GCr15 Steel Polyhedral Prism 80-150mm Diameter with ±1″ Angle Deviation for Precision Measurement
Price:
3000~5000 USD
MOQ:
1 piece
Delivery Time:
1~3 weeks
Brand:
SPR-ing
Product Description
GCr15 Steel Regular Polyhedron Prism Overview
High-precision polyhedral prisms manufactured from GCr15 high-carbon chromium bearing steel, designed for angle measurement verification and precision positioning applications.
Product Specifications
| Model | Sides | Precision | Angle Deviation | Diameter | Flatness | Surface Roughness |
|---|---|---|---|---|---|---|
| LT-8 | 8 sides | Level 0 / Level I | ±1″ / ±2″ | Φ80mm | 0.03μm / 0.05μm | ≤0.025 |
| LT-12 | 12 sides | Level 0 / Level I | ±1″ / ±2″ | Φ100mm | 0.03μm / 0.05μm | ≤0.025 |
| LT-17 | 17 sides | Level 0 / Level I | ±1″ / ±2″ | Φ100mm | 0.03μm / 0.05μm | ≤0.025 |
| LT-23 | 23 sides | Level 0 / Level I | ±1″ / ±2″ | Φ120mm | 0.03μm / 0.05μm | ≤0.025 |
| LT-24 | 24 sides | Level 0 / Level I | ±1″ / ±2″ | Φ120mm | 0.03μm / 0.05μm | ≤0.025 |
| LT-36 | 36 sides | Level 0 / Level I | ±1″ / ±2″ | Φ150mm | 0.03μm / 0.05μm | ≤0.025 |
Technical Features
- Material: GCr15 high-carbon chromium bearing steel
- Hardness: HRC62-65 for exceptional durability
- Circumscribed circle diameters: Φ80mm to Φ150mm
- Prism thickness: 17-20mm
- Rotating center aperture: Φ25mm
- Surface roughness: Working face Ra ≤ 0.025μm, Datum plane Ra ≤ 0.05μm
- Working angle deviation: ±0.5″ to ±5″ depending on grade
- Flatness tolerance: 0.02μm to 0.1μm across precision grades
Applications & Functionality
These precision polyhedral prisms serve as high-accuracy angle measurement standards for verifying circular dividing instruments including optical dividing heads, dividing tables, and goniometers. They provide essential positioning references for high-precision machining and measurement operations.
Precision Classification
Available in multiple precision grades (00/I/II/III/IV) with corresponding specifications for angle deviation, flatness, and measurement uncertainty to meet diverse application requirements.
Integral vs Non-Integral Degree Prisms
Integral degree prisms (8, 12, 24, 36 sides) verify large periodic errors in circular dividing instruments. Non-integral degree prisms (17, 23 sides) provide comprehensive verification of both large periodic errors and small periodic errors from micrometer systems.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen SPRing Technology Co.,Ltd
Location
Shenzhen baoan shajing rongtai industry part building1 2901
Contact Person
Payne