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Introduction to Bearings
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Introduction to Bearings

What Are Rod Ends Used For?

What Are Rod Ends Used For?

  • 2020/10/18

Joint bearings and classification Joint bearings are spherical sliding bearings. The basic type is composed of inner and outer rings with spherical sliding spherical contact surfaces.



Depending on its structure and type, it can bear radial load, axial load, or a combined load that acts on both radial and axial directions.



Because the spherical sliding contact area of the spherical plain bearing is large, the inclination angle is large, and also because most of the spherical plain bearing adopts special processing methods, such as surface phosphating, galvanizing, chrome plating or outer sliding surface lining, inserting, spraying, etc.



Therefore, it has a large load capacity and impact resistance, and has the characteristics of corrosion resistance, wear resistance, self-aligning, good lubrication or self-lubricating without lubricating dirt pollution, and it can work normally even if the installation is misplaced. Therefore, joint bearings are widely used in low-speed swing motion, tilt motion and rotational motion.



It is generally used for low-speed swing motion and low-speed rotation, and can also be tilted within a certain angle range. When the support shaft and the shaft housing hole are not centered, it can still work normally. Self-lubricating joint support is used in water conservancy, professional machinery and other industries.


ZZ BEARINGs can Produce different type of Rod End Bearings,such as below numbers:

Bearing No. Dimensions(mm)






Ball a0 Load ratings weight










dia mis. (KN)
≈Kg

d B C1 d1 d2 d3-6g h L1 L2
angle Dynamic Static

H7












POS3 3 6 4.5 5.1 12 M3 26 15 32 7.93 14 1.5 1.8 0.006
POS4 4 7 5.25 6.5 14 M4 30 19 37 9.52 13 2 2.9 0.011
POS5 5 8 6 7.7 16 M5 33 20 41 11.11 13 2.5 3.5 0.012
POS6 6 9 6.75 8.9 18 M6 36 22 45 12.7 13 3.2 4.8 0.019
POS8 8 12 9 10.3 22 M8 42 25 53 15.87 14 5.4 8.9 0.032
POS10 10 14 10.5 12.9 26 M10 48 29 61 19.05 13 7.5 12.5 0.054
POS10FI 10 14 10.5 12.9 26 M10x1.25 48 29 61 19.05 13 7.5 12.5 0.054
POS12 12 16 12 15.4 30 M12 54 33 69 22.22 13 10 15.8 0.085
POS12/F2 12 16 12 15.4 30 M12x1.25 54 33 69 22.22 13 10 15.8 0.085
POS14 14 19 13.5 16.8 34 M14 60 36 77 25.4 16 13 22.1 0.126
POS14F1 14 19 13.5 16.8 34 M14X1.5 60 36 77 25.4 16 13 22.1 0.126

spherical bearings


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