Grade | Nominal diameter | Limit deviations | Ball diameter | Roundness | Surface roughness | Lot diameter variation | |
From | To | VDws(μm) | tDws(μm) | Ra(μm) | VDwL/A(μm) | ||
G3 | - | 12.7 | 0.08 | 0.08 | 0.010 | 0.13(L) | |
G5 | - | 12.7 | ±5.63 | 0.13 | 0.13 | 0.014 | 0.25(L) |
G10 | - | 25.4 | ±9.75 | 0.25 | 0.25 | 0.020 | 0.50(L) |
G16 | - | 25.4 | ±11.4 | 0.40 | 0.40 | 0.025 | 0.80(L) |
G20 | - | 38.1 | ±11.5 | 0.50 | 0.50 | 0.032 | 1.0(L) |
G28 | - | 50.8 | ±13.7 | 0.70 | 0.70 | 0.050 | 1.4(L) |
G40 | - | 100 | ±19.0 | 1.0 | 1.0 | 0.060 | 2.0(L) |
G80 | - | 100 | ±14.0 | 2.0 | 2.0 | 0.10 | 4.0(A) |
G100 | - | 150 | ±47.5 | 2.5 | 2.5 | 0.10 | 5.0(L) |
G200 | - | 150 | ±72.5 | 5.0 | 5.0 | 0.15 | 10(L) |
G300(1) | - | 25.4 | ±70.0 | 10 | 10 | 0.20 | 20(A) |
G300(3) | 25.4 | 50.8 | ±105 | 15 | 15 | 0.20 | 30(A) |
G300 | 50.8 | 75 | ±140 | 20 | 20 | 0.20 | 40(A) |
G500(4) | - | 25.4 | ±75 | 25 | 25 | - | 50(A) |
G500 | 25.4 | 50.8 | ±112.5 | 25 | 25 | - | 75(A) |
G500 | 50.8 | 75 | ±150 | 25 | 25 | - | 100(A) |
G500 | 75 | 100 | ±187.5 | 32 | 32 | - | 125(A) |
G500 | 100 | 125 | ±225 | 38 | 38 | - | 150(A) |
G500 | 125 | 150 | ±252.5 | 44 | 44 | - | 175(A) |
G600(4) | Tutti | Tutti | ±200 | - | - | - | 400(A) |
G700(4) | Tutti | Tutti | ±1000 | - | - | - | 2000(A) |