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RC7; Free Running Fits: This kind of fits are intended to use where accuracy is not essential. It is suitable for great temperature variations. This fits are suitable to use without any special requirements for precise guiding of shafts.


RC8 and RC9; Loose Running Fits: This kind of fits are intended for use where wide commercial tolerances may be required on the shaft. With this fits, The parts with great clearances with having great tolerances. Loose running fits exposed to effects of corrosion, contamination by dust and thermal or mechanical deformations.


Graphical Representation of ANSI B4.1-1967 Running and Sliding Fits Table




Running and Sliding Limits and Fits For Cylindrical Parts
[(ANSI B4.1-1967,R1987)]


All limits shown in chart below are in thousandths of an inches. Symbols H5,g5, etc. are Shaft and Hole designations used in American-British-Canadian System (ABC). Limits for Shaft and Hole are applied algebraically to the Nominal (basic) size to obtain the limits of the size for the parts. All data given in bold in the chart below are in accordance with ABC agreements. The values given under the "Clearance Limits Column" represent min and max amounts of clearance resulting from application of standard tolerance limits.


VALUES SHOWN BELOW ARE IN THOUSANDTHS OF AN INCHES
Nominal (Basic) Size
Ranges (Inches)
Class RC1Class RC2Class RC3 Class RC4
Clearance
Limits
Standard Tolerance LimitsClearance
Limits
Standard Tolerance Limits Clearance
Limits
Standard Tolerance LimitsClearance
Limits
Standard Tolerance Limits
OverToHole
H5
Shaft
g4
Hole
H6
Shaft
g5
Hole
H7
Shaft
f6
Hole
H8
Shaft
f7
00.120.1
0.45
+0.2
0
-0.1
-0.25
0.1
0.55
+0.25
0
-0.1
-0.3
0.3
0.95
+0.4
0
-0.3
-0.55
0.3
1.3
+0.6
0
-0.3
-0.7
0.120.400.15
0.5
+0.2
0
-0.15
-0.3
0.15
0.65
+0.3
0
-0.15
-0.35
0.4
1.12
+0.5
0
-0.4
-0.7
0.4
1.6
+0.7
0
-0.4
-0.9
0.240.400.2
0.6
+0.25
0
-0.2
-0.35
0.2
0.85
+0.4
0
-0.2
-0.45
0.5
1.5
+0.6
0
-0.5
-0.9
0.5
2.0
+0.9
0
-0.5
-1.1
0.400.710.25
0.75
+0.3
0
-0.25
-0.45
0.25
0.95
+0.4
0
-0.25
-0.55
0.6
1.7
+0.7
0
-0.6
-1.0
0.6
2.3
+1.0
0
-0.6
-1.3
0.711.190.3
0.95
+0.4
0
-0.3
-0.55
0.3
1.2
+0.5
0
-0.3
-0.7
0.8
2.1
+0.8
0
-0.8
-1.3
0.8
2.8
+0.2
0
-0.8
-1.6
1.191.970.4
1.1
+0.4
0
-0.4
-0.7
0.4
1.4
+0.6
0
-0.4
-0.8
1.0
2.6
+1.0
0
-1.0
-1.6
1.0
3.6
+1.6
0
-1.0
-2.0
1.973.150.4
0.2
+0.5
0
-0.4
-0.7
0.4
1.6
+0.7
0
-0.4
-0.9
1.2
3.1
+1.2
0
-1.2
-1.9
1.2
4.2
+1.8
0
-1.2
-2.4
3.154.730.5
1.5
+0.6
0
-0.5
-0.9
0.5
2.0
+0.9
0
-0.5
-1.1
1.4
3.7
+1.4
0
-1.4
-2.3
1.4
5.0
+2.2
0
-1.4
-2.8
4.737.090.6
1.8
+0.7
0
-0.6
-1.1
0.6
2.3
+1.0
0
-0.6
-1.3
1.6
4.2
+1.6
0
-1.6
-2.6
1.6
5.7
+2.5
0
-1.6
-3.2
7.099.850.6
2.0
+0.8
0
-0.6
-1.2
0.6
2.6
+1.2
0
-0.6
-1.4
2.0
5.0
+1.8
0
-2.0
-3.2
2.0
6.6
+2.8
0
-2.0
-3.8
9.8512.410.8
2.3
+0.9
0
-0.8
-1.4
0.8
2.9
+1.2
0
-0.8
-1.7
2.5
5.7
+2.0
0
-2.5
-3.7
2.5
7.5
+3.0
0
-2.5
-4.5
12.4115.751.0
2.7
+1.0
0
-1.0
-1.7
1.0
3.4
+1.4
0
-1.0
-2.0
3.0
6.6
+2.2
0
-3.0
-4.4
3.0
8.7
+3.5
0
-3.0
-5.2
15.7519.691.2
3.0
+1.0
0
-1.2
-2.0
1.2
3.8
+1.6
0
-1.2
-2.2
4.0
8.1
+2.5
0
-4.0
-5.6
4.0
10.5
+4.0
0
-4.0
-6.5
19.6930.091.6
3.7
+1.2
0
-1.6
-2.5
1.6
4.8
+2.0
0
-1.6
-2.8
5.0
10.0
+3.0
0
-5.0
-7.0
5.0
13.0
+5.0
0
-5.0
-8.0
30.0941.492.0
4.6
+1.6
0
-2.0
-3.0
2.0
6.1
+2.5
0
-2.0
-3.6
6.0
12.5
+4.0
0
-6.0
8.5
6.0
16.0
+6.0
0
-6.0
-10.0
41.4956.192.5
5.7
+2.0
0
-2.5
-3.7
2.5
7.5
+3.0
0
-2.5
-4.5
8.0
16.0
+5.0
0
-8.0
-11.0
8.0
21.0
+8.0
0
-8.0
-13.0
56.1976.393.0
7.1
+2.5
0
-3.0
-4.6
3.0
9.5
+4.0
0
-3.0
-5.5
10.0
20.0
+6.0
0
-10.0
-14.0
10.0
26.0
+10.0
0
-10.0
-16.0
76.39100.94.0
9.0
+3.0
0
-4.0
-6.0
4.0
12.0
+5.0
0
-4.0
-7.0
12.0
25.0
+8.0
0
-121.0
-17.0
12.0
32.0
+12.0
0
-12.0
-20.0
100.9131.95.0
11.5
+4.0
0
-5.0
-7.5
5.0
15.0
+6.0
0
-5.0
-9.0
16.0
32.0
+10.0
0
-16.0
-22.0
16.0
42.0
+16.0
0
-16.0
-26.0
131.9171.96.0
14.0
+5.0
0
-6.0
-9.0
6.0
19.0
+8.0
0
-6.0
-11.0
18.0
38.0
+12.0
0
-18.0
-26.0
18.0
50.0
+20.0
0
-18.0
-30.0
171.92008.0
18.0
+6.0
0
-8.0
-12.0
8.0
22.0
+10.0
0
-8.0
-12.0
22.0
48.0
+16.0
0
-22.0
-32.0
22.0
63.0
+25.0
0
-22.0
-38.0

All limits shown in chart below are in thousandths of an inches. Symbols H8,e7, etc. are Shaft and Hole designations used in American-British-Canadian System (ABC). Limits for Shaft and Hole are applied algebraically to the Nominal (basic) size to obtain the limits of the size for the parts. All data given in bold in the chart below are in accordance with ABC agreements. The values given under the "Clearance Limits Column" represent min and max amounts of clearance resulting from application of standard tolerance limits.


-
VALUES SHOWN BELOW ARE IN THOUSANDTHS OF AN INCHES
Nominal (Basic) Size
Ranges (Inches)
Class RC5Class RC6Class RC7 Class RC8Class RC9
Clearance
Limits
Standard Tolerance LimitsClearance
Limits
Standard Tolerance Limits Clearance
Limits
Standard Tolerance LimitsClearance
Limits
Standard Tolerance LimitsClearance
Limits
Standard Tolerance Limits
OverToHole
H8
Shaft
e7
Hole
H9
Shaft
e8
Hole
H9
Shaft
d8
Hole
H10
Shaft
c9
Hole
H11
Shaft
00.120.6
1.6
+0.6
0
-0.6
-1.0
0.6
2.2
+1.0
0
-0.6
-1.2
1.0
2.6
-1.0
0
-1.0
-1.6
2.5
5.1
+1.6
0
-2.5
-3.5
4.0
8.1
+2.5
0
-4.0
-5.6
0.120.240.8
2.0
+0.7
0
-0.8
-1.3
0.8
2.7
+1.2
0
-0.8
-1.5
1.2
3.1
+1.2
0
-1.2
-1.9
2.8
5.8
+1.8
0
-2.8
-4.0
4.5
9.0
+3.0
0
-4.5
-6.0
0.240.401.0
2.5
+0.9
0
-1.0
-1.6
1.0
3.3
+1.4
0
-1.0
-1.9
1.6
3.9
+1.4
0
-1.6
-2.5
3.0
6.6
+2.2
0
-3.0
-4.4
5.0
10.7
+3.5
0
-5.5
-7.2
0.400.711.2
2.9
+1.0
0
-1.2
-1.9
1.2
3.8
+1.6
0
-1.2
-2.2
2.0
4.6
+1.6
0
-2.0
-3.0
3.5
7.9
+2.8
0
-3.5
-5.1
6.0
12.8
+4.0
0
-6.0
-8.8
0.711.191.6
3.6
+1.2
0
-1.6
-2.4
1.6
4.8
-2.0
0
-1.6
-2.8
2.5
5.7
+2.0
0
-2.5
-3.7
4.5
10.0
+3.5
0
-4.5
-6.5
7.0
15.5
+5.0
0
-7.0
-10.5
1.191.972.0
4.6
+1.6
0
-2.0
-3.0
2.0
6.1
+2.5
0
-2.0
-3.6
3.0
7.1
+2.5
0
-3.0
-4.6
5.0
11.5
+4.0
0
-5.0
-7.5
8.0
18.0
+6.0
0
-8.0
-12.0
1.973.152.5
3.5
+1.8
0
-2.5
-3.7
2.5
7.3
+3.0
0
-2.5
-4.3
4.0
8.8
+3.0
0
-4.0
-5.8
6.0
13.5
+4.5
0
-6.0
-9.0
9.0
20.5
+7.0
0
-9.0
-13.5
3.154.733.0
6.6
+2.2
0
-3.0
-4.4
3.0
8.7
+3.5
0
-3.0
-5.2
5.0
10.7
+3.5
0
-5.0
-7.2
7.0
15.5
-5.0
0
-7.0
-10.5
10.
24.0
-9.0
0
-10.0
-15.0
4.737.093.5
7.6
+2.5
0
-3.5
-5.1
3.5
10.0
+4.0
0
-3.5
-6.0
6.0
12.5
+4.0
0
-6.0
-8.5
8.0
18.0
+6.0
0
-8.0
-12.0
12.0
28.0
+10.0
0
-12.0
-18.0
7.099.854.0
8.6
+2.8
0
-4.0
-5.8
4.0
11.3
+4.5
0
-4.0
-6.8
7.0
14.3
+4.5
0
-7.0
-9.8
10.
21.5
+7.0
0
-10.0
-14.5
15.0
34.0
+12.0
0
-15.0
-22.0
9.8512.415.0
10.0
+3.0
0
-5.0
-7.0
5.0
13.0
+5.0
0
-5.0
-8.0
8.0
16.0
+5.0
0
-8.0
-11.0
12.0
25.0
+8.0
0
-12.0
-17.0
18.0
38.0
+12.0
0
-18.0
-26.0
12.4115.756.0
11.7
+3.5
0
-6.0
-8.2
6.0
15.5
+6.0
0
-6.0
-9.5
10.0
19.5
+6.0
0
-10.0
-13.5
14.0
29.0
+9.0
0
-14.0
-20.0
22.0
45.0
+14.0
0
-22.0
-31.0
15.7519.698.0
14.5
+4.0
0
-8.0
-10.5
8.0
18.0
+6.0
0
-8.0
-12.0
12.0
22.0
+6.0
0
-12.0
-16.0
16.0
32.0
+10.0
0
-16.0
-22.0
25.0
51.0
+16.0
0
-25.0
-35.0
19.6930.0910.0
18.0
+5.0
0
-10.0
-13.0
10.0
23.0
+8.0
0
-10.0
-15.0
16.0
29.0
+8.0
0
-16.0
-21.0
20.0
40.0
+12.0
0
-20.0
-28.0
30.0
62.0
+20.0
0
-30.0
-40.0
30.0941.4912.0
22.0
+6.0
0
-12.0
-16.0
12.0
28.0
+10.0
0
-12.0
-18.0
20.0
36.0
+10.0
0
-20.0
-26.0
25.0
51.0
+16.0
0
-25.0
-35.0
40.0
81.0
+25.0
0
-40.0
-56.0
41.4956.1916.0
29.0
+8.0
0
-16.0
-21.0
16.0
36.0
+12.0
0
-16.0
-24.0
25.0
45.0
+12.0
0
-25.0
-33.0
30.0
62.0
+20.0
0
-30.0
-42.0
50.0
100.0
+30.0
0
-50.
-70.0
56.1976.3920.0
36.0
+10.0
0
-20.0
-26.0
20.0
46.0
+16.0
0
-20.0
-30.0
30.0
56.0
-16.0
0
-30.0
-40.0
40.0
81.0
+25.0
0
-40.0
-56.0
60.0
125.0
+40.0
0
-60.0
-85.0
76.39100.925.0
45.0
+12.0
0
-25.0
-33.0
25.0
57.0
+20.0
0
-25.0
-37.0
40.0
72.0
+20.0
0
-40.0
-52.0
50.0
100.0
+30.0
0
-50.0
-70.0
80.0
160.0
+50.0
0
-80.0
-110
100.9131.930.0
56.0
+16.0
0
-30.0
-40.0
30.0
71.0
+25.0
0
-30.0
-46.0
50.0
91.0
+25.0
0
-50.0
-66.0
60.0
125.0
+40.0
0
-60.0
-85.0
100
200
+60.0
0
-100
-140
131.9171.935.0
67.0
+20.0
0
-35.0
-47.0
35.0
85.0
+30.0
0
-35.0
-55.0
60.0
110.0
+30.0
0
-60.0
-80.0
80.0
160
+50.0
0
-80.0
-110
130
260
+80.0
0
-130
-180
171.920045.0
86.0
+25.0
0
-45.0
-61.0
45.0
110.0
+40.0
0
-45.0
-75.0
80.0
145.0
+40.0
0
-80.0
-125
100
200
+60.0
0
-100
-140
150
310
+100
0
-150
-210

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