The Inch Linear Shaft is a high-precision guide shaft component designed for internationally standardized equipment, adopting inch-size specifications. It achieves high surface finish and dimensional accuracy through precision grinding. Made of high-strength alloy structural steel, undergo overall quenching and precision grinding, it has excellent straightness and wear resistance. It can perfectly match with inch linear bearings, sliders and other accessories, providing stable linear guide support for various mechanical motion systems. Widely used in imported automation equipment, European and American standard machine tools, medical instruments and transmission mechanisms in the aerospace field, it is a key adaptation component for international equipment maintenance replacement and new equipment research and development.
Product Advantages
Made of high-strength alloy structural steel, undergo overall quenching and precision grinding, it has excellent straightness and wear resistance.
Inch standard, precise adaptation
Strictly manufactured in accordance with ANSI/ASME B3.1 standards, with dimensional tolerance controlled within 0.0002", perfectly matching the inch bearings and mounting holes of imported equipment, solving the adaptation problem between metric and inch systems.
Ultra-high precision, stable operation
Precision grinding process ensures surface roughness as low as Ra 0.4μm, straightness error ≤0.05mm/m, and friction coefficient ≤0.0015 when matched with linear bearings, effectively reducing equipment operating noise and vibration.
High strength and wear resistance
4140 alloy steel undergoes overall quenching treatment, with surface hardness up to HRC58-62. Combined with 5-15μm hard chrome plating, wear resistance is increased by 200%, and service life can reach more than 10,000 hours under continuous operation conditions.
customization, wide application
Provide a full range of inch diameter and length options, support personalized processing such as end threads, shaft shoulders, keyways, etc. 304 stainless steel material options can meet the needs of clean environments such as food and medical care
Product Parameters
| Diameter Specification | 15.875 / 19.05 / 25.4 / 31.75 | Length Range | Product length can be customized |
| Accuracy Class | h6, h7, h8 | Surface Roughnes | Ra 0.4μm - Ra 1.6μm |
| Straightness | ≤0.05mm/m | Material | 4140 Alloy Steel / 304 Stainless Steel |
| Surface Treatment | Hard Chrome Plating (5-15μm thick), Black Oxide Coating, Polishing | Hardness | 4140 Steel: HRC58-62; 304 Stainless Steel: HV200-250 |
| Tolerance Range | Diameter Tolerance: -0.0002"to -0.0005" | End Processing | Flat End, Threaded Hole, Shaft Shoulder (Customizable) |
Application Scenarios
Imported equipment maintenance
Guide rail replacement for Haas machine tools, shaft accessories for DMG machining centers
Automated production lines
Guide shafts for automotive welding robots, linear motion systems for electronic component assembly lines
Medical equipment
Guide shafts for MRI equipment sliding tables, precision transmission components for surgical instruments
Aerospace
Guide systems for UAV test platforms, optical shafts for spacecraft component testing equipment
Installation & Maintenance
1
impurities entering the friction pair
fix with a support seat with concentricity ≤0.02mm, and the distance between the bearing seats at both ends should be controlled within 1/10 of the shaft length to prevent deflection deformation.
2
Maintenance suggestions
Check the surface cleanliness of the optical shaft weekly, and apply special grease (NLGI 2 lithium-based grease is recommended) monthly; when used in a dusty environment, it should be matched with a dust cover. In corrosive environments, 304 stainless steel is preferred and the inspection frequency should be increased.
Order Information
The product can be customized
The Inch Linear Shaft is available in a full range of inch sizes (0.25"-4.0" in diameter) and supports customization of length, end processing, and special surface treatments according to drawings.
Product shipment
Sample delivery cycle is 3-5 working days, bulk order delivery cycle is 7-15 working days, supporting international trade terms such as EXW, FOB, CIF, and providing material certificates and export compliance documents.
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