When you need exceptional rigidity and precision in a compact bearing solution, the XU080120UU Cross roller bearing delivers outstanding performance for demanding industrial applications. This integrated bearing features cylindrical rollers arranged in a 90-degree cross pattern within V-shaped raceways, providing superior load-carrying capacity compared to conventional ball bearings. The solid inner and outer ring construction eliminates assembly errors while maintaining consistent rotational accuracy throughout its service life.

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Bearing Designations
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Boundary Dimensions(mm)
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Basic Load Rating(Axial)
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Basic Load Rating(Radial)
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Weight(kg)
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|||||
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d
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D
|
dp
|
width
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Ca
KN
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Coa
KN
|
Gr
KN
|
Cor
KN
|
|
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XU050077
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40
|
112
|
77
|
22
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22.4
|
29
|
14.3
|
14.2
|
1.4
|
|
XU060094
|
57
|
140
|
94
|
26
|
32.5
|
37.5
|
20.7
|
18.4
|
2.4
|
|
XU060111
|
76.2
|
145.79
|
111
|
15.87
|
36
|
44.5
|
22.8
|
21.5
|
1.2
|
|
XU080120
|
69
|
170
|
120
|
30
|
56
|
53
|
35.5
|
26
|
4
|
|
XU080149
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101.6
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196.85
|
149.6
|
22.22
|
63
|
66
|
40
|
32.5
|
3.6
|
|
XU120179
|
124.5
|
234
|
179
|
35
|
118
|
179
|
75
|
88
|
7
|
|
XU120222
|
140
|
300
|
222
|
36
|
133
|
275
|
85
|
121
|
12
|
|
XU160260
|
191
|
329
|
260
|
46
|
212
|
350
|
135
|
173
|
16
|
|
XU080264
|
215.9
|
311
|
264
|
25.4
|
85
|
117
|
54
|
57
|
6.9
|
|
XU160405
|
336
|
474
|
405
|
46
|
270
|
550
|
172
|
270
|
25
|
|
XU080430
|
380
|
480
|
430
|
26
|
110
|
280
|
70
|
138
|
12
|
|
XU300515
|
384
|
646
|
515
|
86
|
720
|
1370
|
455
|
670
|
115
|
The cross roller bearing design utilizes cylindrical rollers positioned perpendicular to each other within V-groove raceways. This configuration creates line contact between rollers and races, maximizing load distribution across the bearing surface.
Key structural elements include:
This structure enables the bearing to function as a complete rotary joint in a single unit, replacing multiple bearing arrangements traditionally required for multi-directional loading.
The XU080120UU Cross roller bearing offers several engineering benefits for precision applications:
High Load Capacity: The cross roller arrangement distributes loads across multiple contact points, providing 3-4 times greater rigidity than equivalent angular contact ball bearings.
Zero Backlash Operation: Factory-set preload eliminates internal clearance, ensuring precise positioning without play or lost motion.
Compact Installation: Integrated mounting holes on the end face allow direct bolt-on installation, reducing assembly height and component count.
Stable Rotational Torque: Roller separators prevent direct contact between rolling elements, maintaining consistent torque characteristics throughout the operating range.
Multi-directional Loading: Single bearing unit handles combined radial, axial, and moment loads, simplifying machine design.
This bearing arrangement exceeds expectations in applications requiring exactness, unbending nature, and compact packaging:
Industrial Mechanical technology: Joint gatherings in 6-axis verbalized robots where minute loads and situating precision are basic. The bearing withstands fast increasing speed powers whereas keeping up repeatability.
CNC Machine Instruments: Rotating tables and ordering installations advantage from the tall unbending nature that stands up to cutting powers, keeping up machining resistances amid operation.
Medical Hardware: Imaging frameworks such as CT scanner gantries require smooth, calm revolution with defilement assurance given by the UU seal configuration.
Semiconductor Fabricating: Hardware requiring ultra-precision situating depends on the bearing's zero-backlash characteristics and dimensional stability.
Precision Instrumented: Measuring gadgets and optical hardware utilize the bearing's extraordinary runout exactness for dependable measurements.
Manufactured from high-carbon chromium bearing steel (GCr15, GCr15SiMn), these orientation experience specialized warm treatment forms for ideal hardness and wear resistance. The steel composition gives fabulous weakness life beneath cyclic stacking conditions.
Quality control includes dimensional precision confirmation, vibration testing, and stack capacity approval. Each bearing meets indicated resistance ranges for internal breadth, external breadth, and width estimations whereas keeping up concentricity requirements.
Precision grades from P6 (standard) to P2 (ultra-precision) oblige diverse application necessities. Higher accuracy grades offer more tightly dimensional resistances and made strides rotational exactness for basic applications.
The coordinates ring plan disentangles establishment compared to split-ring choices. Pre-machined mounting gaps acknowledge standard latches for coordinate connection to gear frames.
Proper establishment requires clean, level mounting surfaces and fitting latch torque values. The UU seals ensure inside components but require cautious taking care of amid establishment to anticipate damage.
Consider warm extension impacts in exactness applications, as the bearing's steel development will extend with temperature increments. Mounting courses of action ought to suit warm development whereas keeping up appropriate fit.
With 30 a long time of bearing industry involvement, we combine fabricating ability with comprehensive supply chain integration. Our generation capabilities cover standard heading up to φ5000mm external distance across whereas supporting custom arrangements for one of a kind applications.
Quality affirmation incorporates three-tier review covering crude materials, in-process confirmation, and last item testing. This orderly approach keeps up over 99.9% capability rates for transported products.
Our stock framework stocks over 1,000 standard bearing sorts, empowering 48-hour conveyance for customary orders. For custom necessities, our streamlined generation forms diminish conveyance times to 70% of industry averages.
Technical bolster envelops application investigation, establishment direction, and continuous upkeep proposals. Our building group helps with bearing determination based on your particular working conditions and execution necessities.

Whether you need immediate delivery of standard XU080120UU Cross roller bearing units or custom solutions for specialized applications, our team provides comprehensive technical assistance.
Contact our bearing specialists at auto@lyautobearing.com for application analysis, pricing information, and delivery scheduling. We'll help you select the optimal bearing configuration for your equipment requirements while ensuring reliable, long-term performance.
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