Bakelite Shingles (Phenolic Resin Shingles) - Multi-Industry Applications

Gluewood shingles(usually refers to phenolic resin laminated materials made ofaxle tile) for its wear resistance,Self-lubricatingIt is widely used in many industries due to its characteristics such as corrosion resistance. The following are its typical application industries and key parameters:

1. General technical parameters

• material (that sth is made of): Phenolic resin matrix composites (with cotton, asbestos or glass fiber reinforcement)
• operating temperature: -30°C ~ +120°C (short-term up to 150°C)
• compressive strength: 50~100 MPa
• coefficient of friction: 0.05~0.15 (under dry friction conditions)
• PV value limit: 0.5~3 MPa-m/s (depending on lubrication conditions)
• water absorption: <1% (can be lower with moisture-proof treatment)

2. Sub-industry application parameters

(1) Hydraulic Turbines/Hydroelectricity Generation

• payloads: Medium to high load (10~30 MPa)
• number of revolutions per minute: Low speed (1~5 m/s)
• medium: Water or weakly alkaline liquid
• specificities: Resistant to abrasion from mud and sand, no external lubrication required.
• case (law): Used for hydraulic turbine guide bearings, gate support shims.

(2) Shipbuilding industry

• payloads: 10~20 MPa
• number of revolutions per minute: Medium speed (2~10 m/s)
• medium: Seawater or freshwater
• specificities: Resistant to salt spray corrosion, avoiding galvanic corrosion of metal shaft tiles.
• case (law): Rudder bearing, propeller shaft support.

(3) Mining Machinery

• payloads: High load (20~50 MPa)
• number of revolutions per minute: Low speed (0.5~3 m/s)
• medium: Dusty, slurry environments
• specificities: Impact-resistant and resistant to harsh working conditions.
• case (law): Crusher and conveyor bearings.

(4) Paper-making machinery

• payloads: 5~15 MPa
• number of revolutions per minute: Medium to high speed (5 to 15 m/s)
• medium: Humid, weakly acidic/alkaline environments
• specificities: Chemical resistance and reduced pulp contamination.
• case (law): Drying cylinder bearings, calender shims.

(5) Food processing

• payloads: Low to medium load (5~10 MPa)
• number of revolutions per minute: Medium speed (2~8 m/s)
• medium: Food grade lubricant or water
• specificities: FDA compliant and non-contaminating.
• case (law): Mixer, conveyor belt bearings.

3. Selection considerations

• lubrication condition: Gumwood shingles are preferred for dry friction or water lubrication; oil lubrication scenarios require verification of compatibility.
• tolerance of fit: Usually clearance fit with metal shaft (0.1~0.3% shaft diameter).
• Maintenance requirements: Check the amount of wear regularly (recommended wear limit ≤ 1.5 mm).