Through-hole jewel components are a series of products, mainly used in various precision timing instruments, automatic recording instruments, various precision measuring instruments (diameters, dial indicators, etC.), and cylindrical supports for other instruments and meters.

The main types of through-hole series jewel components are: flat straight (olive) hole jewel components, single oil groove flat straight (olive) hole jewel components, double oil groove flat straight (olive) hole jewel components, convex top olive hole jewel components, single oil groove convex top olive hole jewel components, etc.

PRODUCT TYPES:

PRODUCT SPECIFICATIONS:

●Outer diameter(Φ):Φ0.80 ~Φ8.00mm，outer diameter limit deviation:h7 ~ h9 .

●Height(H): 0.125 ~ 20.00mm，height limit deviation: ±0.01 mm

●Inner hole diameter(d):Φ0.08~Φ5.00，inner hole limit deviation: 0.004 ~ 0.02

●Inner hole arc(SR):(2 ~ 3) H

●Oil groove curvature radius(SR1): < product outer diameter, oil groove curvature radius limit deviation +/-0.03

●Protrusion radius of curvature(SR2):> product outer diameter, limit deviation of convex tip curvature radius +/-0.05

●Surface roughness: use surface Rz0.1, Rz0.2, assembly surface and oil sinking surface Rz3.2

TECHNICAL PERFORMANCE PARAMETERS:

●Material: synthetic sapphire/ruby, natural agate, spinel, ceramics, etc.

MATTERS ABOUT ORDER:

●If users need other hard and brittle materials, other specifications, and other precision products, please contact us.