51100 Series — Single Direction Thrust
20 bore sizes · 20 variants · 10–100 mm bore
The 51100 series are single direction thrust ball bearings designed exclusively for axial loads in one direction. They consist of a shaft washer, housing washer, and ball/cage assembly. Used in machine tool spindles, screw jacks, automotive steering columns, and vertical pump applications.
20Base sizes
20Variants
5Brands
10–100 mmBore range
Part Number
Bore (d)
OD (D)
Width (B)
Dynamic Load
Static Load
Max Speed (grease)
Variants
51100
10 mm
24 mm
9 mm
8.7 kN
22.9 kN
9,000 rpm
1
51101
12 mm
26 mm
9 mm
9 kN
23.2 kN
8,500 rpm
1
51102
15 mm
28 mm
9 mm
9.3 kN
23.6 kN
8,000 rpm
1
51103
17 mm
30 mm
9 mm
10.2 kN
24.5 kN
7,500 rpm
1
51104
20 mm
35 mm
10 mm
14 kN
31 kN
6,700 rpm
1
51105
25 mm
42 mm
11 mm
19.9 kN
44 kN
5,600 rpm
1
51106
30 mm
47 mm
11 mm
22.1 kN
50 kN
5,300 rpm
1
51107
35 mm
52 mm
12 mm
23.4 kN
53 kN
4,800 rpm
1
51108
40 mm
60 mm
13 mm
30.4 kN
69.5 kN
4,300 rpm
1
51109
45 mm
65 mm
14 mm
35.1 kN
80 kN
4,000 rpm
1
51110
50 mm
70 mm
14 mm
36.5 kN
85 kN
3,600 rpm
1
51111
55 mm
78 mm
16 mm
46.2 kN
106 kN
3,400 rpm
1
51112
60 mm
85 mm
17 mm
52 kN
120 kN
3,000 rpm
1
51113
65 mm
90 mm
18 mm
56 kN
132 kN
2,800 rpm
1
51114
70 mm
95 mm
18 mm
57.2 kN
137 kN
2,600 rpm
1
51115
75 mm
100 mm
19 mm
60.5 kN
149 kN
2,400 rpm
1
51116
80 mm
105 mm
19 mm
61 kN
153 kN
2,200 rpm
1
51117
85 mm
110 mm
19 mm
64 kN
159 kN
2,000 rpm
1
51118
90 mm
120 mm
22 mm
82 kN
204 kN
1,900 rpm
1
51120
100 mm
135 mm
25 mm
102 kN
260 kN
1,700 rpm
1
Common Applications
Machine Types
- Machine tool spindles
- Automotive steering columns
- Screw jacks and lead screws
- Rotary tables
- Crane hooks and swivels
- Vertical pumps
- Turntables and indexing tables