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Single Row Cylindrical Roller Thrust Bearings 812/670 M

Single Row Cylindrical Roller Thrust Bearings 812/670 M

The 812/670 M is a single-row cylindrical roller thrust bearing with a large 670mm bore and 900mm outer diameter, built from sturdy chrome steel. It handles heavy thrust loads up to 1282500 lbf and operates smoothly at speeds up to 300 RPM.

Its machined brass cage enhances durability, while the precise tolerances ensure reliable performance under stress. The bearing works in temperatures from -30°C to 110°C, making it suitable for varied environments.

This model is interchangeable with SKF bearings, offering a practical replacement option. Ideal for heavy machinery like industrial presses or large gearboxes where high thrust loads are common.

Weighing 335kg, it’s designed for robust applications. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 812/670 M
  • size 670 mm x 900 mm x 180 mm
  • Brand TFL
  • Interchangeable brand SKF
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • Bearing Type Roller
  • For Load Direction Thrust
  • Number of Rows 1
  • Bore Dia 670 mm
  • Bore Dia Tolerance -0.075mm to 0
  • Outer Dia 900 mm
  • Outer Dia Tolerance -0.100mm to 0
  • Width 180 mm
  • Height Tolerance -0.75mm to +0.07mm
  • Outside Diameter Shaft Washer 892 mm
  • Bore Diameter Housing Washer 678 mm
  • Height Shaft Washer 52.5 mm
  • Chamfer Dimension Housing Washer r1,2 (min.) 6 mm
  • Washer Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Machined brass cage
  • Dynamic Radial Load 1282500 lbf
  • Static Radial Load 6862500 lbf
  • Max Speed 300 rpm
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 335 kg
  • Shaft Washer IW-812/670
  • Housing Washer OW-812/670
Single Row Cylindrical Roller Thrust Bearings 812/670 M dimension drawing
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Features

Why Choose 812/670 M Bearing for Precision Tasks?

812/670 M Bearing features a machined brass cage that ensures precise alignment of cylindrical rollers, enhancing load distribution.
Its chrome steel construction provides durability and resistance to wear, even under heavy thrust loads.

With a dynamic radial load capacity of 1,282,500 lbf, 812/670 M Bearing handles demanding applications with ease.
The bearing operates smoothly within a temperature range of -30° to 110°C, making it versatile for various environments.

Designed for efficiency, 812/670 M Bearing has a maximum speed of 300 rpm, balancing performance and longevity.
Its precise tolerances and robust materials ensure reliable operation in industrial settings.

Application

Industrial Uses of 812/670 M Bearing
812/670 M Bearing is commonly used in heavy machinery like rolling mills and hydraulic presses, where its large size and high load capacity are essential. The machined brass cage ensures smooth operation even under extreme thrust loads.

In wind turbine applications, 812/670 M Bearing handles the axial forces generated by rotor blades, thanks to its robust chrome steel construction. Its metric dimensions make it compatible with many European-designed systems.

For mining equipment, 812/670 M Bearing provides reliable performance in conveyor systems and crushers, where durability is key. The wide temperature range allows it to function in harsh environments without compromising efficiency.

What Makes 812/670 M Bearing a Preferred Choice?
812/670 M Bearing stands out in steel production lines due to its ability to withstand massive static loads up to 6862500 lbf. The precision tolerances ensure consistent performance in high-stress conditions.

In marine applications, 812/670 M Bearing is used in propeller shafts where its corrosion-resistant materials and large diameter are advantageous. The 300 rpm speed rating suits most ship propulsion systems perfectly.

For bridge construction machinery, 812/670 M Bearing supports heavy lifting operations with its exceptional load distribution. The 180 mm width provides stability during prolonged use in civil engineering projects.

Built for Heavy-Duty Use: 812/670 M Bearing
812/670 M Bearing excels in paper manufacturing equipment, handling the axial loads of large drying cylinders. Its 900 mm outer diameter offers ample surface area for even load distribution.

In cement plant machinery, 812/670 M Bearing’s chrome steel rollers withstand the abrasive dust environments common in this industry. The 670 mm bore size accommodates substantial shaft diameters typically found in rotary kilns.

For power generation turbines, 812/670 M Bearing maintains precise alignment under varying operational stresses. The -30° to 110 °C temperature range ensures reliability during both startup and peak performance periods.

Light-Duty vs Heavy-Duty: Best Uses for 812/670 M Bearing
While unsuitable for small appliances, 812/670 M Bearing shines in industrial gearboxes where its 335 kg weight indicates serious load-bearing capability. The single-row cylindrical design simplifies maintenance in these applications.

In comparison to smaller bearings, 812/670 M Bearing is specifically designed for massive construction equipment like tunnel boring machines. Its 892 mm shaft washer diameter provides the necessary stability for such demanding tasks.

For railway maintenance vehicles, 812/670 M Bearing offers better performance than standard options when dealing with the axial loads from heavy lifting mechanisms. The 6 mm chamfer dimension prevents edge stress concentrations during operation.

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