51200 Series — Double Direction Thrust
20 bore sizes · 20 variants · 10–100 mm bore
The 51200 series are double direction thrust ball bearings supporting axial loads in both directions. They are taller and heavier than the 51100 series, with two rows of balls for bidirectional axial support. Used in machine tool spindles, hydraulic cylinders, and vertical shaft assemblies.
20Base sizes
20Variants
5Brands
10–100 mmBore range
Part Number
Bore (d)
OD (D)
Width (B)
Dynamic Load
Static Load
Max Speed (grease)
Variants
51200
10 mm
28 mm
15 mm
5.2 kN
13.7 kN
7,650 rpm
1
51201
12 mm
30 mm
15 mm
5.4 kN
13.9 kN
7,225 rpm
1
51202
15 mm
32 mm
15 mm
5.6 kN
14.2 kN
6,800 rpm
1
51203
17 mm
34 mm
15 mm
6.1 kN
14.7 kN
6,375 rpm
1
51204
20 mm
40 mm
17 mm
8.4 kN
18.6 kN
5,695 rpm
1
51205
25 mm
48 mm
19 mm
11.9 kN
26.4 kN
4,760 rpm
1
51206
30 mm
54 mm
19 mm
13.3 kN
30 kN
4,505 rpm
1
51207
35 mm
60 mm
20 mm
14 kN
31.8 kN
4,080 rpm
1
51208
40 mm
69 mm
22 mm
18.2 kN
41.7 kN
3,655 rpm
1
51209
45 mm
75 mm
24 mm
21.1 kN
48 kN
3,400 rpm
1
51210
50 mm
80 mm
24 mm
21.9 kN
51 kN
3,060 rpm
1
51211
55 mm
90 mm
27 mm
27.7 kN
63.6 kN
2,890 rpm
1
51212
60 mm
98 mm
29 mm
31.2 kN
72 kN
2,550 rpm
1
51213
65 mm
103 mm
31 mm
33.6 kN
79.2 kN
2,380 rpm
1
51214
70 mm
109 mm
31 mm
34.3 kN
82.2 kN
2,210 rpm
1
51215
75 mm
115 mm
32 mm
36.3 kN
89.4 kN
2,040 rpm
1
51216
80 mm
121 mm
32 mm
36.6 kN
91.8 kN
1,870 rpm
1
51217
85 mm
126 mm
32 mm
38.4 kN
95.4 kN
1,700 rpm
1
51218
90 mm
138 mm
37 mm
49.2 kN
122.4 kN
1,615 rpm
1
51220
100 mm
155 mm
42 mm
61.2 kN
156 kN
1,445 rpm
1
Common Applications
Machine Types
- Machine tool spindles (bidirectional)
- Hydraulic cylinders
- Vertical shaft assemblies
- Precision positioning equipment
- Screw drives
- Heavy machinery pivots
- Industrial gearboxes