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Support roller (yoke-type track roller), without flange rings and inner ring
Support rollers (yoke-type track rollers) are designed to run on and to be used in cam drives, bed ways, conveyor systems, linear guidance systems, etc. They are based on a single row needle roller bearing with an inner ring. They have a thick-walled outer ring with a crowned running surface and are supplied ready-to-mount. The inner ring contains a lubrication hole to facilitate relubrication. The outer ring, the inner ring and the needle roller and cage assembly can be mounted separately.
• High radial load carrying capacity
• Able to withstand shock loads
• Long service life
• Ready to mount
• Separable design

PRODUCT FILTERS AND TABLE

Outside diameter (mm)

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Bore diameter (mm)

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Width inner ring (mm)

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Width outer ring (mm)

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Outer ring profile
Crowned
Cylindrical
Designation

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Designation Outside diameter Bore diameter Width inner ring Width outer ring Basic dynamic load rating Basic static load rating Maximum dynamic radial load Maximum static radial load Weight
D d B C C C0 Fr F0r ≈m
mm
mm
mm
mm
kN
kN
kN
kN
kg
STO6TN 19 6 10 9.8 3.74 4.5 4.25 6.1 0.017
STO8TN 24 8 10 9.8 4.13 5.4 7.5 10.8 0.026
STO10 30 10 12 11.8 8.25 8.8 8.5 12.2 0.049
STO12 32 12 12 11.8 8.8 9.8 8.3 12 0.057
STO15 35 15 12 11.8 9.13 10.6 7.1 10 0.063
STO17 40 17 16 15.8 14.2 17.6 12 17.3 0.107
STO20 47 20 16 15.8 16.1 21.2 18.6 26.5 0.152
STO25 52 25 16 15.8 16.5 22.8 18 26 0.177
STO30 62 30 20 19.8 22.9 34.5 23.6 33.5 0.308
STO35 72 35 20 19.8 24.6 39 36 51 0.441
STO40 80 40 20 19.8 23.8 39 34.5 49 0.53
STO45 85 45 20 19.8 25.1 43 34.5 50 0.576
STO50 90 50 20 19.8 26 45.5 34.5 50 0.617
STO6XTN 19 6 10 9.8 3.74 4.5 4.25 6.1 0.017
STO8XTN 24 8 10 9.8 4.13 5.4 7.5 10.8 0.026
STO10X 30 10 12 11.8 8.25 8.8 8.5 12.2 0.049
STO12X 32 12 12 11.8 8.8 9.8 8.3 12 0.057
STO15X 35 15 12 11.8 9.13 10.6 7.1 10 0.063
STO17X 40 17 16 15.8 14.2 17.6 12 17.3 0.107
STO20X 47 20 16 15.8 16.1 21.2 18.6 26.5 0.152
STO25X 52 25 16 15.8 16.5 22.8 18 26 0.177
STO30X 62 30 20 19.8 22.9 34.5 23.6 33.5 0.308
STO35X 72 35 20 19.8 24.6 39 36 51 0.441
STO40X 80 40 20 19.8 23.8 39 34.5 49 0.53
STO45X 85 45 20 19.8 25.1 43 34.5 50 0.576
STO50X 90 50 20 19.8 26 45.5 34.5 50 0.617
STO6TN
D Outside diameter 19 mm
d Bore diameter 6 mm
B Width inner ring 10 mm
C Width outer ring 9.8 mm
C Basic dynamic load rating 3.74 kN
C0 Basic static load rating 4.5 kN
Fr Maximum dynamic radial load 4.25 kN
F0r Maximum static radial load 6.1 kN
≈m Weight 0.017 kg
STO8TN
D Outside diameter 24 mm
d Bore diameter 8 mm
B Width inner ring 10 mm
C Width outer ring 9.8 mm
C Basic dynamic load rating 4.13 kN
C0 Basic static load rating 5.4 kN
Fr Maximum dynamic radial load 7.5 kN
F0r Maximum static radial load 10.8 kN
≈m Weight 0.026 kg
STO10
D Outside diameter 30 mm
d Bore diameter 10 mm
B Width inner ring 12 mm
C Width outer ring 11.8 mm
C Basic dynamic load rating 8.25 kN
C0 Basic static load rating 8.8 kN
Fr Maximum dynamic radial load 8.5 kN
F0r Maximum static radial load 12.2 kN
≈m Weight 0.049 kg
STO12
D Outside diameter 32 mm
d Bore diameter 12 mm
B Width inner ring 12 mm
C Width outer ring 11.8 mm
C Basic dynamic load rating 8.8 kN
C0 Basic static load rating 9.8 kN
Fr Maximum dynamic radial load 8.3 kN
F0r Maximum static radial load 12 kN
≈m Weight 0.057 kg
STO15
D Outside diameter 35 mm
d Bore diameter 15 mm
B Width inner ring 12 mm
C Width outer ring 11.8 mm
C Basic dynamic load rating 9.13 kN
C0 Basic static load rating 10.6 kN
Fr Maximum dynamic radial load 7.1 kN
F0r Maximum static radial load 10 kN
≈m Weight 0.063 kg
STO17
D Outside diameter 40 mm
d Bore diameter 17 mm
B Width inner ring 16 mm
C Width outer ring 15.8 mm
C Basic dynamic load rating 14.2 kN
C0 Basic static load rating 17.6 kN
Fr Maximum dynamic radial load 12 kN
F0r Maximum static radial load 17.3 kN
≈m Weight 0.107 kg
STO20
D Outside diameter 47 mm
d Bore diameter 20 mm
B Width inner ring 16 mm
C Width outer ring 15.8 mm
C Basic dynamic load rating 16.1 kN
C0 Basic static load rating 21.2 kN
Fr Maximum dynamic radial load 18.6 kN
F0r Maximum static radial load 26.5 kN
≈m Weight 0.152 kg
STO25
D Outside diameter 52 mm
d Bore diameter 25 mm
B Width inner ring 16 mm
C Width outer ring 15.8 mm
C Basic dynamic load rating 16.5 kN
C0 Basic static load rating 22.8 kN
Fr Maximum dynamic radial load 18 kN
F0r Maximum static radial load 26 kN
≈m Weight 0.177 kg
STO30
D Outside diameter 62 mm
d Bore diameter 30 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 22.9 kN
C0 Basic static load rating 34.5 kN
Fr Maximum dynamic radial load 23.6 kN
F0r Maximum static radial load 33.5 kN
≈m Weight 0.308 kg
STO35
D Outside diameter 72 mm
d Bore diameter 35 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 24.6 kN
C0 Basic static load rating 39 kN
Fr Maximum dynamic radial load 36 kN
F0r Maximum static radial load 51 kN
≈m Weight 0.441 kg
STO40
D Outside diameter 80 mm
d Bore diameter 40 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 23.8 kN
C0 Basic static load rating 39 kN
Fr Maximum dynamic radial load 34.5 kN
F0r Maximum static radial load 49 kN
≈m Weight 0.53 kg
STO45
D Outside diameter 85 mm
d Bore diameter 45 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 25.1 kN
C0 Basic static load rating 43 kN
Fr Maximum dynamic radial load 34.5 kN
F0r Maximum static radial load 50 kN
≈m Weight 0.576 kg
STO50
D Outside diameter 90 mm
d Bore diameter 50 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 26 kN
C0 Basic static load rating 45.5 kN
Fr Maximum dynamic radial load 34.5 kN
F0r Maximum static radial load 50 kN
≈m Weight 0.617 kg
STO6XTN
D Outside diameter 19 mm
d Bore diameter 6 mm
B Width inner ring 10 mm
C Width outer ring 9.8 mm
C Basic dynamic load rating 3.74 kN
C0 Basic static load rating 4.5 kN
Fr Maximum dynamic radial load 4.25 kN
F0r Maximum static radial load 6.1 kN
≈m Weight 0.017 kg
STO8XTN
D Outside diameter 24 mm
d Bore diameter 8 mm
B Width inner ring 10 mm
C Width outer ring 9.8 mm
C Basic dynamic load rating 4.13 kN
C0 Basic static load rating 5.4 kN
Fr Maximum dynamic radial load 7.5 kN
F0r Maximum static radial load 10.8 kN
≈m Weight 0.026 kg
STO10X
D Outside diameter 30 mm
d Bore diameter 10 mm
B Width inner ring 12 mm
C Width outer ring 11.8 mm
C Basic dynamic load rating 8.25 kN
C0 Basic static load rating 8.8 kN
Fr Maximum dynamic radial load 8.5 kN
F0r Maximum static radial load 12.2 kN
≈m Weight 0.049 kg
STO12X
D Outside diameter 32 mm
d Bore diameter 12 mm
B Width inner ring 12 mm
C Width outer ring 11.8 mm
C Basic dynamic load rating 8.8 kN
C0 Basic static load rating 9.8 kN
Fr Maximum dynamic radial load 8.3 kN
F0r Maximum static radial load 12 kN
≈m Weight 0.057 kg
STO15X
D Outside diameter 35 mm
d Bore diameter 15 mm
B Width inner ring 12 mm
C Width outer ring 11.8 mm
C Basic dynamic load rating 9.13 kN
C0 Basic static load rating 10.6 kN
Fr Maximum dynamic radial load 7.1 kN
F0r Maximum static radial load 10 kN
≈m Weight 0.063 kg
STO17X
D Outside diameter 40 mm
d Bore diameter 17 mm
B Width inner ring 16 mm
C Width outer ring 15.8 mm
C Basic dynamic load rating 14.2 kN
C0 Basic static load rating 17.6 kN
Fr Maximum dynamic radial load 12 kN
F0r Maximum static radial load 17.3 kN
≈m Weight 0.107 kg
STO20X
D Outside diameter 47 mm
d Bore diameter 20 mm
B Width inner ring 16 mm
C Width outer ring 15.8 mm
C Basic dynamic load rating 16.1 kN
C0 Basic static load rating 21.2 kN
Fr Maximum dynamic radial load 18.6 kN
F0r Maximum static radial load 26.5 kN
≈m Weight 0.152 kg
STO25X
D Outside diameter 52 mm
d Bore diameter 25 mm
B Width inner ring 16 mm
C Width outer ring 15.8 mm
C Basic dynamic load rating 16.5 kN
C0 Basic static load rating 22.8 kN
Fr Maximum dynamic radial load 18 kN
F0r Maximum static radial load 26 kN
≈m Weight 0.177 kg
STO30X
D Outside diameter 62 mm
d Bore diameter 30 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 22.9 kN
C0 Basic static load rating 34.5 kN
Fr Maximum dynamic radial load 23.6 kN
F0r Maximum static radial load 33.5 kN
≈m Weight 0.308 kg
STO35X
D Outside diameter 72 mm
d Bore diameter 35 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 24.6 kN
C0 Basic static load rating 39 kN
Fr Maximum dynamic radial load 36 kN
F0r Maximum static radial load 51 kN
≈m Weight 0.441 kg
STO40X
D Outside diameter 80 mm
d Bore diameter 40 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 23.8 kN
C0 Basic static load rating 39 kN
Fr Maximum dynamic radial load 34.5 kN
F0r Maximum static radial load 49 kN
≈m Weight 0.53 kg
STO45X
D Outside diameter 85 mm
d Bore diameter 45 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 25.1 kN
C0 Basic static load rating 43 kN
Fr Maximum dynamic radial load 34.5 kN
F0r Maximum static radial load 50 kN
≈m Weight 0.576 kg
STO50X
D Outside diameter 90 mm
d Bore diameter 50 mm
B Width inner ring 20 mm
C Width outer ring 19.8 mm
C Basic dynamic load rating 26 kN
C0 Basic static load rating 45.5 kN
Fr Maximum dynamic radial load 34.5 kN
F0r Maximum static radial load 50 kN
≈m Weight 0.617 kg
Outside diameter
D
19 mm
Bore diameter
d
6 mm
Width inner ring
B
10 mm
Width outer ring
C
9.8 mm
Basic dynamic load rating
C
3.74 kN
Basic static load rating
C0
4.5 kN
Maximum dynamic radial load
Fr
4.25 kN
Maximum static radial load
F0r
6.1 kN
Weight
≈m
0.017 kg
Outside diameter
D
24 mm
Bore diameter
d
8 mm
Width inner ring
B
10 mm
Width outer ring
C
9.8 mm
Basic dynamic load rating
C
4.13 kN
Basic static load rating
C0
5.4 kN
Maximum dynamic radial load
Fr
7.5 kN
Maximum static radial load
F0r
10.8 kN
Weight
≈m
0.026 kg
Outside diameter
D
30 mm
Bore diameter
d
10 mm
Width inner ring
B
12 mm
Width outer ring
C
11.8 mm
Basic dynamic load rating
C
8.25 kN
Basic static load rating
C0
8.8 kN
Maximum dynamic radial load
Fr
8.5 kN
Maximum static radial load
F0r
12.2 kN
Weight
≈m
0.049 kg
Outside diameter
D
32 mm
Bore diameter
d
12 mm
Width inner ring
B
12 mm
Width outer ring
C
11.8 mm
Basic dynamic load rating
C
8.8 kN
Basic static load rating
C0
9.8 kN
Maximum dynamic radial load
Fr
8.3 kN
Maximum static radial load
F0r
12 kN
Weight
≈m
0.057 kg
Outside diameter
D
35 mm
Bore diameter
d
15 mm
Width inner ring
B
12 mm
Width outer ring
C
11.8 mm
Basic dynamic load rating
C
9.13 kN
Basic static load rating
C0
10.6 kN
Maximum dynamic radial load
Fr
7.1 kN
Maximum static radial load
F0r
10 kN
Weight
≈m
0.063 kg
Outside diameter
D
40 mm
Bore diameter
d
17 mm
Width inner ring
B
16 mm
Width outer ring
C
15.8 mm
Basic dynamic load rating
C
14.2 kN
Basic static load rating
C0
17.6 kN
Maximum dynamic radial load
Fr
12 kN
Maximum static radial load
F0r
17.3 kN
Weight
≈m
0.107 kg
Outside diameter
D
47 mm
Bore diameter
d
20 mm
Width inner ring
B
16 mm
Width outer ring
C
15.8 mm
Basic dynamic load rating
C
16.1 kN
Basic static load rating
C0
21.2 kN
Maximum dynamic radial load
Fr
18.6 kN
Maximum static radial load
F0r
26.5 kN
Weight
≈m
0.152 kg
Outside diameter
D
52 mm
Bore diameter
d
25 mm
Width inner ring
B
16 mm
Width outer ring
C
15.8 mm
Basic dynamic load rating
C
16.5 kN
Basic static load rating
C0
22.8 kN
Maximum dynamic radial load
Fr
18 kN
Maximum static radial load
F0r
26 kN
Weight
≈m
0.177 kg
Outside diameter
D
62 mm
Bore diameter
d
30 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
22.9 kN
Basic static load rating
C0
34.5 kN
Maximum dynamic radial load
Fr
23.6 kN
Maximum static radial load
F0r
33.5 kN
Weight
≈m
0.308 kg
Outside diameter
D
72 mm
Bore diameter
d
35 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
24.6 kN
Basic static load rating
C0
39 kN
Maximum dynamic radial load
Fr
36 kN
Maximum static radial load
F0r
51 kN
Weight
≈m
0.441 kg
Outside diameter
D
80 mm
Bore diameter
d
40 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
23.8 kN
Basic static load rating
C0
39 kN
Maximum dynamic radial load
Fr
34.5 kN
Maximum static radial load
F0r
49 kN
Weight
≈m
0.53 kg
Outside diameter
D
85 mm
Bore diameter
d
45 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
25.1 kN
Basic static load rating
C0
43 kN
Maximum dynamic radial load
Fr
34.5 kN
Maximum static radial load
F0r
50 kN
Weight
≈m
0.576 kg
Outside diameter
D
90 mm
Bore diameter
d
50 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
26 kN
Basic static load rating
C0
45.5 kN
Maximum dynamic radial load
Fr
34.5 kN
Maximum static radial load
F0r
50 kN
Weight
≈m
0.617 kg
Outside diameter
D
19 mm
Bore diameter
d
6 mm
Width inner ring
B
10 mm
Width outer ring
C
9.8 mm
Basic dynamic load rating
C
3.74 kN
Basic static load rating
C0
4.5 kN
Maximum dynamic radial load
Fr
4.25 kN
Maximum static radial load
F0r
6.1 kN
Weight
≈m
0.017 kg
Outside diameter
D
24 mm
Bore diameter
d
8 mm
Width inner ring
B
10 mm
Width outer ring
C
9.8 mm
Basic dynamic load rating
C
4.13 kN
Basic static load rating
C0
5.4 kN
Maximum dynamic radial load
Fr
7.5 kN
Maximum static radial load
F0r
10.8 kN
Weight
≈m
0.026 kg
Outside diameter
D
30 mm
Bore diameter
d
10 mm
Width inner ring
B
12 mm
Width outer ring
C
11.8 mm
Basic dynamic load rating
C
8.25 kN
Basic static load rating
C0
8.8 kN
Maximum dynamic radial load
Fr
8.5 kN
Maximum static radial load
F0r
12.2 kN
Weight
≈m
0.049 kg
Outside diameter
D
32 mm
Bore diameter
d
12 mm
Width inner ring
B
12 mm
Width outer ring
C
11.8 mm
Basic dynamic load rating
C
8.8 kN
Basic static load rating
C0
9.8 kN
Maximum dynamic radial load
Fr
8.3 kN
Maximum static radial load
F0r
12 kN
Weight
≈m
0.057 kg
Outside diameter
D
35 mm
Bore diameter
d
15 mm
Width inner ring
B
12 mm
Width outer ring
C
11.8 mm
Basic dynamic load rating
C
9.13 kN
Basic static load rating
C0
10.6 kN
Maximum dynamic radial load
Fr
7.1 kN
Maximum static radial load
F0r
10 kN
Weight
≈m
0.063 kg
Outside diameter
D
40 mm
Bore diameter
d
17 mm
Width inner ring
B
16 mm
Width outer ring
C
15.8 mm
Basic dynamic load rating
C
14.2 kN
Basic static load rating
C0
17.6 kN
Maximum dynamic radial load
Fr
12 kN
Maximum static radial load
F0r
17.3 kN
Weight
≈m
0.107 kg
Outside diameter
D
47 mm
Bore diameter
d
20 mm
Width inner ring
B
16 mm
Width outer ring
C
15.8 mm
Basic dynamic load rating
C
16.1 kN
Basic static load rating
C0
21.2 kN
Maximum dynamic radial load
Fr
18.6 kN
Maximum static radial load
F0r
26.5 kN
Weight
≈m
0.152 kg
Outside diameter
D
52 mm
Bore diameter
d
25 mm
Width inner ring
B
16 mm
Width outer ring
C
15.8 mm
Basic dynamic load rating
C
16.5 kN
Basic static load rating
C0
22.8 kN
Maximum dynamic radial load
Fr
18 kN
Maximum static radial load
F0r
26 kN
Weight
≈m
0.177 kg
Outside diameter
D
62 mm
Bore diameter
d
30 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
22.9 kN
Basic static load rating
C0
34.5 kN
Maximum dynamic radial load
Fr
23.6 kN
Maximum static radial load
F0r
33.5 kN
Weight
≈m
0.308 kg
Outside diameter
D
72 mm
Bore diameter
d
35 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
24.6 kN
Basic static load rating
C0
39 kN
Maximum dynamic radial load
Fr
36 kN
Maximum static radial load
F0r
51 kN
Weight
≈m
0.441 kg
Outside diameter
D
80 mm
Bore diameter
d
40 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
23.8 kN
Basic static load rating
C0
39 kN
Maximum dynamic radial load
Fr
34.5 kN
Maximum static radial load
F0r
49 kN
Weight
≈m
0.53 kg
Outside diameter
D
85 mm
Bore diameter
d
45 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
25.1 kN
Basic static load rating
C0
43 kN
Maximum dynamic radial load
Fr
34.5 kN
Maximum static radial load
F0r
50 kN
Weight
≈m
0.576 kg
Outside diameter
D
90 mm
Bore diameter
d
50 mm
Width inner ring
B
20 mm
Width outer ring
C
19.8 mm
Basic dynamic load rating
C
26 kN
Basic static load rating
C0
45.5 kN
Maximum dynamic radial load
Fr
34.5 kN
Maximum static radial load
F0r
50 kN
Weight
≈m
0.617 kg
Tolerance and Clearance

Bearing tolerances and clearances

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