IN'S Linear Ball Bearing
Flanged Slide Bearing
SMF SMK
SMT KBF
KBK SWF
SWK SMF-W
SMK-W KBF-W
KBK-W SMT-W
SMFC/SMKC
KBFC/KBKC
SWFC/SWKC
SMF-E/SMK-E
SMF-W-E/SMK-W-E
SMTC SMT-E
SMT-W-E
Super Linear Ball Bearing
IN'S Linear Ball Bearing System Case Unit
IN'S Linear Ball Bearing System Support Rail Unit
IN'S Linear Ball Bearing System Shaft Support
IN'S Linear Ball Bearing System SM Shaft
IN'S Linear Ball Bearing System Interchangeability list
IN'S Linear Ball Bearing System Tolerances for inside diameter of housing

Nominal shaft
diameter
mm

Nominal Part No.

Major Dimensions and Tolerance

Eccen
tricity
µm

Squar
eness
µm

Basic Load Rating  

Nominal shaft
diameter
mm

SWFC

SWKC

Weight
g

mm

dr

mm

D

mm

L

Flange

Toler
ance
µm

Toler
ance 
µm

Toler
ance 
µm

l
mm

Df
mm

K
mm

t
mm

Dp
mm

X
mm

Y
mm

Z
mm

dynamic
 CN

static
CoN

1/4
6.350

SWFC4   

SWKC4G   

40
33
.2500
6.350
    0
-.00040
        0
     -0.01
.5000
12.700
       0
-.00050
        0 -0.013
1.3750
34.925

.012
0.3

.5781
14.684
1.2500
31.750
1.0000
25.400
.2188
5.556
.8750
22.225
.1563
3.969
.2500
6.350
.1406
3.572
.0006

    15
.0006

    15
323 530 1/4
6.350
3/8
9.525

SWFC6

SWKC6G

60
45
.3750
9.525 
.6250
15.875
        0
-.00065
       0
  -0.016
1.5938
40.481
.6719
17.066
1.5000
38.100
1.2500
31.750
.2500
6.350
1.0625
26.988
.1875
4.763
.2969
7.541
.1719
4.366
353 630 3/8
9.525
1/2
12.700

SWFC8

SWKC8G

126
106
.5000
12.700
.8750
22.225
2.3750
60.325
1.0625
26.988
1.7500
44.450
1.3750
34.925
.2500
6.350
1.3125
33.338
.1875
4.763
.2969
7.541
.1719
4.366
813 1,570 1/2
12.700
5/8
15.875

SWFC10

SWKC10G

215
200
.6250
15.875
1.1250
28.575
2.8125
71.438
1.2816
32.544
2.0000
50.800
1.5000
38.100
.2500
6.350
1.5625
39.688
.1875
4.763
.2969
7.541
.1719
4.366
1,230 2,350 5/8
15.875
3/4
19.050

SWFC12

SWKC12G

280
240
.7500
19.050
       0
-0.0004
        0
     -0.01
1.2500
31.750
         0
-.00075
        0
 -0.019
3.0937
78.581
1.3906
35.322
2.1875
55.563
1.6875
42.863
.3125
7.938
1.7188
43.656
.2188
5.556
.3438
8.731
.2031
5.159
.0008

    20
.0008

    20
1,370 2,740 3/4
19.050
1
25.400

SWFC16

SWKC16G

515
470
1.0000
25.400
1.5625
39.688
4.2813
108.744
1.9844
50.403
2.5000
63.500
2.0000
50.800
.3125
7.938
2.0313
51.594
.2188
5.556
.3438
8.731
.2031
5.159
1,570 3,140 1
25.400
1-1/4
31.750

SWFC20

SWKC20G

1,020
  935
1.2500
31.750
       0
-.00059
        0
     -0.015
2.0000
50.800
   0
-.00090
        0
  -0.022
5.0000
127.000
2.3125
58.738
3.1250
79.375
2.5000
63.500
.3750
9.525
2.5625
65.088
.2813
7.144
.4063
10.319
.2656
6.747
.0010

   25
.0010

   25
2,500 5,490 1-1/4
31.750
1-1/2
38.100

SWFC24

SWKC24G

1,630
1,460
1.5000
38.100
2.3750
60.325
5.6875
144.463
2.5938
65.882
3.7500
95.250
3.0000
76.200
.5000
12.700
3.0625
77.788
.3437
8.731
.5000
12.700
.3281
8.334
3,430 8,040 1-1/2
38.100
2
50.800

SWFC32

SWKC32G

2,800
2,620
2.0000
50.800
3.0000
76.200
     0
-.00100
        0
-0.025
7.7500
196.850
3.6250
92.075
4.3750
111.125
3.5000
88.900
.5000
12.700
3.6875
93.662
.3437
8.731
.5000
12.700
.3281
8.334
.0012
     30
.0012
     30
6,080 15,900 2
50.800

SI Unit 1N0.102 kgf  
                                                                                             Copyright  © 2007 Silverstone machinery industry Co.,Ltd. All Right Reserved.                                                       Design:enxun.com
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