Custom Manufacturing Of Precision Ground Case-Hardened Linear Shafting and Guide Bars

Tolerance Guide


In choosing the correct product and specifications for your linear applications, many of the following factors should be taken into account to ensure that the desired performance and suitable degree of precision is achieved.   Unless they are properly anticipated, significant loads and stresses may be generated within a given application which could have potentially damaging effects.
 

Imperial (inch dimensions unless otherwise specified)

Nominal Diameter (Inch)

Class L Class S Class R / Class N Class D (Oversize) Min. Depth of Hardness Weight (lb/inch)
Lower Upper Lower Upper Lower Upper Lower Upper

1/8

.1240 .1245 .1235 .1240 .1248 .1250     .040 .004

3/16

.1865 .1870 .1860 .1865 .1873 .1875     .040 .008

1/4

.2490 .2495 .2485 .2490 .2498 .2500     .040 .014

3/8

.3740 .3745 .3735 .3740 .3748 .3750     .040 .031

1/2

.4990 .4995 .4985 .4990 .4998 .5000     .060 .056

5/8

.6240 .6245 .6235 .6240 .6248 .6250     .060 .087

3/4

.7490 .7495 .7485 .7490 .7498 .7500     .085 .125

7/8

.8740 .8745 .8735 .8740 .8748 .8750     .085 .170

1

.9990 .9995 .9985 .9990 .9998 1.0000 1.0000 1.0003 .085 .223

1-1/8

1.1240 1.1245 1.1235 1.1240 1.1248 1.1250     .085 .282

1-1/4

1.2490 1.2495 1.2485 1.2490 1.1248 1.2500 1.2500 1.2503 .085 .348

1-3/8

1.3740 1.3745 1.3735 1.3740 1.3747 1.3750   .085 .421

1-1/2

1.4989 1.4994 1.4984 1.4989 1.4997 1.5000 1.5000 1.5003 .140 .501

1-5/8

1.6240 1.6245 1.6235 1.6240 1.6247 1.6250     .140 .588

1-3/4

1.7490 1.7495 1.7485 1.7490 1.7497 1.7500 2.0000 2.003 .140 .682

2

1.9987 1.9994 1.9980 1.9987 1.9997 2.0000     .140 .890

2-1/2

2.4985 2.4993 2.4977 2.4985 2.4996 2.5000     .140 1.391

3

2.9983 2.9992 2.9974 2.9983 2.9996 3.0000     .140 2.003

3-1/2

2.4980 3.4990 3.4974 3.4983 3.4996 3.5000     .160 2.726

4

3.9976 3.9998 3.9964 3.9976 3.9996 4.0000     .160 3.560


 

Metric (mm dimensions unless otherwise specified)

Nominal Diameter (Inch)

Class h6 / Class M Class g6 Class g5 Min. Depth of Hardness Weight (lb/inch)
Lower Upper Lower Upper Lower Upper

2

1.992 2.000 1.988 1.996 1.991 1.996 1.0 .001

3

2.992 3.000 2.988 2.996 2.991 2.996 1.0 .003

4

3.992 4.000 3.988 3.996 3.991 3.996 1.0 .006

5

4.992 5.000 4.988 4.996 4.991 4.996 1.0 .009

6

5.991 6.000 5.986 5.995 5.989 5.995 1.0 .013

8

7.991 8.000 7.986 7.995 7.989 7.995 1.0 .022

10

9.989 10.000 9.983 9.994 9.986 9.994 1.0 .035

12

11.989 12.000 11.983 11.994 11.986 11.994 1.6 .050

13

12.989 13.000 12.983 12.994 12.986 12.994 1.6 .058

14

13.989 14.000 13.983 13.994 13.986 13.994 1.6 .068

15

14.989 15.000 14.983 14.994 14.986 14.994 1.6 .083

16

15.989 16.000 15.983 15.994 15.986 15.994 1.6 .088

20

19.987 20.000 19.980 19.993 19.984 19.993 2.2 .138

25

24.987 25.000 24.980 24.993 24.984 24.993 2.2 .216

30

29.984 30.000 29.975 29.991 29.980 29.991 2.2 .311

40

39.984 40.000 39.975 39.991 39.980 39.991 3.5 .553

50

49.981 50.000 49.971 49.990 49.997 49.990 3.5 .862

60

59.981 60.000 59.971 59.990 59.997 59.990 3.5 1.243

80

79.978 80.000 79.966 79.988 79.973 79.988 3.5 2.212

100

99.978 100.000 99.966 99.988 99.973 99.988 4.0 3.455

120

119.975 120.000 119.961 119.986 119.968 119.986 4.0 4.973

150

149.975 150.000 149.961 149.986 149.968 149.986 4.0 7.784

 

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Strongbar (UK) Ltd. 2008