SI5T/K Self-lubricating Rod End Bearing M5 Female Thread Rose Joint

Material & Environmental Specifications

1. Rod end housing: Carbon steel with zinc plating for rust prevention
2. Inner ball stud: GCr15 bearing steel, quenched to HRC58-64, hard chrome plated spherical surface
3. Sliding friction pair: Steel + PTFE composite liner, oil-free self-lubricating
4. Operating temperature: -30℃ ~ +80℃, peak short-term temperature up to 120℃
5. Motion type: Low-speed oscillation, small-angle tilt self-alignment. Not suitable for high-speed rotation.
   
   

Product Advantages

• Maintenance-free Self-lubrication: PTFE composite liner, no greasing or grease nipple required. Ready for use right after installation to cut maintenance work significantly.
• Self-aligning Compensation: Maximum swing angle of 13°, compensates installation coaxial error and allows shaft misalignment to release assembly stress.
• Compact & Lightweight: Miniature size with weight of only 16g, ideal for lightweight mechanism design.
• Stable Load Capacity: Handles radial, axial and combined alternating loads. Quenched ball stud delivers good wear resistance and impact resistance.
• Corrosion Resistance & Easy Assembly: Zinc coated surface against corrosion. Female thread for simple mounting. Right-hand SI5T/K and left-hand SIL5T/K are available to adjust link length via right & left thread pairing.
• Sealed Structure: Better sealing compared with standard PHS5 greaseless type, suitable for equipment where lubricant refilling is inconvenient.

Limitations: Only for low-speed oscillating applications, not for continuous high-speed rotation. PTFE liner is not recommended for extreme high pressure or heavy abrasive dust working conditions.

Series Specification

SI…T/K is a full range of self-lubricating rod end bearings (rose joints). Full series sizes:

• SI5T/K M5×0.8
• SI6T/K M6×1.0
• SI8T/K M8×1.25
• SI10T/K M10×1.5

Suffix L = Left-hand thread (e.g. SIL5T/K); stainless steel version available on request (suffix X).

Typical Applications

SI5TK miniature light-load rose joints are commonly used for connecting rods and push-pull mechanisms:

1. Automation Equipment: Small actuators, cylinder tie rods, micro servo push rods, adjustable connecting rods
2. Robots & Models: Educational robots, robotic arm joints, RC aircraft, race car model linkages
3. Light Packaging Machinery: Small oscillating mechanisms, adjustable pitch tie rods
4. Test Fixtures & Jigs: Adjustable supports, low-thrust push-pull mechanisms
5. General Machinery: Small hydraulic cylinder ends, fitness equipment linkages, test machines

Selection Note: This bearing is designed for low-speed reciprocating oscillation and shall not be used for high-speed rotation. For safety margin, the actual working load is recommended to be kept within 1/3 of the static rated load.