Home » 30311U NTN Taper Roller Bearing 55x120x31.5mm
NTN Metric hardened steel taper roller bearing priced cup & cone together 55mm inside x 120mm outside x 31.5mm width
NTN Metric hardened steel taper roller bearing priced cup & cone together 55mm inside x 120mm outside x 31.5mm width
NTN Metric hardened steel taper roller bearing priced cup & cone together 55mm inside x 120mm outside x 31.5mm width
NTN Metric hardened steel taper roller bearing priced cup & cone together 55mm inside x 120mm outside x 31.5mm width

30311U NTN Taper Roller Bearing 55x120x31.5mm

In stock
SKU: 30311U-NTN
NTN Metric hardened steel taper roller bearing priced cup & cone together 55mm inside x 120mm outside x 31.5mm width
£44.40 inc.VAT
£37.00 exc.VAT
FREE UK MAINLAND DELIVERY ON ORDERS OVER £50

Product details

  • Vendor NTN
  • SKU 30311U-NTN
  • Inside diameter (d) 55mm
  • Outside diameter (D) 120mm
  • Width (B) 31.5mm
Description Delivery Returns
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 55 mm
D - External diameter 120 mm
B - Bearing/Inner ring width 29 mm
C - Outer ring width 25 mm
T - Total width 31,5 mm
d1 - External diameter inner ring 85,5 mm
a - Charge load application point 24,5 mm
rs - Min fillet radius 2,5 mm
r1s - Min fillet radius 2 mm
Mass 1,65 kg
ISO 355 reference T2FB055

PRODUCT PERFORMANCE
C - Dynamic load 172 kN
C0 - Static load 179 kN
Cu - Fatigue limit load 21,8 kN
A2 - Rating life coefficient 1
e - Coefficient 0.35
Y0 - Static axial load coefficient 0.96
Y2 - Upper axial load coefficient 1.74
Nlim - Oil lubrication limit speed 4400 tr/min
Nlim - Grease lubrication limit speed 3300 tr/min
Tmin - Min operating temperature -40 C
Tmax - Max operating temperature 120 C

ABUTMENT
da max - Max shoulder diameter IR 71 mm
db min - Min IR shoulder diameter 67 mm
Da min - Min shoulder diameter OR 104 mm
Da max - Max shoulder diameter OR 110 mm
Db min - Min OR shoulder diameter 111 mm
Ca - Min clearance 4 mm
Cb - Min clearance 6,5 mm
ra max - Max fillet radius 2 mm
r1a - Max fillet radius 2 mm