PRODUCTS
SOLID-SELF-LUBRICATION BUSHES-JSL L SHAPE GUIDE RAIL BEARINGS
SOLID-SELF-LUBRICATION BUSHES-JSL series
JSL self-lubricating bearings are a type of wear-resistant component that performs exceptionally well under specific operating conditions, especially in applications involving high temperatures, heavy loads, low speeds, and where it is difficult to form an oil film.
Core Information：
| Characteristic Dimension | Description |
|---|---|
| Product Full Name | JSL L-Type Copper-Based Embedded Self-Lubricating Slider |
| Core Structure | Metal Matrix (mainly high-strength brass ) + Embedded Solid Lubricant (graphite or molybdenum disulfide ) |
| Self-Lubrication Principle | Friction heat causes solid lubricant to form a transfer film on the friction surface, achieving continuous self-lubrication |
| Key Performances | High wear resistance, high temperature resistance (300℃ ), corrosion resistance, high load-carrying capacity (ultimate dynamic load 100N/mm² ) |
| Main Applications | Metallurgical continuous casting machines, rolling equipment, mining machinery, ships, engineering machinery guide rails, etc. |
Features and Advantages of JSL Bearings
🔩
The stable operation of JSL self-lubricating bearings under harsh conditions is primarily due to their material and structural design:
High-strength brass matrix: Provides high hardness and excellent wear resistance. Its hardness (HB210-270) is significantly higher than that of ordinary copper bushings, and its wear resistance is approximately doubled.
Embedded solid lubricant: Typically graphite or molybdenum disulfide (MoS₂). These lubricants are gradually released during friction, forming a stable solid lubricating film on the bearing surface, reducing the coefficient of friction (μ<0.16) and minimizing wear on the shaft.
L-shaped structural design: JSL bearings typically have an L-shaped cross-section. This design facilitates installation and positioning in mechanical guideways, sliders, and other components, providing stable support.
JSL L Shape guide rail standard metric size
Unit:mm
| Standard No. | W | L | Bolt Hole | Sketch | |||||
| a | b | c | d | Size | Q'ty | ||||
| JSL-20×100 | 20 | 100 | 60 | -- | -- | -- | M8 | 2 | A |
| JSL-20×150 | 150 | 55 | 55 | -- | -- | 3 | |||
| JSL-20×200 | 200 | 55 | 50 | 55 | -- | 4 | |||
| JSL-30×100 | 30 | 100 | 60 | -- | -- | -- | M10 | 2 | B |
| JSL-30×150 | 150 | 55 | 55 | -- | -- | 3 | |||
| JSL-30×200 | 200 | 55 | 50 | 55 | -- | 4 | |||
| JSL-30×250 | 250 | 70 | 70 | 70 | -- | 4 | |||
| JSL-45×200 | 45 | 200 | 55 | 50 | 55 | -- | 4 | C | |
| JSL-45×250 | 250 | 70 | 70 | 70 | -- | 4 | |||
| JSL-45×300 | 300 | 65 | 65 | 65 | 65 | 5 | |||
| JSL-45×350 | 350 | 80 | 75 | 75 | 80 | 5 | |||
Main Application Areas
JSL self-lubricating bearings are widely used in the following fields:
Metallurgical equipment: Guideways and supports for continuous casting machines and rolling mills.
Heavy machinery: Mining machinery and large-scale construction machinery.
Transportation: Train supports, ship components.
Industrial Vehicles: Wear-resistant parts for forklifts and other equipment.
Others: Steam turbines, water turbines, injection molding machines, etc.
⚙️ Selection and Application Tips ⚙️
Key Parameters to Consider: When selecting a bearing, pay close attention to the ultimate dynamic load, maximum operating temperature, coefficient of friction, and sliding speed (0.4 m/s for dry friction, 5.0 m/s for oil lubrication).
Consult Specific Models and Specifications: JSL bearings are available in different types (A, B, C, etc.) and various sizes. The appropriate type should be selected based on the installation space, load requirements, and motion mode.
Consider Installation Requirements: The surface roughness of the mounting surface is recommended to be less than Ra 3.2μm, and the roughness of the mating surface is recommended to be less than Ra 1.6μm to ensure optimal performance and lifespan.
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