Based on more than 20 years of experience in manufacturing precision spherical plain bearings, we offer a reliable range of GEK Series Spherical Plain Bearings, designed to deliver stable performance, high durability, and wide adaptability in demanding applications.
Product Introduction
Race: Available in 17-4PH stainless steel, 1045 carbon steel, or alloy steel depending on application requirements.
Ball:Made from stainless steel 440 / 440C, offering excellent hardness and wear resistance.
Liner:PTFE lining ensures smooth articulation and reduced friction during operation.
Technical Parameters
GEK Series Spherical Plain Bearing

|
Part No. |
Data sheet (metric) |
|||||||||||
|
Steel to Steel |
PTFE Liner |
Slot Injection |
d |
D |
B |
C |
d1 » |
dk |
a° » |
Load rating » (kN) |
Weight » (kg) |
|
|
Dynamic |
Static |
|||||||||||
|
GEK3S |
GEK3T |
GEK3N |
3 |
10 |
6 |
4.5 |
5.1 |
7.9 |
14 |
2.3 |
6.7 |
0.004 |
|
GEK4S |
GEK4T |
GEK4N |
4 |
12 |
7 |
5 |
6.4 |
9.5 |
13 |
4.3 |
11 |
0.005 |
|
GEK5S |
GEK5T |
GEK5N |
5 |
13 |
8 |
6 |
7.7 |
11.1 |
13 |
6 |
15 |
0.006 |
|
GEK6S |
GEK6T |
GEK6N |
6 |
16 |
9 |
6.75 |
8.9 |
12.7 |
13 |
7.7 |
19 |
0.010 |
|
GEK8S |
GEK8T |
GEK8N |
8 |
19 |
12 |
9 |
10.3 |
15.8 |
14 |
13 |
32 |
0.018 |
|
GEK10S |
GEK10T |
GEK10N |
10 |
22 |
14 |
10.5 |
12.9 |
19 |
13 |
18 |
45 |
0.027 |
|
GEK12S |
GEK12T |
GEK12N |
12 |
26 |
16 |
12 |
15.4 |
22.2 |
13 |
24 |
60 |
0.043 |
|
GEK14S |
GEK14T |
GEK14N |
14 |
29 |
19 |
13.5 |
16.8 |
25.4 |
16 |
31 |
77 |
0.055 |
|
GEK16S |
GEK16T |
GEK16N |
16 |
32 |
21 |
15 |
19.3 |
28.5 |
15 |
38 |
96 |
0.081 |
|
GEK18S |
GEK18T |
GEK18N |
18 |
35 |
23 |
16.5 |
21.8 |
31.7 |
15 |
47 |
117 |
0.103 |
|
GEK20S |
GEK20T |
GEK20N |
20 |
40 |
25 |
18 |
24.3 |
34.9 |
14 |
56 |
141 |
0.150 |
|
GEK22S |
GEK22T |
GEK22N |
22 |
42 |
28 |
20 |
25.8 |
38.1 |
15 |
68 |
171 |
0.177 |
|
GEK25S |
GEK25T |
GEK25N |
25 |
47 |
31 |
22 |
29.5 |
42.8 |
15 |
84 |
212 |
0.240 |
|
GEK28S |
GEK28T |
GEK28N |
28 |
52 |
35 |
25 |
32.2 |
47.6 |
16 |
107 |
267 |
0.325 |
|
GEK30S |
GEK30T |
GEK30N |
30 |
55 |
37 |
25 |
34.8 |
50.8 |
17 |
113 |
283 |
0.375 |
|
GEK35S |
GEK35T |
GEK35N |
35 |
65 |
43 |
30 |
40.3 |
57.1 |
16 |
152 |
380 |
0.55 |
|
GEK40S |
GEK40T |
GEK40N |
40 |
72 |
49 |
35 |
44.2 |
66.6 |
16 |
203 |
508 |
0.70 |
|
GEK50S |
GEK50T |
GEK50N |
50 |
90 |
60 |
45 |
55.8 |
82.5 |
14 |
325 |
810 |
1.60 |
|
Race ring |
Ball |
Self Lubr |
|
Carbon steel 1020 1045 Chrome molly 4135, heat treated Stainless steel 303/304, 316, 420, 17-4PH |
Bearing steel 52100 Stainless steel 440/440C Harden and hard chrome plated |
PTFE liner PTFE PTFE with Nylon reinforced composite |
FAQ
Q: Are GEK series bearings suitable for high-speed applications?
A: They are mainly designed for oscillating and low-to-medium speed movement, rather than high-speed continuous rotation.
Q: How do you prevent corrosion in harsh environments?
A: Material selection such as stainless steel options and proper surface treatment help improve corrosion resistance in harsh conditions.
Q: Can these bearings handle misalignment during operation?
A: Yes, spherical structure allows angular misalignment while maintaining smooth movement and load distribution.
Q: What type of maintenance is required during use?
A: With PTFE liner design, the bearing requires minimal maintenance under normal working conditions.
Q: Can you provide customized tolerance or fit class?
A: Yes, we can adjust tolerance and fit class based on specific engineering requirements.
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