When your industrial equipment demands exceptional precision and load-bearing capacity, the Cross roller bearing XSU series delivers unmatched performance. These specialized bearings combine integrated inner and outer rings with pre-drilled mounting holes, eliminating installation complexity while providing superior rigidity. The product features cylindrical rollers arranged orthogonally at 90 degrees in V-groove raceways, enabling simultaneous support of radial loads, axial loads, and tilting moments in a single compact unit. This innovative design makes the bearings ideal for industrial robotics, precision machining centers, and medical equipment applications.

The product employs a monolithic design that integrates mounting functionality directly into the bearing structure. Unlike conventional bearings requiring separate housing assemblies, this series features precision-machined mounting holes in both rings.
The core working principle centers on crossed roller geometry. Cylindrical rollers are positioned perpendicular to each other within V-groove raceways, separated by spacers to prevent contact. This configuration creates multiple contact points that distribute loads across both radial and axial directions simultaneously.
The integrated ring structure eliminates tolerance stack-up issues common in multi-component assemblies. Direct mounting reduces installation time and ensures consistent performance characteristics across applications.
|
Bearing Designations
|
Boundary Dimensions(mm)
|
Basic Load Rating(Axial)
|
Basic Load Rating(Radial)
|
Weight(kg)
|
|||||
|
|
d
|
D
|
B
|
nB
|
Ca
KN
|
Coa
KN
|
Gr
KN
|
Cor
KN
|
|
|
XSU080168
|
130
|
205
|
25.4
|
12
|
66
|
240
|
42
|
96
|
3.3
|
|
XSU080188
|
150
|
225
|
25.4
|
16
|
71
|
275
|
46
|
110
|
3.7
|
|
XSU080218
|
180
|
225
|
25.4
|
20
|
77
|
315
|
49
|
175
|
4.3
|
|
XSU080258
|
220
|
295
|
25.4
|
24
|
84
|
375
|
54
|
151
|
5.1
|
|
XSU080318
|
280
|
355
|
25.4
|
28
|
93
|
465
|
59
|
185
|
6.3
|
|
XSU080398
|
360
|
435
|
25.4
|
36
|
106
|
590
|
68
|
236
|
7.8
|
|
XSU140414
|
344
|
484
|
56
|
24
|
229
|
520
|
146
|
250
|
28
|
|
XSU140544
|
474
|
614
|
56
|
32
|
270
|
680
|
170
|
330
|
38
|
|
XSU140644
|
574
|
714
|
56
|
36
|
290
|
800
|
185
|
395
|
44
|
|
XSU140744
|
674
|
814
|
56
|
40
|
315
|
930
|
200
|
455
|
52
|
|
XSU140844
|
774
|
914
|
56
|
40
|
340
|
1050
|
215
|
510
|
60
|
|
XSU141094
|
1024
|
1164
|
56
|
48
|
390
|
1360
|
246
|
670
|
77
|
The Cross roller bearing XSU series delivers measurable performance benefits through its engineered design:
Multi-directional Stack Taking care of: The crossed roller arrangement oversees complex stack combinations without requiring numerous bearing congregations. This diminishes framework complexity and support requirements.
Enhanced Unbending nature: Fundamentally ring development gives prevalent solidness compared to ordinary bearing courses of action. This characteristic demonstrates basic in exactness machining applications where avoidance influences portion quality.
Simplified Establishment: Pre-drilled mounting gaps kill the require for custom lodging manufacture. Coordinate bolt-mounting diminishes get together time and related labor costs.
Compact Profile: The plan accomplishes tall stack evaluations inside negligible pivotal space. This permits engineers to optimize gear envelope dimensions.
Precision Turn: Progressed fabricating forms guarantee amazing runout exactness and moo contact coefficients for smooth operation.
Robotics and Automation
Industrial robots utilize XSU arrangement heading in base joints and bear gatherings. The orientation keep up positional repeatability beneath fast increasing speed cycles whereas supporting overwhelming payloads. Their minute stack capacity guarantees arm soundness amid complex movement sequences.
CNC machining centers join these heading in rotational ordering tables. The tall inflexibility withstands cutting powers without compromising precise situating precision. Coordinate mounting disentangles table get together and decreases fabricating costs.
Medical Equipment
CT scanner gantries require smooth, calm revolution for picture quality. The XSU arrangement gives vibration-free operation whereas pleasing expansive bore necessities for understanding access.
Precision Instrumentation
Coordinate measuring machines and optical hardware advantage from the bearing's extraordinary exactness characteristics. Moo contact operation minimizes estimation blunders in touchy applications.
We make XSU arrangement heading utilizing high-grade GCr15 and GCr15SiMn bearing steels. These materials experience specialized warm treatment forms to accomplish ideal hardness and dimensional stability.
Our three-level quality control framework includes crude fabric review, in-process observing, and comprehensive last testing. Each bearing experiences vibration investigation and life testing to confirm execution parameters.
The fabricating handle incorporates exactness crushing operations that accomplish the required surface wrap up and geometric resiliences. This guarantees reliable execution over generation batches.
Our specialized group gives comprehensive application back for the item execution. We offer plan interview to optimize bearing choice for particular stack conditions and operational requirements.
Custom alterations oblige non-standard dimensional necessities or extraordinary execution characteristics. Our measured generation approach decreases conveyance times for customized solutions.
Installation direction guarantees appropriate mounting strategies and ideal execution. We give nitty gritty determinations and mounting proposals for different application scenarios.

With over 30 a long time of bearing fabricating involvement, we keep up broad stock of standard XSU arrangement setups for quick conveyance. Our supply chain integration capabilities guarantee reliable item availability.
Technical bolster expands all through the bearing lifecycle, from beginning determination through operation and upkeep. We give investigating help and substitution proposals to optimize hardware uptime.
For technical inquiries or application-specific requirements regarding the Cross roller bearing XSU series, contact our engineering team at auto@lyautobearing.com. We're committed to providing precision bearing solutions that enhance your equipment performance.
Learn about our latest products and discounts through SMS or email