Type X Sealed 4-Point Contact Thin Section Bearing

Thin Section Sealed Four Point Contact Ball Bearing

Width Range: From 1/4″ (6.35mm) to 1″(25.4mm)

The four-point contact ball bearing is capable of accommodating three distinct load types (radial load, axial load, and moment [torque] load), thereby delivering enhanced rigidity. Building upon the design of open-type constant-section bearings, this configuration integrates seal rings onto both sides of the bearing unit. This structural innovation not only optimizes lubrication performance but also minimizes the required grease fill quantity. Additionally, the seal rings provide effective dust ingress protection, further enhancing operational reliability.

Key Features

Thin section design for space-saving installations

Four-point contact structure supports radial, axial, and moment loads simultaneously

Improved rigidity for precision rotating systems

Double-sided seals reduce contamination risks

Optimized grease retention for longer lubrication life

Reduced grease consumption compared with conventional open bearings

Smooth rotational performance with low running torque

Suitable for lightweight and compact equipment designs

Advantages of the Sealed Four Point Contact Design

The NJHA series thin section bearing provides an effective solution for equipment manufacturers seeking to reduce system size without sacrificing performance. Because the bearing cross-section remains constant while the bore diameter increases, engineers can maintain design consistency across different shaft sizes.

The integrated sealing structure offers additional operational protection in applications exposed to dust, moisture, or fine debris. This feature is particularly valuable in automated production lines, robotics, semiconductor equipment, medical devices, packaging machinery, aerospace systems, and precision positioning platforms.

Compared with traditional bearing arrangements that require multiple bearing combinations to handle complex loads, the four-point contact bearing can often reduce component count and simplify assembly structure. This helps lower overall equipment weight and improves design efficiency.

Typical Applications

Robotics and automation systems

Rotary indexing tables

Medical imaging equipment

Semiconductor manufacturing machines

Aerospace positioning systems

Optical inspection equipment

Lightweight industrial manipulators

Packaging and filling machinery

Radar and communication systems

Why Choose Our Thin Section Bearings

Our engineering team focuses on precision machining, dimensional consistency, and stable bearing performance for demanding industrial applications. Every thin section bearing undergoes strict manufacturing and inspection procedures to ensure reliable operation, smooth rotation, and long service life.

We support customized solutions based on customer operating conditions, including:

Stainless steel material options

Special lubrication requirements

Customized sealing structures

High-speed application optimization

Lightweight design requirements

OEM and interchange replacement production

With stable product quality and flexible manufacturing capability, we help global equipment manufacturers improve system performance while reducing installation space and maintenance costs.

JA Series X-Type Sealed 4-Point Contact Thin Section Bearings

JB Series X-Type Sealed 4-Point Contact Thin Section Bearings

JG Series X-Type Sealed 4-Point Contact Thin Section Bearings

JU Series X-Type Sealed 4-Point Contact Thin Section Bearings