When your heavy machinery demands reliable performance under extreme loads and challenging alignment conditions, the Spherical Ball Bearing 23056MB delivers the robust solution you need. This large-bore industrial bearing combines a 280mm inner diameter with advanced self-aligning technology, making it essential for applications where equipment reliability cannot be compromised. The MB designation indicates a machined brass cage design that significantly outperforms standard steel cages in high-vibration environments. With its ability to accommodate both massive radial loads and angular misalignment, this bearing addresses critical pain points in heavy industry operations.


Our engineering team has optimized every aspect of this bearing to meet demanding industrial requirements. The following specifications reflect years of field experience and customer feedback:
|
Bearing Designations
|
Boundary Dimensions(mm)
|
Basic Load Rating(KN)
|
Limiting Speed
(r/min)
|
Weight(kg)
|
||||
|
|
d
|
D
|
B
|
Cr
|
Cor
|
Grease
|
Oil
|
|
|
23236CA
|
180
|
320
|
112
|
1280
|
2120
|
900
|
1200
|
40.00
|
|
22336CA
|
180
|
380
|
126
|
1260
|
2270
|
900
|
1200
|
71.83
|
|
23038CA
|
190
|
290
|
75
|
745
|
1340
|
1300
|
1700
|
17.10
|
|
24038CA/W33
|
190
|
290
|
100
|
975
|
1800
|
950
|
1300
|
25.48
|
|
23138
|
190
|
320
|
104
|
788
|
1830
|
1000
|
1400
|
35.30
|
|
23138CA/W33
|
190
|
320
|
104
|
1200
|
2080
|
1000
|
1400
|
33.80
|
|
24138CA
|
190
|
320
|
128
|
1400
|
2500
|
600
|
750
|
41.60
|
|
22238
|
190
|
340
|
92
|
818
|
1510
|
1200
|
1600
|
37.00
|
|
22238/W33
|
190
|
340
|
92
|
818
|
1510
|
1200
|
1600
|
37.00
|
|
22238CA
|
190
|
340
|
92
|
1100
|
1700
|
1200
|
1600
|
34.20
|
|
23238CA/W33
|
190
|
340
|
120
|
1450
|
2400
|
850
|
1100
|
47.08
|
|
22338
|
190
|
400
|
132
|
1390
|
2530
|
850
|
1100
|
80.60
|
|
22338CA
|
190
|
400
|
132
|
1700
|
2600
|
850
|
1100
|
81.90
|
|
23040CA
|
200
|
310
|
82
|
880
|
1530
|
1200
|
1600
|
22.20
|
|
23040CA/W33
|
200
|
310
|
82
|
880
|
1530
|
1200
|
1600
|
22.20
|
|
24140CA
|
200
|
340
|
140
|
1580
|
2800
|
560
|
700
|
51.50
|
|
22240K
|
200
|
360
|
98
|
920
|
1740
|
1100
|
1500
|
43.10
|
|
22240K/W33
|
200
|
360
|
98
|
920
|
1740
|
1100
|
1500
|
43.10
|
Self-Aligning Design
The spherical raceway configuration automatically compensates for shaft deflection and housing misalignment up to 2.5 degrees. This feature prevents edge loading and premature fatigue that commonly affects rigid bearing assemblies in heavy machinery applications.
Machined Brass Cage Technology
The MB cage design offers superior performance compared to stamped steel alternatives. Brass provides lower friction coefficients, higher tensile strength, and excellent resistance to lubricant starvation during startup conditions. This translates to extended service life in demanding environments.
High Load Capacity
With dynamic load ratings reaching 1800 kN, this bearing handles extreme radial forces while supporting moderate axial loads in both directions. The optimized roller geometry distributes loads evenly across the raceway surfaces.
Precision Manufacturing
Available in multiple precision classes from P0 to P4, ensuring proper fit and reduced vibration levels. Our manufacturing process maintains tight dimensional tolerances per ISO 492 standards.

Mining and Aggregate Equipment
In crushing operations, the Spherical Ball Bearing 23056MB withstands extreme shock loads and debris contamination. The brass cage construction proves essential in jaw crushers and vibrating screens where standard steel cages frequently fail due to high g-forces.
Steel Rolling Mills
Roll neck applications advantage from the bearing's capacity to handle colossal outspread weights whereas compensating for roll twisting beneath stack. This avoids disastrous gear sticking and diminishes spontaneous downtime.
Heavy Mechanical Gearboxes
Large-scale gearbox applications require orientation that oversee low-speed, high-torque conditions. The brass cage's predominant warm conductivity makes a difference keep up lower working temperatures, amplifying upkeep interims significantly.
Construction Machinery
Excavators, cranes, and earth-moving hardware depend on this bearing's self-aligning properties to suit the energetic loads and misalignment inalienable in portable apparatus operations.
Proper Establishment Procedures
Due to the 280mm bore breadth, acceptance warming is the prescribed establishment strategy. Warm the bearing to 110°C (never surpassing 120°C) for simple shaft mounting. A mechanical press fit is not appropriate for heading of this size.
Lubrication Requirements
Oil shower or circulating oil frameworks work best for cooling and oil. When utilizing oil, select lithium complex definitions with extraordinary weight added substances to keep up satisfactory film thickness beneath overwhelming inactive loads.
Clearance Selection
Choose suitable inner clearance based on working conditions. C3 clearance suits high-temperature applications, whereas typical clearance works for standard conditions. Our specialized group can offer assistance you select the ideal configuration.

With 30 a long time of bearing industry involvement, we keep up strict quality control all through the generation handle. Our three-level review framework covers crude fabric confirmation, in-process checking, and comprehensive wrapped up item testing.
Each item experiences confirmation of 12 center execution markers, counting vibration testing and life cycle approval. This guarantees an ex-factory capability rate surpassing 99.9%.
Our fabricating capabilities back both standard generation and customized arrangements for extraordinary applications. We keep up stock of over 1,000 bearing sorts for quick conveyance of standard orders inside 48 hours.
Located in Luoyang, Henan, our office benefits from great coordinations network. We work a comprehensive supply organize combining self-owned generation offices with territorial warehousing centers.
For standard orders, our stock administration framework guarantees fast fulfillment. Custom applications get need planning through our measured generation forms, diminishing conveyance times to 70% of industry averages.
Our experienced designing group gives comprehensive specialized bolster all through the bearing lifecycle. Administrations incorporate on-site mapping for substitution applications, establishment direction, and execution checking recommendations.
We keep up a 24-hour specialized interview benefit to address critical questions and give investigating help. Normal on-site reviews offer assistance recognize potential issues some time recently they affect operations.
The Spherical Ball Bearing 23056MB represents our commitment to providing reliable, high-performance solutions for demanding industrial applications. Contact our technical team at auto@lyautobearing.com to discuss your specific requirements and receive detailed application recommendations.
Learn about our latest products and discounts through SMS or email