1
e - Coefficient 0.3
Y0 - Static axial load coefficient 1.09
Y2 - Upper axial load coefficient 1.98
Nlim - Oil lubrication limit speed 6800 tr/min
Nlim - Grease lubrication limit speed 5100 tr/min
Tmin - Min operating temperature -40 C
Tmax - Max operating temperature 120 C

ABUTMENT
da max - Max shoulder diameter IR 45 mm
db min - Min IR shoulder diameter 52 mm
Da max - Max shoulder diameter OR 70 mm
Db min - Min OR shoulder diameter 68 mm
ra max - Max fillet radius 3,5 mm
r1a - Max fillet radius 0,8 mm