-- SKF Authorized Engineering Partner
Ensure smooth, reliable axial load handling with our premium China Thrust Ball Bearing lineup, including models 51104, 51204, 51304, 51105, 51205, and 51305. These bearings deliver consistent performance under heavy loads, reducing downtime and extending equipment life for your machinery.
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
| Parameter | Details |
|---|---|
| Model Number | 6311-Zz |
| Seals Type | Zz, 2RS, Open |
| Precision Rating | P0, P6, P5, P4, P2 |
| Lubrication | Grease or Oil |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Service | OEM, ODM |
| Rows Number | Single |
| Aligning | Non-Aligning Bearing |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Contact Angle | 0° |
| Separated | Unseparated |
| Standard | DIN, GB, ISO, JIS, ANSI |
| Weight | 1.5 Kg |
| Transport Package | Carton, Pallet |
| Specification | 55*120*29 mm |
| Trademark | BDL Or other international brands |
| Origin | China |
| HS Code | 8482102000 |
| Production Capacity | 1000000 |
| Industry | Typical Applications |
|---|---|
| Automation Equipment | Conveyor systems, machine tool spindles |
| Automotive | Transmission components, wheel hubs |
| Industrial Machinery | Hydraulic pumps, electric motors |
| Steel冶金 | Rolling mill machinery, material handling equipment |
Many buyers face frustration when searching for thrust ball bearings that match exact dimensions and performance needs. Mismatched models lead to installation delays, while poor-quality bearings often fail prematurely under radial loads. Sourcing from multiple suppliers for different brands only adds complexity to the procurement process.
Our China thrust ball bearings, including models 51104, 51204, 51304, 51105, 51205, and 51305, address these challenges through ISO 9001-certified production and strict quality control. With a comprehensive inventory covering both standard and custom specifications, we support quick turnaround for orders of any size. These bearings excel in applications like automotive transmissions, hydraulic systems, and industrial machinery where reliable radial load handling is critical.
Designed as non-aligning radial bearings with a 0° contact angle, this series performs best in applications with moderate to heavy radial loads and minimal misalignment. Operating temperatures ranging from standard industrial environments to moderate heat conditions allow versatility across sectors. The single-row design ensures compact installation while maintaining structural integrity under continuous operation.
Constructed from high-grade bearing steel, these thrust ball bearings offer excellent surface hardness and wear resistance. The precision rating options (P0 to P2) allow customization based on application requirements—from general industrial use (P0) to high-precision machinery (P2). Available seal types (Zz, 2RS, Open) provide flexibility for environments with varying levels of contamination. The unseparated design simplifies installation and reduces maintenance complexity compared to split-bearing alternatives.
Choosing substandard thrust ball bearings often leads to increased total cost of ownership. Early wear from inferior materials causes equipment downtime, while imprecise dimensions can damage adjacent components. Our bearings undergo rigorous testing for dimensional accuracy, hardness, and surface finish, aligning with ISO standards to ensure predictable performance. Properly selected bearings reduce maintenance frequency and extend equipment lifespan, delivering long-term value beyond initial cost savings.
Our manufacturing process adheres to ISO 9001 standards, with raw material inspection and finished product testing for dimensions, hardness, and surface treatment. We provide a warranty against manufacturing defects, ensuring customer confidence in every order. With access to both our BDL brand and other international brands, we can fulfill orders according to specific brand or certification requirements. Our extensive inventory enables quick shipment, minimizing lead times for urgent replacements.
Whether you need the 51104, 51204, 51304, 51105, 51205, or 51305 model—or any other thrust ball bearing specification—contact us with your requirements. Provide the model number, dimensions, quantity, and application details for a tailored quote and availability check. The sooner you confirm your order, the sooner we can arrange delivery to keep your operations running.
Q: Can you source other bearing brands or models not listed?
A: Yes, we support procurement of all major international and domestic brands. Simply provide the required brand, model, or dimensions for availability and pricing.
Q: How do I confirm if this bearing fits my equipment?
A: Share your equipment’s bearing requirements (dimensions d x D x B, load capacity, or existing model number), and our technical team will verify compatibility.
Q: What is your warranty policy?
A: We offer a warranty against manufacturing defects. Specific terms are outlined in each order’s contract, with replacement or refund options for verified issues.
Q: What is the minimum order quantity?
A: We accept low minimum orders, including single-unit purchases for emergency replacements, with volume discounts available for larger quantities.
Q: How long does shipping take?
A: In-stock items ship within 2 business days. Shipping time depends on method: express courier (3-5 days), air freight (5-7 days), or sea freight (20-30 days).
Q: Do you offer custom bearing solutions?
A: Yes, OEM and ODM services are available for custom dimensions, materials, or specifications. Provide your technical drawings or requirements for a feasibility assessment.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
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Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
-- Get In Touch
Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Regarding: China Thrust Ball Bearing 51104 51204 51304 51105 51205 51305
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