Standard Slewing Bearing

We provide outer diameter 0.2-10m Slewing bearings with large size, high precision and compact structure, working under heavy load at low speed. The slewing ring can bear axial, radial, tilting moment, etc.

Proven Reliability with Standardized Slewing Ring Solutions

Common Structure

TINVO offers a comprehensive range of standard slewing bearings engineered to meet international industrial benchmarks. Our standardized series are designed for seamless integration into a wide variety of applications, from construction machinery to industrial automation, providing a cost-effective and high-performance rotation solution with shorter lead times.

  • Global Interchangeability: Our standard series are manufactured to be dimensionally interchangeable with major global brands. This makes them the ideal choice for both new equipment designs and the rapid replacement of existing components.

  • Comprehensive Series Range: We supply all major standard configurations, including:
  • Single-Row Four-Point Contact Ball Series:The versatile standard for most axial and radial load requirements.
  • Double-Row Ball Series:Designed for increased load capacity within standard footprints.
  • Cross-Roller Series:Offering high precision and stiffness for compact spaces.
  • Strict Quality Control: Every standard slewing ring undergoes rigorous testing for raceway precision, gear accuracy, and sealing integrity, ensuring long-term durability in demanding environments.

  • Ready-to-Ship Availability: By maintaining a robust inventory of the most common sizes and gear configurations (internal, external, or non-geared), we help you minimize downtime and keep your projects on schedule.

  • Single-row four point contact ball slewing bearings (1-1); 

  • Double-row ball slewing bearings (1-2);

  • Cross cylindrical roller slewing bearings (1-3);

  • Three-row cylindrical roller combined slewing bearings (1-4) 

Single-row four-point contact ball slewing bearings

The single row four-point contact ball slewing bearing is composed of two seat rings. It has a compact structure, light weight, and four-point contact between the steel ball and the arc raceway. It can bear axial force radial force and overturning moment at the same time. The construction machinery of rotary conveyor, welding manipulator, small and medium-sized crane and excavator can be selected.

Cross cylindrical roller slewing bearings

The single-row cross roller slewing bearing is composed of two seat rings. It has a compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are cross-arranged. It can bear axial force, overturning moment, and large radial force at the same time. It is widely used in lifting transportation, construction machinery, and opto-electronic products.

Double-row ball slewing bearings

The double row ball slewing bearing has three seat rings. The steel balls and isolators can be directly arranged into the upper and lower raceways. According to the stress conditions, the upper and lower rows of steel balls with different diameters are arranged. This kind of open assembly is very convenient. The bearing angle of the upper and lower arc raceway is 75 degrees. It can bear a great deal of axial force and overturning moment. When the radial force is greater than 0.l times the axial force, the raceway must be specially designed. The axial and radial dimensions of the double row ball slewing bearing are relatively large and the structure is fastened It is especially suitable for handling tower canes, truck cranes, and other loading machines that require medium or above diameters.

Three-row cylindrical roller combined slewing bearings

Three-row roller slewing bearing has three seat rings, the upper and lower raceways, and the radial raceways are separated, so that the load of each row of roller can be determined accurately. Being able to bear all kinds of loads at the same time, it is the largest of the four structural products with large axial and radial dimensions and firm structure. It is especially suitable for heavy machinery requiring a larger diameter, such as bucket wheel stacker and reclaimer , wheel crane, marine crane, port crane, ladle turret, large tonnage truck crane, etc.

Application

slewing bearing application

Customization

Leave your RFQ and provide more details as in the following table. 

Looking for a complete dimensions table? Contact our team for the latest Slewing Bearing PDF Catalog.

Working Condition Load Table

CategoryWorking ConditionAxial Load (KN)Radial Load (KN)Overturning Moment (KN·m)Speed (rpm)Working Time (%)
StaticMax—————
 Test—————
 ……—————
DynamicMax—————
 Test—————
 Overload—————
 ……—————

Use Parameters

ParameterOptions / UnitValue
Service Lifeh (hours)—
Installation MethodHorizontal: Seat type / Hang type / Vertical / Other—
Usage ModeContinuous / Intermittent / Swing / Other—
Rotating PartsOuter Ring / Inner Ring—
Lubrication MethodGrease / Oil / Other—
SealMain Machine Setting / Bearing Setting—
Bearing Driving Circumferential ForceN (Newton)—
Environment Condition – Humidity%—
Environment Condition – Temperature℃—
Environment Condition – Pollution——
Bearing Operating Temperature℃—
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