SKF 22312
MB/W33
Spherical Roller Bearing · Heavy-Duty Series
Engineered for high radial loads, shock loads, and misalignment tolerance. The 22312 MB/W33 features a machined brass cage and oil groove with three lubrication holes -- built for the toughest industrial applications.
Built to spec. Proven by data.
Every parameter of the 22312 MB/W33 is engineered to ISO standards and verified through ISO 9001 / TS 16949 quality control.
Specifications
ISO 15:2017Premium Steel & Precision
- GCr15 / 100Cr6 through-hardened bearing steel for fatigue resistance.
- CNC-machined brass cage for high-speed stability and shock tolerance.
- Heat-treated raceways with HRC 58-62 hardness.
- Surface roughness ≤ Ra 0.1 μm on contact surfaces.
Compatible Spherical Roller Bearings
Performance you can measure.
Designed for the most demanding rotating equipment. Lower total cost of ownership through extended service life and proven reliability.
High Load Capacity
Dynamic load rating of 358 kN handles severe radial and axial loads simultaneously.
Extended Service Life
Optimized internal geometry delivers up to 2× longer L10 life under heavy operating conditions.
Misalignment Tolerance
Self-aligning design accommodates shaft deflection and mounting errors up to 1.5°.
Verified Authentic
Genuine SKF sourcing with full traceability documentation and serial verification.
Engineered for uptime.
Reduce unplanned downtime and extend maintenance intervals with bearings designed for predictable performance under extreme conditions.
Trusted across heavy industries.
Excavators, loaders, and crushers operating under heavy shock loads and dust exposure.
Vibrating screens, ball mills, and crusher gearboxes in continuous-duty mining environments.
Rolling mills, continuous casting machines, and conveyor rollers in high-temperature plants.
Cranes, port equipment, and large industrial gear drives requiring high radial capacity.
Belt conveyor pulleys and idlers in bulk-material handling and logistics operations.
Wind turbine gearbox, yaw, and pitch systems demanding extreme reliability under variable loads.
Stocked, organized, ready to ship.
Our Shanghai warehouse holds genuine SKF bearings across 500+ specifications, with rigorous storage controls for humidity, temperature, and traceability.
Trusted by industrial leaders worldwide.
"The 22312 MB/W33 has run flawlessly in our crusher gearbox for 18 months -- zero unplanned downtime. Documentation and authenticity check were perfect."
"Quick quote, fast shipment from Shanghai to São Paulo. The brass cage handled our vibrating screen loads better than the OEM unit it replaced."
"Full traceability documentation, ISO 9001 certificate, mill test reports -- everything our compliance team needed. WhatsApp response within an hour."
"Used in our wind turbine gearbox retrofit. The W33 oil grooves made re-lubrication easy during scheduled maintenance. Excellent thermal performance."
"Order-to-delivery was 12 days to Mumbai. Packaging was excellent and every bearing matched the specification on the certificate. Will reorder."
"Reliable partner for our steel rolling mill bearings. Consistent quality, transparent pricing, and fast quotation turnaround on multiple orders."
Frequently asked questions
Everything buyers ask about the SKF 22312 MB/W33.
What does the suffix "MB/W33" mean?
Is this a genuine SKF bearing?
What is the lead time and delivery range?
What is the minimum order quantity?
Can you provide custom modifications?
What documentation is included?
Ready to order your SKF 22312 MB/W33?
Reach our team on WhatsApp for instant pricing, stock confirmation, and shipping options. Dedicated account managers respond within 24 hours.