HOME PRODUCTS COMPANY PROFILE THE OFFICES CONTACT US a world of spheres! AFBMA STANDARDS BALL TOLERANCES AFBMA STANDARDS (USA) AFBMA DEGREES Ball diameter variation / SPHERICITY BATCH DIAMETER CHANGE BASE DIAMETER TOLERANCE MAXIMUM INCREASES SURFACE ROUGHNESS INCHES µm INCHES µm INCHES µm INCHES µm INCHES µm 3 0.000003 0.0762 0.000005 0.127 ± 0.00003 0.762 0.000010 0.254 0.0000005 0.0127 5 0.000005 0.127 0.000010 0.254 ± 0.00005 1.27 0.000010 0.254 0.0000008 0.02032 10 0.000010 0.254 0.000020 0.508 ± 0.00010 2.54 0.000010 0.254 0.000001 0.0254 15 0.000015 0.381 0.000030 0.762 ± 0.00010 2.54 0.000010 0.254 0.000001 0.0254 16 0.000016 0.4064 0.000032 0.8128 ± 0.00010 2.54 0.000010 0.254 0.000001 0.0254 24 0.000024 0.6096 0.000048 1.2192 ± 0.00010 2.54 0.000010 0.254 0.000002 0.0508 25 0.000025 0.635 0.000050 1.27 ± 0.00010 2.54 0.000010 0.254 0.000002 0.0508 48 0.000048 1.2192 0.000096 2.4384 ± 0.00020 5.08 0.000050 1.27 0.000003 0.0762 50 0.000050 1.27 0.000100 2.54 ± 0.00030 7.62 0.000050 1.27 0.000003 0.0762 100 0.000100 2.54 0.000200 5.08 ± 0.00050 12.70 0.000100 2.54 0.000005 0.127 200 0.000200 5.08 0.000400 10.20 ± 0.00100 25.40 0.000200 5.08 0.000008 0.2032 300 0.000300 7.62 0.000600 15.24 ± 0.00100 25.40 0.000300 7.62 - - 500 0.000500 12.70 0.001000 25.40 ± 0.00200 50.80 0.000500 12.70 - - 1000 0.001000 25.40 0.002000 50.80 ± 0.00500 127.0 0.001000 25.40 - - 2000 0.002000 50.80 0.004000 101.60 ± 0.00500 127.0 0.002000 50.80 - - 3000 0.003000 76.20 0.006000 152.40 ± 0.00500 127.0 0.003000 76.20 - - Revision n. 4 Quotation request Name and surname* Company Phone Address E-mail* Message I have read and accepted the privacy policy * * Required fields Print the card Download the catalog - INTERNATIONAL STANDARDS +39 02 6178857 | +39 02 66017032 Precision balls Load-bearing balls Rollers and precision rollers 2013 ® RGP INTERNATIONAL S.r.l. Sede legale: via Ugolini 3, 20125 Milano - Italy Sede operativa: via Aldo Palazzi 8/b, 20092 Cinisello Balsamo (MI) - Italy P.I. 09038350154 - C.F. 06195250151 - Reg. Impr. 06195250151 N. REA: MI-1274218 - Cap. soc. 36.400 int. vers. web design