Flat jewels 1 ( Unpolished ) Size & Tolerance of Products Size(mm) Tolerance(mm) D 1.00--30.00 ±0.01 H 0.20--15.00 ±0.01 R 0.10--0.15 ±0.05 Flat jewels 2 ( Single-face polished ) Size & Tolerance of Products Size(mm) Tolerance(mm) D 1.00--30.00 ±0.01 H 0.20--15.00 ±0.02 R 0.10--0.15 ±0.05 Flat jewels 3 ( Double-face polished ) Size & Tolerance of Products Size(mm) Tolerance(mm) D 1.00--30.00 ±0.01 H 0.20--15.00 ±0.02 R 0.10--0.15 ±0.05 Jewel balls 1 ( Unpolished ) Size & Tolerance of Products Size(mm) Tolerance(mm) D 0.80--2.50 ±0.005 D 2.50--5.00 ±0.01 D 5.00--15.00 ±0.01 Jewel balls 2 ( Polished ) Size & Tolerance of Products Size(mm) Tolerance(mm) D 0.80--2.50 ±0.005 D 2.50--5.00 ±0.01 D 5.00--15.00 ±0.01 Jewel cylinders 1 ( Unpolished ) Size & Tolerance of Products Size(mm) Tolerance(mm) D 0.70--15.00 ±0.01 L 0.20--80.00 ±0.05 R 0.10--0.15 ±0.05 Jewel cylinders 2 ( Side polished ) Size & Tolerance of Products Size(mm) Tolerance(mm) D 0.70--15.00 ±0.01 L 0.20--80.00 ±0.05 R 0.10--0.15 ±0.05 Ring jewel Size & Tolerance of Products Size(mm) Tolerance(mm) D 1.00--10.00 ±0.01 H 0.20--8.00 ±0.02 R 0.10--0.15 ±0.05 d 0.15--5.00 +0.02 r 0.05 +0.05 Hole - Vee jewel Size & Tolerance of Products Size(mm) Tolerance(mm) D 1.20--6.00 ±0.01 H 1.00--4.00 ±0.02 R 0.10--0.15 ±0.05 h 0.15--0.55 ±0.05 a 80° ±5° d 0.15--1.00 +0.02 Hole - Cup jewel Size & Tolerance of Products Size(mm) Tolerance(mm) D 1.20--6.00 ±0.01 H 1.00--4.00 ±0.02 R 0.10--0.15 ±0.05 h 0.15--0.55 ±0.05 d 0.15--2.00 +0.02 SR 0.60--5.00 ±0.05 Vee jewel Size & Tolerance of Products Size(mm) Tolerance(mm) D 1.20--6.00 ±0.01 H 1.00--4.00 ±0.02 R 0.10--0.15 ±0.05 h 0.20--0.60 ±0.05 a 80° ±5° SR 0.04--0.20 ±0.02 Cup jewel Size & Tolerance of Products Size(mm) Tolerance(mm) D 1.20--6.00 ±0.01 H 1.00--4.00 ±0.02 R 0.10--0.15 ±0.05 h 0.20--0.60 ±0.05 SR 0.60--5.00 ±0.05   Properties of synthetic corundum

Jewel bearings ....Our factory can supply a great quantity high quality and exact jewel bearings, as synthetic white corundum, ruby, sapphire, glass, microcrystalline glass, natural agate bearing, etc. Jewel bearings have application in apparatus, meter and ball bearing, etc. May customize products. Sapphire & Ruby bearing Sapphire & Ruby bearing Natural agate bearing Microcrystalline glass bearing

 

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