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stell balls

 Our product specifications are ball bearings 0.5-180 mm, carbon steel ball 0.5-150 mm, stainless steel 0.8-80 mm, while custom specifications of the various special stainless steel ball, Copper Balls, the ball flying saucer, for the majority of users To provide good quality durable, complete specifications and reasonable price of steel balls.

Material Comparision Table

Material Comparision Table
Country Standard Chrome SteelCarbon SteelStainless Steel
China YB GCr15 10 15 45 85 1Cr18Ni9 0Cr19Ni9 0Cr17Ni12Mo2 3Cr13 9Cr18
USA AISI E52100 1010 1015 1045 1084 302 304 316 420 440C
Japan JIS SUJ2 S9CK S15CK S45C SUP3 SUS302 SUS304 SUS316 SUS420J2 SUS440C
Germany DIN 100Cr6 CK10 CK15 CK45   X12CrNi188 8 X5CrNi189 X5CrNiMn18 X30Cr13  
1.3505         1.43 1.4301 10(1.4401) 1.4028  

Grade of Tolerance and Technical Parameters

Grade Variation of ball diameter Deviation of ball shape Coarseness of ball surface Variation of ball diameter Fundamental tolerance of diameter
Vdws △Sph Ra Vdwl Tdn
um
G10 0.25 0.25 0.025 0.5 *
G16 0.4 0.4 0.032 0.8 *
G20 0.5 0.5 0.05 1 *
G28 0.7 0.7 0.05 1.5 *
G40 1 1 0.08 2 *
G60 1.5 1.5 0.1 3 *
G100 2.5 2.5 0.125 5 ±12.5
G200 5 5 0.2 10 ±25
G500 13 13 * 25 ±50
G1000 25 25 * 50 ±125
*(Said don’t)

Vibration, Normal Specified Value, Single Specified Value of Diameter of Batch Balls

Grade Vibration of Diameter of Batch Balls Spacing Interval of Specified Value Normal Specified Value Spacing Interval of Single Specified Value Single Specified Value
um
G10 0.5 1 -9,…-1,0,+1,…+9 0.2 -0.4,-0.2,0,+0.2,+0.4
G16 0.8 2 -10,…-2,0,+2,…,+10 0.4 -0.8,-0.4,0,+0.4,+0.8
G20 1 2 -10,…,-2,0,+2,…,+10 0.4 -0.8,-0.4,0,+0.4,+0.8
G28 1.4 2 -12,…-2,0,+2,…,+12 0.4 -0.8,-0.4,0,+0.4,+0.8
G40 2 4 -16,…-4,0,+4,…,+16 0.8 -1.6,-0.8,0,+0.8,+1.6
G60 3 5 -20,…,-5,0,+5,…,+20 1 -2,-1,0,+1,+2
G100 5 10 -40,…,-10,0,+10,…,+40 2 -4,-2,0,+2,+4
G200 10 15 -60,…,-15,0,+15,…,+60 3 -6,-3,0,+3,+6

DIMENSIONAL CONVERSION CHART

Inch Fractions mm Inch Fractions mm  Inch Fractions mm  Inch Fractions mm
1/64 0.397 19/64 7.541 - 19.000 - 40.000
- 0.500 5/16 7.938 3/4 19.050 1 5/8 41.275
1/32 0.794 - 8.000 25/32 19.844 1 11/16 42.862
- 1.000 - 8.500 - 20.000 1 3/4 44.450
3/64 1.190 11/32 8.731 13/16 20.637 - 45.000
- 1.200 - 9.000 - 21.000 1 13/16 46.037
- 1.500 23/64 9.128 27/32 21.431 1 7/8 47.625
1/16 1.588 - 9.500 - 22.000 1 15/16 49.212
5/64 1.984 3/8 9.525 7/8 22.225 - 50.000
- 2.000 25/64 9.922 - 23.000 2 50.800
3/32 2.381 - 10.000 29/32 23.019 2 1/8 53.975
- 2.500 12/32 10.319 15/16 23.812 - 55.000
7/64 2.778 - 11.000 - 24.000 2 1/4 57150
- 3.000 7/16 11.112 31/32 24.606 - 60.000
1/8 3.175 - 11.500 - 25.000 2 3/8 60.235
- 3.500 29/64 11.509 1 25.400 2 1/3  63.500
9/64 3.572 15/32 11.906 - 26.000 - 65.000
5/32 3.969 - 12.000 1 1/16 26.987 2 5/8 66.675
- 4.000 31/64 12.303 - 28.000 2 3/4 69.850
11/64 4.366 1/2 12.700 1 1/8 28.575 - 70.000
- 4.500 - 13.000 - 30.000 2 7/8 73.025
3/16 4.763 17/32 13.494 1 3/16 30.162 - 75.000
- 5.000 - 14.000 1 1/4 31.750 3 76.200
- 5.500 9/16 14.288 - 32.000 3 1/8 79.375
7/32 5.556 - 15.000 1 5/16 33.337 - 80.000
15/64 5.953 19/32 15.801 - 34.000 3 1/4 82.550
- 6.000 5/8 18.875 1 3/8 34.925 - 85.000
1/4 6.350 - 16.000 - 35.000 3 1/2 88.9000
- 6.500 21/32 16.669 - 36.000 - 90.000
17/64 6.747 - 17.000 1 7/16 36.512 - 95.000
- 7.000 11/16 17.462 - 38.000 3 3/4 95.250
9/32 7.144 - 18.000 1 1/2 38.100 - 100.000
- 7.500 23/32 18.256 1 9/16 39.687 4 101.600

 

 

                                   
Update Time::2012-8-15