TAOMSUN flat straight-hole ruby bearings are universal precision support components for instruments, meters and precision equipment. Manufactured from synthetic corundum (ruby/sapphire), Mohs hardness 9, surface roughness ≤0.01μm, friction coefficient ≈0.14. The flat straight-hole design is simple and reliable, fitting a wide range of standard precision applications including precision instruments, automation equipment and measuring devices. Outside diameter Φ0.8-6.0 mm, custom sizes available. ISO 9001 certified. Overseas sales and technical support provided by METICULAB (Korea).

TAOMSUN Flat Straight-Hole Ruby Bearing – General-Purpose Precision Support for Instruments & Automation

Brand: TAOMSUN ｜ Origin: China ｜ Korea Sales / Technical Support: METICULAB (Korea) ｜ ISO 9001 · Precision Manufactured

The TAOMSUN Flat Straight-Hole Ruby Bearing is a general-purpose precision support component designed for instruments, meters, and precision equipment. Manufactured from synthetic ruby (corundum) — Mohs hardness 9, second only to diamond — it delivers exceptional wear resistance, high-temperature tolerance, and mechanical strength. The flat straight-hole design offers a simple, reliable structure that accommodates a wide range of standard precision applications. Available in custom dimensions with full inspection documentation.

Bearing Overview

Straight-Hole Structure

Synthetic Ruby Material

Custom Dimensions

Quality Inspection

Q: What is the difference between flat straight-hole and flat arc-hole bearings?
   A: The flat straight-hole bearing features a simple, straight inner hole — ideal for general-purpose applications where stress concentration is not a primary concern. The arc-hole design is optimized for reducing stress at the hole edge, offering longer service life in high-frequency or high-load scenarios. The straight-hole is the most cost-effective option.

Q: Is this bearing suitable for high-speed applications?
   A: Yes. With a friction coefficient of approximately 0.14 against steel and ultra-smooth surface finish, this bearing performs well in moderate to high-speed applications. For extreme high-speed operations, we recommend our groove-type or arc-hole designs.

Q: What is the coefficient of friction for this bearing?
   A: The coefficient of friction against steel is approximately 0.14, ensuring smooth, low-friction operation.

Q: What are the standard dimensional ranges available?
   A: Outer diameter Φ0.8–6.0mm, thickness 0.3–2.0mm, and inner hole Φ0.15–3.0mm. Custom dimensions are available upon request.

Q: Can you manufacture custom dimensions?
   A: Yes. TAOMSUN supports custom outer diameters, thicknesses, and hole diameters. Please submit your CAD drawing or specifications for a tailored quote.

Q: What is the typical lead time for orders?
   A: Standard stock items ship within 3–5 business days. Custom specifications typically require 2–4 weeks depending on complexity and volume.

TAOMSUN is a precision component manufacturer with deep expertise in hard material processing and bearing technology. Operating under ISO 9001 quality management, we specialize in synthetic ruby and sapphire bearings, precision shafts, and high-performance mechanical components for instrumentation, automation, and aerospace sectors. Our core team brings decades of experience from the Japanese precision engineering industry, ensuring exceptional quality and reliability in every product.      🌏 Overseas sales and technical support is provided by METICULAB™ (Korea).