Plain Journal Fluid Film Bearing

Plain Journal Fluid Film Bearing is a radial sliding bearing that supports rotating shafts through a lubricating oil film formed between the shaft journal and bearing surface. It is supplied for OEM production and replacement applications, with dimensions defined by equipment requirements and customer drawings.

Hydrodynamic Lubrication
Shaft rotation draws lubricating oil into the bearing clearance, forming a load-supporting oil film between the journal and bearing surface. This film reduces direct metal contact, friction, and wear.

Metal Shell with Babbitt Lining
The metal shell provides structural support, while the Babbitt alloy lining forms the working surface. Material selection depends on equipment design and operating requirements.

Application-Specific Dimensions and Clearance
Shaft diameter, bearing dimensions, and clearance are determined according to equipment drawings, installation requirements, and operating conditions.

Base and Lining Materials
Carbon steel, cast steel, bronze, and stainless steel are available for bearing bases. Babbitt alloy is used as the working-layer material. Material combinations are selected according to equipment requirements and approved specifications.

Babbitt Lining and Bonding
Centrifugal casting is used to apply the Babbitt alloy lining to the metal substrate. The process is controlled according to applicable manufacturing requirements.

CNC Precision Machining
CNC machining is used to process bearing dimensions and functional surfaces according to approved drawings. Critical dimensions and tolerances are confirmed during technical review.

Turbines and Compressors

Provides radial shaft support in rotating equipment designed for hydrodynamic lubrication.

Motors and Pumps

Supports rotating shafts, with bearing dimensions and clearance configured for the relevant equipment.

Gearboxes and Industrial Machinery

Manufactured for equipment requiring plain journal bearing support, subject to design and operating requirements.

Material Inspection

The metal substrate and Babbitt alloy are inspected as part of incoming material control to verify material suitability for production.

Dimensional and Surface Inspection

Critical dimensions and machined surfaces are checked against specified requirements to confirm dimensional accuracy and installation compatibility.

Babbitt Bonding Inspection

The bond between the Babbitt lining and substrate is inspected to assess lining integrity and bonding quality.

Quality Documentation

Dimensional inspection reports, material certificates, and other relevant quality documents can be provided to support customer review and order acceptance.

Manufacturing to Drawings or Samples

OEM and replacement bearings can be manufactured based on customer drawings, physical samples, or available technical specifications.

Replacement Bearing Assessment

For replacement orders, submitted samples or existing bearing dimensions are reviewed to assess replacement feasibility. Final dimensions, materials, clearance, and installation requirements are confirmed during technical review.

Technical Information for Quotation

For an accurate quotation, please provide available drawings or samples, shaft diameter, bearing dimensions, operating speed, lubrication conditions, installation requirements, and order quantity. Missing information can be reviewed and confirmed during technical assessment.

Small-Batch and Bulk Orders

Sample development, small-batch production, and bulk orders are supported.

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