4T-2689/2631 NTN Taper Roller Bearing 28.58x66.42x25.43mm

In stock
SKU: 4T-2689/2631-NTN
NTN hardened steel taper roller bearing priced cup & cone together 28.58mm inside x 66.42mm outside x 25.43mm width
Regular price From £44.66
£37.22 exc.VAT

Product details

  • Vendor NTN
  • SKU 4T-2689/2631-NTN
  • Barcode 4547359923605
  • Inside diameter (d) 28.58mm
  • Outside diameter (D) 66.42mm
  • Width (B) 25.43mm
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 28,575 mm
D - External diameter 66,421 mm
B - Bearing/Inner ring width 25,433 mm
C - Outer ring width 19,05 mm
T - Total width 23,812 mm
d1 - External diameter inner ring 45 mm
a - Charge load application point 14,512 mm
Mass 0,363 kg

PRODUCT PERFORMANCE
C - Dynamic load 71,5 kN
C0 - Static load 72,5 kN
Cu - Fatigue limit load 8,8 kN
A2 - Rating life coefficient 1
e - Coefficient 0.25
Y0 - Static axial load coefficient 1.3
Y2 - Upper axial load coefficient 2.36
Nlim - Oil lubrication limit speed 8200 tr/min
Nlim - Grease lubrication limit speed 6200 tr/min
Tmin - Min operating temperature -40 C
Tmax - Max operating temperature 120 C

ABUTMENT
da max - Max shoulder diameter IR 34 mm
db min - Min IR shoulder diameter 36 mm
Da max - Max shoulder diameter OR 58 mm
Db min - Min OR shoulder diameter 60 mm
ra max - Max fillet radius 1,3 mm
r1a - Max fillet radius 1,3 mm