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Zys Self-Aligning Roller Bearing/ Spherical Roller Bearing 21320W33 with Heavy Load
US$9.50-20.00
1 Piece
Sample price:US$9.00/piece.Request sample
Product profile
Customization
AvailableBreadth
90mmInner Diameter
170mmModel NO.
21320W33Rated Load
Cr:865kn Cor:1420knWeight
17.2kgOuter Diameter
260mmRolling Body
Roller BearingsThe Number of Rows
DoubleOuter Dimension
Medium and Large(120-190mm)Material
Bearing SteelSpherical
Aligning BearingsLoad Direction
Radial BearingSeparated
SeparatedTransport Package
Cases and Pallets or as Customer's RequirmentSpecification
customizedTrademark
ZYSOrigin
Luoyang, Henan, ChinaKey features
Heavy Load Capacity: Designed for continuous casting, mining, and wind turbines with high radial and axial load resistance.
Self-Aligning Feature: Compensates for coaxiality errors with two rows of rollers for superior stability.
High Precision Ratings: Available in P0, P5, P6, P4, and P2 precision grades for diverse industrial needs.
Diverse Clearance Options: Offers C0 through C5 clearance levels to match specific operating conditions.
Multiple Cage Materials: Available in Brass, Nylon, and Steel cages for different speed and temperature requirements.
ISO 9001 Certified: Manufacturing process and quality control certified under ISO 9001:2008 standards.
Customizable Packaging: Supports neutral, industrial, commercial, and custom OEM packaging designs.
OEM and Logo Services: Accepts custom LOGO, design, and package requirements for OEM orders.
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 1995-09-02 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.66h CertifiedTerms of Payment: LC, T/T
AI-Powered supplier vetting
SummaryLuoyang Bearing Research Institute Co., Ltd. is a China-based manufacturer established in 1993, with 708 employees and operations in Henan. Its stated business covers precision, special, large-size, slewing, wind-turbine, and other bearing products, as well as spindles, testing instruments, manufacturing equipment, and related materials. The supplier reports export activity since 1995, with exports representing 51%–70% of total sales. It has ISO9001:2008 and other certifications, more than 10 production lines, 26 years of R&D engineer experience, 50 quality-control staff, and stated annual production of 10 million angular-contact ball-bearing sets. The evidence supports strong manufacturing breadth, R&D specialization, and international operating experience. However, the provided information does not sufficiently establish after-sales service capability, financial credibility, customization performance, or specific customer cases.
Supplier typeThe supplier is explicitly identified as a manufacturer and operates as a limited company in Henan, China. Its stated business includes research, development, production, and sales of bearing products and related equipment.
CertificationsThe supplier reports holding an ISO9001:2008 certificate and other certifications. This provides explicit evidence of management-system certification, although the details and current validity of the additional certifications are not specified.
R&D capabilityThe supplier is described as a high-tech enterprise focused on high-end, precise, advanced, unique, and non-standard bearings. It conducts R&D on precision and special bearings, spindles, testing equipment, and materials, with 26 years of R&D engineer experience and involvement in industry standards, supporting a strong innovation profile.
Production capacityThe supplier has 708 employees, more than 10 production lines, and a broad product portfolio spanning special, precision, medium/large, sliding, and bearing-related products. It also reports annual production of 10 million angular-contact ball-bearing sets, providing explicit evidence of substantial production capability.
Customization capabilityThe supplier explicitly develops high-end, non-standard bearing products and serves key units across various national economic fields. This indicates capability to address specialized product requirements, but the slices do not provide specific examples of customer-customized projects or verified customization performance.
Product Q&A
Q:Are you a trading company or manufacturer?
A:
ZYS is a bearing manufacturer, the only first-class comprehensive research institute in China bearing industry.
Q:How do you control quality of bearing?
A:
ZYS has established quality control systems for each kind of bearing and spindle. All products and services passed ISO9001-2008 Quality Certificate.
Q:What is the MOQ?
A:
It depends on the bearing type. You can send inquiry or send e-mail for more information.
Q:How about the package?
A:
Industrial packing in general condition (Plastic tube+ carton+ pallet). Accept design package when OEM.
Q:How long is the delivery time?
A:
It will take about 10 to 40 days, depends on the model and quantity.
Send Inquiry
*To:
Luoyang Bearing Research Institute Co., Ltd.
Luoyang Bearing Research Institute Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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