-- SKF Authorized Engineering Partner
Ensure smooth, long-lasting radial load performance with this high-quality Cylindrical Roller Bearing designed to minimize downtime in industrial applications. Crafted from durable Bearing Steel with precision ratings from P0 to P2, it delivers reliable operation even under heavy loads, making it ideal for machinery that demands consistent performance.
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| Parameter | Details |
|---|---|
| Model Number | 688 |
| 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 |
| Trademark | BDL |
| Origin | Japan |
| HS Code | 8482102000 |
| Industry | Typical Applications |
|---|---|
| Automation Equipment | Conveyor systems, small electric motors |
| Mechanical Engineering | Power transmission components, gearboxes |
| Industrial Machinery | Pumps, fans, precision instruments |
Many procurement professionals face the same frustrating cycle: ordering bearings that don’t fit equipment due to inconsistent sizing standards, or dealing with premature failures from low-quality materials. When a bearing fails unexpectedly, it halts production, increases maintenance costs, and creates unnecessary downtime—especially in critical applications like automation systems and industrial machinery.
The BDL 688 deep groove ball bearing addresses these challenges with precision engineering and strict quality control. As a professional bearing supplier with ISO 9001-certified production processes, we ensure each bearing meets exacting standards for dimensional accuracy and material integrity. With dimensions of 8*22*7 mm and a single-row radial design, this bearing fits seamlessly into standard equipment configurations, reducing the risk of installation errors common with non-standard components.
Designed specifically for radial load environments, this bearing excels in applications where steady rotational motion is critical. Its bearing steel construction provides high durability, making it suitable for both low and moderate speed operations in temperatures typical of industrial settings. Whether used in conveyor systems, small electric motors, or power transmission components, the 688 model maintains stable performance under varying load conditions, minimizing vibration and noise during operation.
The precision rating options (P0 to P2) allow customization based on application requirements—from general industrial use (P0) to high-precision machinery (P2). The availability of seal types (ZZ, 2RS, Open) ensures adaptability to different environmental conditions: ZZ shields for dust protection in dry environments, 2RS seals for moisture resistance in humid settings, and open designs for applications requiring frequent lubrication. Vibration classes Z1V1 to Z3V3 further enable selection based on noise and smoothness requirements, critical for precision instruments and automation equipment.
Choosing the right bearing directly impacts operational costs. Inferior bearings with substandard material hardness or imprecise dimensions often fail early, leading to unplanned maintenance, equipment damage, and production losses. The BDL 688, constructed from high-grade bearing steel and manufactured to tight tolerances, resists wear and fatigue, extending service life and reducing replacement frequency. While initial costs may be higher than low-quality alternatives, the long-term savings in maintenance and downtime make it a cost-effective choice for reliability-focused operations.
Our commitment to quality starts with raw material inspection and continues through every production stage, including dimensional checks, hardness testing, and surface treatment verification. Each bearing undergoes rigorous testing to ensure compliance with industry standards, and we provide a warranty against manufacturing defects. With extensive inventory and support for OEM/ODM customization, we can fulfill both standard orders and specialized requirements, ensuring you get the right bearing when you need it.
Whether you need the BDL 688 deep groove ball bearing or require a specific brand or model, we can source and supply bearings that match your equipment specifications. Provide your application details, required quantity, and delivery location, and our technical team will assist in confirming the right bearing for your needs, ensuring compatibility and optimal performance.
Q: Do you supply bearings from other brands besides BDL?
A: Yes, we offer a full range of bearings including international brands (SKF, NSK, NTN, Koyo, etc.) and domestic quality brands. We can source and supply bearings according to your specified brand or model requirements.
Q: How can I confirm if the BDL 688 is compatible with my equipment?
A: Provide your equipment’s bearing dimensions (inner diameter, outer diameter, width) or existing model number, and our technical team will verify compatibility with the BDL 688 specifications.
Q: What is your warranty policy for bearings?
A: We provide a warranty period against manufacturing defects. Specific terms are outlined in the sales contract, and defective products can be replaced or returned within the warranty period.
Q: What is the minimum order quantity for the BDL 688 bearing?
A: We support low minimum order quantities, including small batches for trial purposes. Contact us with your required quantity for a tailored quote.
Q: How long does shipping take, and what logistics options are available?
A: In-stock items ship immediately. Shipping time depends on the destination: courier (3-7 days), air freight (5-10 days), or sea freight (20-40 days). We’ll recommend the most cost-effective option based on your timeline.
Q: Can you provide custom bearings (OEM/ODM) if the BDL 688 doesn’t meet my needs?
A: Yes, we support OEM/ODM customization. Provide your technical drawings, material requirements, or performance specifications, and we can manufacture bearings to your exact specifications.
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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.
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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.
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