-- SKF Authorized Engineering Partner
Ensure smooth, reliable performance for your machinery with this high-quality Cylindrical Roller Bearing, designed to handle radial loads with precision and durability. Crafted from premium bearing steel and available in precision ratings from P0 to P2, it minimizes vibration (Z1V1 to Z3V3) and supports both grease and oil lubrication, reducing maintenance hassle and extending equipment lifespan.
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
| Parameter | Details |
|---|---|
| Model Number | 685 |
| Bearing Type | Deep Groove Ball Bearings |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Seals Type | Zz 2RS Open |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 P2 |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Specification | 8*22*7 mm |
| Origin | Japan |
| HS Code | 8482102000 |
| Industry | Typical Applications |
|---|---|
| Automation Equipment | Conveyor systems, small electric motors |
| Automotive | Accessory drives, instrumentation |
| General Machinery | Pumps, gearboxes, textile machinery |
Finding the right bearing replacement can be a hassle when dealing with multiple brands and dimensional standards. Many buyers face issues like incorrect fit leading to installation delays or premature failure due to poor material quality. Sourcing from different suppliers for various brands also wastes valuable time in comparing quotes and delivery times.
This deep groove ball bearing addresses these challenges with its interchangeable dimensions and adherence to international standards. As a professional bearing supplier with ISO 9001 certified processes, we ensure each unit meets strict quality criteria for material hardness and precision. Our extensive inventory covers both自有 brand and major international brands like Koyo and Timken, allowing you to source all required bearings from a single partner.
Designed specifically for radial load conditions, this bearing operates efficiently in machinery where rotational accuracy and low friction are critical. Its single-row configuration makes it suitable for high-speed applications such as electric motors and conveyor systems, where consistent performance under varying speeds is essential. The bearing’s vibration grades (Z1V1 to Z3V3) ensure smooth operation, reducing noise and extending equipment lifespan.
The bearing steel construction provides excellent durability and resistance to wear, ensuring long service life even in continuous operation. Available precision ratings from P0 to P2 allow selection based on application requirements—higher precision grades like P4 and P2 are ideal for machinery where minimal runout is necessary, such as precision gearboxes. The versatile seal options (ZZ, 2RS, Open) accommodate different environmental conditions, with 2RS seals offering effective protection against contamination in dusty or moist environments. Lubrication flexibility (grease or oil) allows adaptation to specific operating temperatures and speed requirements.
Selecting a high-quality bearing like this model helps avoid the hidden costs associated with frequent replacements and unplanned downtime. Inferior bearings often fail early due to substandard materials or imprecise manufacturing, leading to production interruptions and additional labor expenses for repairs. By investing in bearings that meet strict quality standards, you reduce the risk of equipment damage caused by premature bearing failure. Our ISO 9001 compliant production and inspection processes ensure each bearing delivers reliable performance, contributing to lower overall maintenance costs over time.
Our commitment to quality starts with rigorous原材料检验 and continues through every stage of production. Each bearing undergoes dimensional accuracy checks, hardness testing, and surface treatment evaluation to ensure compliance with specifications. We provide a warranty period covering manufacturing defects, with clear terms for returns and replacements. With access to a wide range of brands and models, we can fulfill orders for both standard and hard-to-find bearings, supporting your procurement needs with minimal lead times.
Whether you need this specific model or other bearing types, we can provide competitive pricing and availability. Simply share the required model number, dimensions, and quantity, and our team will promptly respond with a detailed quote. With our extensive network of suppliers, we can also source bearings from other major brands to meet your exact specifications.
Q: Do you supply bearings from other brands besides those mentioned?
A: Yes, we support inquiries for all major international and domestic brands, including SKF, NSK, NTN, NACHI, IKO, FAG, and others, as well as custom specifications.
Q: How can I confirm if this bearing will fit my equipment?
A: Provide your equipment model or the required dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the bearing specifications.
Q: What is your warranty policy for bearings?
A: We offer a warranty period covering manufacturing defects. Specific terms and duration are detailed in each sales contract, with options for returns or replacements as applicable.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum order quantities, including single-unit purchases, to support small-scale maintenance needs or trial installations.
Q: How quickly can you ship after an order is placed?
A: Stock items are shipped within 1-2 business days. For special orders or large quantities, lead times will be specified in your quote.
Q: Do you offer OEM or ODM services for bearings?
A: Yes, we support custom bearing manufacturing according to provided drawings, specifications, or samples for OEM and ODM requirements.
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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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: Koyo Timken N244em N248em Cylindrical Roller Bearing
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SKF Authorized Engineering Partner
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