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Single Row Angular Contact Ball Bearings (General) 70/900 AMB
Single Row Angular Contact Ball Bearings (General) 70/900 AMB

Single Row Angular Contact Ball Bearings (General) 70/900 AMB

The 70/900 AMB is a large single-row angular contact ball bearing with a 900mm bore and 1280mm outer diameter, crafted from sturdy chrome steel. It handles heavy radial loads up to 351,000 lbf and operates at speeds up to 430 RPM.

Its 40° contact angle efficiently manages combined radial and axial loads, while the brass cage ensures smooth rotation. The open design allows for easy lubrication and maintenance.

With a P6 tolerance class, this bearing offers reliable precision for demanding applications. It’s interchangeable with SKF models, making replacements straightforward.

Weighing 665kg, it’s built for heavy-duty use in industrial machinery like large gearboxes or turbines. Compliant with RoHS and REACH standards for safety and environmental care.

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Product Parameters

  • Part Number 70/900 AMB
  • Brand TFL
  • Interchangeable SKF
  • System of Measurement Metric
  • Bearing Type Ball
  • Contact Angle 40°
  • For Load Direction Angular Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 900 mm
  • Bore Dia Tolerance -0.06mm to 0
  • Outer Dia 1280 mm
  • Outer Dia Tolerance -0.09mm to 0
  • Width 170 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 1049 mm
  • External Diameter On Inner Ring (Small Side Face) 978 mm
  • Internal Diameter On Outer Ring 1141 mm
  • Chamfer Dimension 7.5 mm
  • Distance Pressure Point (a) 400 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 351000 lbf
  • Static Radial Load 1102500 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Max Speed 430 rpm
  • Weight 665 kg

Features

How Does 70/900 AMB Bearing Handle Heavy Loads?

70/900 AMB Bearing features a 40° contact angle, optimised for handling heavy angular contact loads.
Its dynamic radial load capacity reaches 351,000 lbf, ensuring robust performance in demanding applications.

The brass cage maintains ball alignment, reducing friction and extending operational life.
With a maximum speed of 430 rpm, it balances durability and precision in large-scale machinery.

Chrome steel rings and balls provide excellent resistance to wear and fatigue.
Its P6 tolerance class ensures consistent performance in precision engineering applications.

Application

Industrial Uses of 70/900 AMB Bearing
The 70/900 AMB Bearing is commonly used in large industrial machinery, such as heavy-duty presses and rolling mills, where its angular contact design handles combined radial and axial loads efficiently.

With a 40° contact angle, it’s well-suited for applications requiring precise alignment, like wind turbine gearboxes or mining equipment. The brass cage adds durability in high-load scenarios.

Why Is 70/900 AMB Bearing Essential in Machinery?
In steel production plants, 70/900 AMB Bearing supports massive rollers, ensuring smooth operation under extreme loads. Its P6 tolerance class provides the precision needed for consistent performance.

The open design allows for easy lubrication, extending service life in harsh environments like cement kilns or paper mills. Its chrome steel construction resists wear even in high-temperature conditions.

Built for Heavy-Duty Use: 70/900 AMB Bearing
This bearing excels in applications like ship propulsion systems, where its large bore (900mm) and static radial load capacity (1,102,500 lbf) handle significant stresses.

The metric sizing makes it interchangeable with major brands, simplifying maintenance in global industrial projects. Its lubricated design reduces friction, ideal for low-speed, high-torque operations.

Automotive vs Aerospace: Applications of 70/900 AMB Bearing
While too large for standard vehicles, 70/900 AMB Bearing fits specialised transport like railway axles or marine engines, where its angular contact design manages directional forces.

In aerospace, it’s occasionally used in ground support equipment, though its weight (665kg) limits airborne applications. The brass cage ensures reliability in vibration-heavy environments.

Q&A

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