4T-LM12749/711 NTN Taper Roller Bearing 21.99x45.24x15.49mm

In stock
SKU: 4T-LM12749/711-NTN
NTN hardened steel taper roller bearing priced cup & cone together 21.99mm inside x 45.97mm outside x 15.49mm width
Regular price From £10.33
£8.61 exc.VAT

Product details

  • Vendor NTN
  • SKU 4T-LM12749/711-NTN
  • Barcode 4547359481280
  • Inside diameter (d) 21.99mm
  • Outside diameter (D) 45.97mm
  • Width (B) 15.49mm
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 21,986 mm
D - External diameter 45,974 mm
B - Bearing/Inner ring width 16,637 mm
C - Outer ring width 12,065 mm
T - Total width 15,494 mm
d1 - External diameter inner ring 34 mm
a - Charge load application point 10,094 mm
rs - Min fillet radius 1,3 mm
r1s - Min fillet radius 1,3 mm
Mass 0,123 kg

PRODUCT PERFORMANCE
C - Dynamic load 29,6 kN
C0 - Static load 34 kN
Cu - Fatigue limit load 4,15 kN
A2 - Rating life coefficient 1
e - Coefficient 0.31
Y0 - Static axial load coefficient 1.08
Y2 - Upper axial load coefficient 1.96
Nlim - Oil lubrication limit speed 11000 tr/min
Nlim - Grease lubrication limit speed 8400 tr/min
Tmin - Min operating temperature -40 C
Tmax - Max operating temperature 120 C

ABUTMENT
da max - Max shoulder diameter IR 26 mm
db min - Min IR shoulder diameter 27,5 mm
Da max - Max shoulder diameter OR 40 mm
Db min - Min OR shoulder diameter 42,5 mm
ra max - Max fillet radius 1,3 mm
r1a - Max fillet radius 1,3 mm