XU100140UU Precision Cross Roller Bearing

1. XU cross roller bearing:Roller and raceway: Cylindrical rollers are arranged in a 90-degree cross, and the raceway is V-shaped, which is in line contact and has strong rigidity and bearing capacity; Equipped with isolation block to prevent roller inclination and friction and stable torque.
Inner and outer ring design: the inner and outer rings are integral, without division, and the rigidity and rotation accuracy are more stable; Pre-set mounting holes (common countersunk holes/thread holes) on the end face, and install directly on the end face, saving space and parts.
2. Sizes:Inner Diameter: 100mm Outer Diameter: 140mm Width: 20mm
3.Performance Advantages:High radial, axial and moment load capacity in a single bearing; low friction coefficient for smooth rotation; excellent runout accuracy.
4.Material: Gcr15, Gcr15SiMn.
5. Application: Joints or rotating parts of industrial robots, rotary tables of machining centers, rotating parts of manipulators, precision rotary tables, medical machines, measuring instruments, IC manufacturing devices, etc.
6. Accurcy: P6, P0, P5, P4, P2.
Product Description

XU100140UU Precision Cross Roller Bearing - High-Rigidity Solution for Complex Motion Control

The XU100140UU Precision Cross Roller Bearing represents an advanced engineering solution for applications requiring exceptional rigidity and precision in compact designs. This integrated cross-roller bearing features cylindrical rollers arranged at 90° angles within V-groove raceways, delivering superior load-handling capabilities compared to conventional ball bearings. The "XU" designation indicates integrated inner and outer ring construction with pre-drilled mounting holes, while the "UU" suffix denotes dual rubber seals for contamination protection. Engineers choose this bearing when space constraints and precision requirements make traditional bearing arrangements impractical.

XU080120UU Cross roller bearing

Technical Specifications

Bearing Designations
Boundary Dimensions(mm)
Basic Load Rating(Axial)
Basic Load Rating(Radial)
Weight(kg)
 
d
D
dp
width
Ca
KN
Coa
KN
Gr
KN
Cor
KN
 
XU050077
40
112
77
22
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
101.6
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

Design Structure and Working Principle

Cross-Roller Configuration

The bearing employs cylindrical rollers positioned perpendicular to each other at 90° intervals. This arrangement creates line contact with the V-shaped raceway surfaces, distributing loads more effectively than point contact systems. Spacer blocks separate adjacent rollers, preventing skewing and maintaining consistent torque throughout rotation.

Integrated Ring Design

Both inner and outer rings feature solid, undivided construction that maximizes structural rigidity. Pre-machined mounting holes eliminate the need for separate housings or clamping arrangements, reducing assembly complexity and part count while improving concentricity.

Dual Sealing System

The "UU" configuration incorporates synthetic rubber lip seals on both bearing faces. These seals retain pre-applied grease while excluding dust, moisture, and other contaminants that could compromise performance in demanding environments.

Performance Advantages

Multi-Directional Load Capacity

The XU100140UU Precision Cross Roller Bearing simultaneously handles radial, axial, and moment loads within a single unit. This eliminates the need for multiple bearing arrangements, reducing design complexity and potential failure points in precision machinery.

Improved Rigidity

Line contact between rollers and raceways gives 3-4 times more noteworthy inflexibility compared to precise contact ball heading. This expanded solidness minimizes flexible distortion beneath stack, keeping up situating precision in high-precision applications.

Compact Installation

Direct mounting capability through coordinates gaps diminishes pivotal space prerequisites by up to 30% compared to customary bearing courses of action requiring partitioned lodgings or mounting flanges.

XU080120UU Cross roller bearing​​​​​​​

Primary Applications

Industrial Robotics

Robotic joint congregations utilize these heading for supporting tall minute loads created amid arm expansion and turn. The compact plan decreases generally robot weight whereas keeping up the firmness fundamental for tedious situating accuracy.

Precision Machine Tools

CNC rotational tables and ordering frameworks utilize these heading to withstand cutting powers and vibrations amid metal expulsion operations. The disposal of extra mounting components maximizes accessible workspace for workpiece positioning.

Medical Equipment

CT scanner gantries and X-ray situating tables advantage from the smooth turn and defilement security given by the double seal plan, guaranteeing artifact-free imaging comes about in sterile environments.

Semiconductor Manufacturing

IC manufacture gear requires the ultra-high exactness and cleanliness measures that the item conveys, supporting basic situating frameworks in lithography and assessment processes.

Installation and Maintenance

The coordinates mounting gaps acknowledge standard jolts for coordinate connection to mating surfaces. Appropriate establishment requires uniform jolt torque application to anticipate ring mutilation. The fixed plan gives maintenance-free operation beneath ordinary conditions, with oil recharging interims of 6-12 months in high-speed or hoisted temperature applications.

Quality Assurance

Our 30-year fabricating mastery guarantees steady quality through comprehensive testing conventions. Each item experiences vibration examination, dimensional confirmation, and life cycle approval some time recently shipment. Our three-level quality control framework keeps up an ex-factory capability rate surpassing 99.9%.

XU080120UU Cross roller bearing

Technical Support and Delivery

Luoyang Auto Bearing provides complete technical support for XU100140UU Precision Cross Roller Bearing selection, installation guidance, and application optimization. Standard inventory enables 48-hour delivery for immediate requirements, while our streamlined production processes accommodate custom specifications with shortened lead times.

For technical specifications, application guidance, or ordering information, contact our engineering team at auto@lyautobearing.com. Our experienced staff provides comprehensive support for your precision motion control requirements.

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