M81820/4 & M81820/1 Aerospace Spherical Plain Bearing with Extended Life and Self-Lubricated

• Customization: Available
• Transport Package: Single Box
• Specification: M81820
• Model NO.: M81820
• Origin: Luoyang
• HS Code: 84821030
• Production Capacity: 10000PCS

Product Description

MONTON Bearing can supply many types metal-to-metal and self-lubricating plain bearings to the aerospace industry. These bearings can meet to , GJB,NAS, AECMA, and customer design performance standards. SELF-LUBRICATING BEARINGS Self-lubricating bearings are available in spherical, journal,flange journal, and rod end bearing configurations. They were
originally developed to eliminate the need for re-lubrication, to provide lower torque, and to solve application problems where conventional metal-to-metal bearings would not perform
satisfactorily; such as with high frequency vibration. 

The liner systems for self-lubricating bearings do not require supplemental lubrication. The PTFE fibers in the liner act as the lubricant. When a bearing is operated, the pressure and movement of the inner ring shears PTFE from the liner system. As the bearing operates, the PTFE is burnished into the metal and also into the liner surfaces, thereby reducing the coefficient of friction. After the coefficient of friction becomes sufficiently low, no further PTFE is sheared from the liner. Through continued use, some PTFE on the surfaces may exit the bearing. When this occurs, friction increases and more PTFE is sheared from the liner and deposited on the ring and liner surfaces. 

Self-lubricating spherical plain bearings Typically, inner rings (balls) used in SAE/Military Standards are 440C or PH13-8Mo, and outer rings (races) are 17-4PH. High temperature materials are also available. 

Self-lubricating journal bearings Standard materials for SAE standards include 17-4PH CRES steel and 7075-T6 and 2024-T851 aluminum alloys. 

Rod ends have the bodies manufactured from 17-4PH or PH13-8Mo steel or cadmium plated 4340 steel.

General features spherical plain bearings 
Outer Ring
The outer ring is swag over the ball to provide maximum race to ball conformity. The outer ring
may contain a lubrication groove and holes to accommodate re-lubrication needs. Race can be
furnished with face grooves or chamfer for staking either the race or the housing.

Inner Ring
A fully hardened ball provides strength when clamped in the application.
Ball may contain a lubrication groove and holes to accommodate re-lubrication needs.
Materials
Various materials are used in Swag spherical bearings. Races: 17-4PH, 15-5PH, Aluminum Bronze, AISI303,Inconel-718. Aluminum.
Balls
440C, 52100 chrome plated, PH13-8Mo, Stellite, Beryllium Copper, Aluminum.


General codes:
SELF-LUBRICATED SPHERICAL PLAIN BEARING, NARROW
MS14104 & MS14101
MS14102 & MS14103
M81820/4 & M81820/1

SELF-LUBRICATED SPHERICAL PLAIN BEARING, LINED BORE, WIDE
M81820/2 & M81820/3
MS21233 & MS21232
MS21231 & MS21230

METAL-TO-METAL SPHERICAL BEARINGS
MS21154B 
MS21155B

Our company has professional sales and technical engineers who are responsible for providing users with technical consultation, technical services and product technical training on precision bearing data and installation and use. Perfect pre-sales, in-sales and after-sales services constitute a guarantee system for high-quality services, providing users with reliable quality bearing products, creating a good user experience and rich benefits for every customer.

If you have any questions about products and services, please contact the company's service department directly.