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Linear Bearing Housing Units are complete, ready-to-install assemblies that integrate a standard linear ball bearing into a robust, precision-machined housing. These units are designed for simplicity, durability, and ease of integration into machinery and automation systems. They eliminate the need to press a bearing into a custom-machined housing, significantly reducing design time, manufacturing costs, and assembly complexity.
The primary function of these units is to support and guide a hardened and ground shaft, providing smooth, low-friction linear motion. They are characterized by their split-type design, which allows for easy installation and removal from the shaft without disturbing other components.
Description: The SC series represents the standard and most common type of linear housing unit. It typically features a cast iron or carbon steel housing, offering excellent strength and vibration damping properties. The design includes a split-type housing and a split-type linear ball bearing inside.
Key Features:
Standard Duty: Balanced performance for a wide range of applications.
Split Design: The housing cap can be removed, allowing the unit to be clamped onto the shaft anywhere along its length. This simplifies assembly and maintenance.
Fixed Alignment: The bearing is rigidly seated within the housing, requiring accurate shaft alignment during installation.
Common Model Suffixes:
SC...: Standard unit.
SC...L: A longer version, offering higher load capacity and improved rigidity for a given bore size.
Description: The SCE series is a advanced variant designed to compensate for mounting inaccuracies. The key difference from the SC series is the incorporation of a spherical aligning seat between the outer ring of the bearing and the housing.
Key Features:
Self-Alignment Capability: The internal spherical design allows the bearing to pivot slightly, automatically compensating for angular misalignment of the shaft (typically up to ±2°). This prevents binding and ensures smooth operation even if the mounting surfaces are not perfectly parallel.
Reduced Stress: By accommodating misalignment, it reduces edge loading on the bearing and shaft, extending service life.
Split Design: Retains the convenient split-type housing for easy installation.
Common Model Suffixes:
SCE...: Standard self-aligning unit.
SCE...L: A longer, self-aligning version for higher load capacity.
Description: The SCJ series features a unique open-type design. The housing has a large opening on the bottom and the integrated bearing is also open on its side.
Key Features:
Radial Load Capacity: Specifically designed to support primarily radial loads (loads perpendicular to the shaft).
Shaft Support: The open design allows the unit to act as a simple support block for the shaft, often used in conjunction with other closed units.
Easy Mounting: The open nature makes it exceptionally easy to mount and dismount from the shaft.
Cost-Effective: Often a more economical choice for applications where the full radial support of a closed housing is not required.
For General Applications: Use the standard SC Series. It is the versatile, all-round choice for most machinery.
For Imperfect Mounting Conditions: Use the SCE Series if there is a risk of shaft misalignment. This is critical for long travel lengths or on frames where precision machining is difficult.
For Radial Loads and Simple Support: Use the SCJ Series as an end support or in applications where only radial loads are present and easy access is needed.
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