Pneumatic Fish Eye Rod End Joint Bearing Male Thread M6 M8 M10 M12 Carbon Steel Zinc Plated for Cylinder Linkage

• Customization: Available
• Rolling Element: Single Row
• Structure: Rod End
• Model NO.: OEM
• Material: OEM
• Load Direction: Radial Spherical Plain Bearing
• Add Lubricant: Self-lubricating
• Outer Structure: Whole Outer Ring
• Rod End: Rod End
• Thickness: OEM
• Model: OEM
• Application: Engineering Hydraulic Cylinder, Forging Machine, Construction Machinery, Automation Equipment, Automobile Shock Absorber, Water Conservancy Machinery
• Transport Package: Sandard
• Specification: OEM
• Trademark: OEM
• Origin: China
• Package Size: 1.00cm * 1.00cm * 1.00cm
• Package Gross Weight: 1.000kg
• Lead Time: 30 days (1 - 10000 Pieces) ; To be negotiated ( > 10000 Pieces)

Product Description

Product Overview

Rod End Bearing (Ball Joint Rod / Spherical Rod End)

Rod end bearings, also known as ball joint rods or spherical rod ends, are mechanical articulating joints designed to transmit motion and force between components while accommodating misalignment. They consist of a spherical plain bearing housed in a metal body with an integral threaded shank.

Rod ends are widely used in pneumatic cylinders, automation equipment, packaging machinery, textile machines, conveyors, agricultural machinery, and general mechanical linkages where angular movement and reliable load transmission are required.

These components allow both angular rotation and limited axial movement, helping to reduce stress concentration, vibration, and installation misalignment in dynamic systems.

 

Key Features

• Accommodates angular misalignment and oscillating motion

• High load capacity with compact structure

• Smooth rotation and stable transmission

• Available in right-hand and left-hand threads

• Optional lubrication hole and dust cover

• Long service life and easy installation

 

Material Options

Component	Material
Rod Body	Carbon Steel / Alloy Steel / Stainless Steel 304 / 316
Ball	Bearing Steel or Stainless Steel
Surface Finish	Zinc Plated / Black Oxide / Polished Stainless

 

Thread Types

• Metric thread: M4 - M24

• Inch thread: 1/4" - 5/8" UNF

• Thread direction: Right-hand (RH) / Left-hand (LH)

 

Typical Applications

• Pneumatic and hydraulic cylinders

• Linear motion systems

• Automation and robotic arms

• Packaging and filling machines

• Agricultural and construction machinery

 

Standard Specification Table (Metric Type)

Model	Thread Size	Bore Diameter (mm)	Ball OD (mm)	Thread Length (mm)	Overall Length (mm)
SI4	M4 × 0.7	4	8	10	25
SI5	M5 × 0.8	5	10	12	30
SI6	M6 × 1.0	6	12	14	35
SI8	M8 × 1.25	8	16	18	45
SI10	M10 × 1.5	10	18	22	55
SI12	M12 × 1.75	12	22	26	65
SI14	M14 × 2.0	14	26	30	75
SI16	M16 × 2.0	16	30	32	85
SI20	M20 × 2.5	20	36	38	105

Note: Dimensions may vary slightly depending on material and manufacturer. Custom sizes are available upon request.

 

Available Variants

• SI Series - Right-hand thread

• SIL Series - Left-hand thread

• POS / SA Type - Heavy-duty design

• With grease nipple

• With rubber dust cover

 

Load Capacity (Reference)

Thread Size	Radial Load (kN)
M6	3.5
M8	7.5
M10	12
M12	18
M16	28