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{"title":"GE5C Self Lubricating Spherical Plain Bearing 5mm Bore Size for Automotive","imgUrl":"https:\/\/img.chinax.com\/nimg\/2f\/f0\/a3ef5d58d0c6be61549b2eceda0d-200x200-1\/ge5c_self_lubricating_spherical_plain_bearing_5mm_bore_size_for_automotive_industry.jpg","attrs":{"Brand Name":"SYX","Model Number":"GE5C","Certification":"ISO\/TS 16949:2009","Place of Origin":"China"}}
{"title":"GEEW...ES Radial Spherical Plain Bearings For Industrial","imgUrl":"https:\/\/img.chinax.com\/nimg\/a4\/15\/ac8d4144275195cd4d3c7f09a137-200x200-1\/geew_es_radial_spherical_plain_bearings_for_industrial.jpg","attrs":{"Brand Name":"SYX","Model Number":"GEEW...ES","Certification":"ISO\/TS 16949: 2009","Place of Origin":"Shanghai, China"}}
{"title":"Chrome Steel Radial Spherical Bearing Self Lubricating Plain Bearing GE Series","imgUrl":"https:\/\/img.chinax.com\/nimg\/2d\/2b\/22ffb79480b781ea75fd08a6450d-200x200-1\/chrome_steel_radial_spherical_bearing_self_lubricating_plain_bearing_ge_series.jpg","attrs":{"Brand Name":"SYX","Model Number":"GEFZ...S","Certification":"ISO\/TS 16949: 2009","Place of Origin":"Shanghai, China"}}
{"title":"GE Series Spherical Plain Bearing High Load Plain Bearings Mos2 Sliding Surface","imgUrl":"https:\/\/img.chinax.com\/nimg\/ed\/f8\/535220b678a673727c0217539020-200x200-1\/ge_series_spherical_plain_bearing_high_load_plain_bearings_mos2_sliding_surface.jpg","attrs":{"Brand Name":"SYX","Model Number":"GEG...E","Certification":"ISO\/TS 16949\uff1a 2009","Place of Origin":"Shanghai, China"}}
Welded cylinder bearings, also known as joint bearings, are specifically designed for hydraulic cylinder connection parts, particularly rod end bearings with weldable earrings. Common models include GK series (such as GK17DO, GK20DO) and GF series. These bearings are widely used in construction machinery and hydraulic equipment to provide flexible rotational connections between cylinders and structural components.
This bearing type consists of an outer ring, inner ring, spherical plain bearings, and sealing structure. The outer ring features earrings that can be welded directly to equipment structures. Key characteristics include strong load-bearing capacity, impact resistance, and easy installation. Available in both non-lubricated and oil-lubricated types, some products include locking ports to enhance hydraulic cylinder connection reliability.
Product Specifications:
Bearing Code
Dimensions (mm)
Load Rating kN
=a°
Unit Weight (kg)
d
B
dk
C1
d2
h
l2
l7
d5
d6
e
rs
Dynamic
Static
GK10DO
10
9
16
7
29
24
38.5
15
15
3
2
0.3
8.1
15
12
0.041
GK12DO
12
10
18
8
34
27
44
17.5
17.5
3
2
0.3
10
21
10
0.066
GK15DO
15
12
22
10
40
31
51
20
21
4
2.5
0.3
16
32
8
0.120
GK17DO
17
14
25
11
48
35
58
23
24
4
3
0.3
21
31
10
0.190
GK20DO
20
16
29
13
53
38
64.5
27.5
27.5
4
3
0.6
21
40
10
0.180
GK25DO
25
20
35.5
17
64
45
77
33
33.5
4
4
0.6
48
75
7
0.450
GK30DO
30
22
40.7
19
73
51
87.5
37.5
40
4
4
0.6
62
95
6
0.670
GK35DO
35
25
47
21
82
61
102
43
47
4
4
0.6
79
125
6
1.020
GK40DO
40
28
53
23
92
69
115
48
52
6
5
0.6
99
156
7
1.400
GK45DO
45
32
60
27
102
77
128
52
58
6
5
0.6
127
208
7
1.930
GK50DO
50
35
66
30
112
88
144
59
62
6
6
0.6
156
250
6
2.690
GK60DO
60
44
80
38
135
100
167.5
72.5
70
6
8
1
245
294
6
4.000
GK70DO
70
49
92
42
160
115
195
85.5
80
6
10
1
313
510
6
7.000
GK80DO
80
55
105
47
180
141
231
98
95
6
10
1
400
620
6
11.000
Product Features
High Structural Rigidity: Welded earrings create integrated connections that are more secure than bolted connections, enhancing overall structural rigidity and torsional resistance
Flexible Installation: Earring design allows installation from multiple angles and supports various connection methods including single earrings, double earrings, and flanges to accommodate different cylinder layouts
Wear Resistant & Low Maintenance: Composite materials on inner and outer spherical surfaces enable self-lubrication during movement, reducing external lubrication requirements in frequent refueling conditions
Cost Effective: Simple structure and easy installation reduce wearing part quantities and assembly time, lowering overall procurement and maintenance costs
Usage Questions & Answers
Where is this type of bearing used?
Widely used in various mechanical systems requiring strong load-bearing capacity including hydraulic cylinders, mining machinery, mechanical engineering, construction machinery, and production lines.
Why choose hydraulic cylinder bearings over other bearing types?
These bearings feature weldable faces that can be firmly welded, serving as reliable connections between cylinders and structural components.
How to choose an ideal bearing?
Ensure inner diameter (d), outer diameter (D), and thickness (B) match shaft diameter and installation space requirements
Verify earring bore diameter and welding dimensions comply with design drawings to ensure welding strength and positioning accuracy
Select appropriate clearance: Choose larger clearance (C3 clearance) for high-temperature or high-speed working conditions to prevent jamming from thermal expansion
How to install correctly?
Cold Installation (Small Sizes)
Apply uniform force to inner or outer ring using a sleeve and pressing machine
Insert bearing into shaft or bearing seat without directly striking with a hammer
Apply small amount of lubricating oil on contacting surfaces to reduce friction
Hot Installation (Larger Sizes)
Heat bearing to 80-100℃ before inserting onto shaft
Use induction heaters or oil bath heating for even heat distribution
Avoid heating bearings with seals or dust covers above 80℃ to prevent seal material damage
Purchasing Guide
Loading Type and Force: Determine radial load, axial load, or composite load, then estimate maximum force value. For high-impact or heavy-load scenarios (excavators, rollers), recommend self-aligning roller bearings or welded joint bearings with thickened outer rings
Environmental Conditions: Select bearings with double-sided sealing (2RS), surface phosphating, or galvanizing treatment for harsh environments including high temperature, humidity, and dusty areas
Installation Requirements: Accurately measure installation space and shaft diameter according to standard size charts
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
1996
Total Annual:
30000000-50000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Founded in 1996, Shanghai YongXing Bearing Manufacturing Co., Ltd. (SYX) has evolved from a leading manufacturer into a certified innovator at the forefront of precision motion technology. We specialize in engineering and producing high-performance spherical plain bearings, rod ends, and cam followe... Founded in 1996, Shanghai YongXing Bearing Manufacturing Co., Ltd. (SYX) has evolved from a leading manufacturer into a certified innovator at the forefront of precision motion technology. We specialize in engineering and producing high-performance spherical plain bearings, rod ends, and cam followe...
