Single Row Deep Groove Ball Bearings
Single row deep groove ball bearings are the most widely used rolling-element bearing type, designed to handle radial loads and moderate axial loads in both directions. On this page, you’ll find an extensive selection of single row radial ball bearings in both metric and inch sizes, covering bore diameters from 10 mm to 1,500 mm and from 0.125″ to 2.756″. Our product list includes open, shielded (ZZ / 2Z), and sealed (2RS1) variants with multiple clearance options (C2, CN, C3, C4) and tolerance grades from ABEC 1 / P0 to P6. Whether you need a standard SKF-style replacement for a 6206-2Z/C3, or a custom-manufactured non-standard size, TFL helps you source the right single row ball bearings — inspected and coordinated for on-time delivery. Browse the product list below to find your model, or send us your bearing number for a quick quote.
Highly Versatile for Radial & Axial Loads
Excellent High-Speed Capability
Cost-Effective and Readily Available
Single Row Deep Groove Ball Bearings Selection Guide & Product Overview
What Are Single Row Deep Groove Ball Bearings?
A single-row deep groove ball bearing is a radial rolling bearing featuring a non-separable design with deep, uninterrupted raceway grooves. The high level of conformity between the rolling elements (balls) and the raceway curves allows this bearing type to efficiently support significant radial loads alongside moderate bidirectional axial forces, making it the most versatile and ubiquitous bearing configuration in modern rotating machinery.
Compared to alternative configurations—such as double-row or flanged variants—standard single-row bearings provide the most cost-effective and reliable balance of low starting torque, high-speed capability, and ease of installation. When correctly selected and sealed, they operate with minimal friction, require zero maintenance, and span an exceptionally wide size spectrum, from miniature instruments up to heavy-duty industrial units.
Key takeaway: The vast majority of standard rotating equipment relies on standard single-row deep groove ball bearings. If you are replacing a standard bearing that does not require an outer flange, a loading notch, or a snap-ring, the models cataloged on this page are the direct engineering replacements you need.
Product Range & Model Options
Our product list covers standard single-row deep groove ball bearing alternatives across both metric and inch measurement systems:
| Measurement System | Typical Series | Bore Range | Example Models |
|---|---|---|---|
| Metric | 6000, 6200, 6300, 61800, 618/… | 10 mm – 1,500 mm | 6004, 6206-2Z/C3, 6219, 618/1500 TN |
| Inch | R Series, EE Series, RLS Series, 400 Series | 0.125″ – 2.756″ | R4ZZ, EE 2 TN9, RLS 4-2Z, 414M |
Within each series, our range includes multiple design configurations tailored to specific operating environments:
- Seal / Shield Options: Open variants (for oil-bath or external re-lubrication systems), non-contact metal shields (ZZ / 2Z) for low-friction protection against larger particles, and contact rubber seals (2RS1 / 2RS) for maximum defense in high-moisture or dusty environments.
- Internal Radial Clearance: CN (standard), C2 (reduced radial play for high precision), C3 (greater than normal—critical for preventing thermal seizure in electric motors and high-temperature shafts), and C4.
- Tolerance Grades: ISO P0 / ABEC 1 for general industrial applications; ISO P6 / ABEC 3 for applications demanding lower vibration levels and tighter running accuracy.
- Cage Materials: Pressed steel (standard for general use), engineered polyamide/nylon (TN9 for ultra-low noise, reduced weight, and high speeds), or pressed stainless steel.
- Specialist Configurations: Ceramic hybrid bearings featuring silicon nitride (Si3N4) balls to prevent electrical erosion (common in VFD motors) and support higher limiting speeds; Solid Oil filled variants for extreme washdown environments or hard-to-access machinery.
💡 Cross-Reference & Interchange Advice
If you have an existing manufacturer part number—whether it is an SKF, FAG, NSK, or any other industrial brand—simply send it to our team. We will cross-reference the complete nomenclature and provide a TFL equivalent with identical boundary dimensions, clearance classes, cage configurations, and seal performance specifications. Most standard single-row deep groove bearings have direct, drop-in equivalents across major global brands.
Typical Applications
Standard single-row deep groove ball bearings are the workhorses of industrial machinery. Our alternative range is frequently specified and sourced for:
- Continuous-Duty Electric Motors & Generators — the primary application; standard models such as 6204-2Z/C3, 6205-2Z/C3, and 6206-2Z/C3 are universally deployed to support motor shafts from fractional up to heavy-duty industrial sizes.
- Pumps & Compressors — open and sealed variants selected according to the oil or grease lubrication system; typically utilizing 62xx and 63xx metric series.
- Gearboxes & Power Transmission — utilizing medium-to-heavy series to support combined radial and axial thrust loads.
- Agricultural Implements — contact rubber-sealed (2RS1) versions engineered to withstand dusty, muddy, and wet outdoor conditions, often utilizing C3 clearance to accommodate shaft deflection and thermal growth.
- Conveyors & Material Handling Systems — sourcing both metric and inch sizes depending on regional equipment origin and conveyor roll designs.
- HVAC Equipment, Fans & Blowers — low-noise configurations utilizing shielded or sealed options to ensure quiet, long-term operation.
- Automotive Auxiliaries — including alternators, water pumps, tensioner pulleys, and steering columns.
- General Industrial Machinery — including high-speed textile machinery, packaging equipment, and woodworking tools.
Find Your Bearing — Request a Quote
Browse the product list below to locate your model, or send us your existing part numbers, dimensions, or application conditions. We will respond promptly with pricing, lead times, and technical datasheets.
How to Choose from the Product List
To identify the correct bearing configuration from our product list, we recommend following this engineering-led selection process:
- Verify Boundary Dimensions. Measure or identify the required bore diameter (inner diameter), outside diameter, and width. Because most standard bearings conform strictly to ISO or AFBMA boundary dimensions, matching these three parameters is the fastest way to isolate your model.
- Confirm the Measurement System. Our list comprises both metric and inch configurations. For European or Asian machinery, metric series (6000, 6200, 6300) are standard. For North American or classic British machinery, locate your part within the R, EE, or RLS inch series.
- Select the Closure Method. Align the bearing’s protection level with your operating environment:
- Open — for direct oil-bath lubrication or where highly effective external housing seals are already in place.
- Shielded (ZZ / 2Z) — provides solid dust exclusion, generates very low friction, and supports high limiting speeds.
- Sealed (2RS1 / 2RZ) — offers contact seals for maximum defense against moisture, chemical washdowns, and fine particulates. These are pre-greased for maintenance-free operation.
- Evaluate Internal Clearance. CN is the default for standard fits and moderate temperatures. Specify C3 if your bearing will operate under heavy interference fits, high-speed rotations, or high temperatures (such as on rotor shafts), as the extra clearance prevents thermal binding.
- Compare Dynamic and Static Load Ratings. Ensure the dynamic (C) and static (C0) load limits align with your calculated operating stresses. Note that contact-sealed bearings (2RS1) generally have lower maximum limiting speeds than open or shielded equivalents due to frictional heat generated at the seal lip.
Not sure which specification fits your application? Read our step-by-step bearing selection guide for a deeper technical walkthrough—or simply contact us with your operating data, and our technical team will identify the ideal equivalent model.
Why Source Single Row Deep Groove Ball Bearings from TFL
SDTFL Bearing (TFL) is a specialized sourcing partner and independent supplier dedicated to helping industrial procurement managers and distributors source reliable alternatives efficiently:
- Broad Model Coverage: We support thousands of standard single-row deep groove ball bearing configurations across both metric and inch lines. We maintain active sourcing pathways for hard-to-find or oversized industrial units up to 1,500 mm in bore.
- Cross-Brand Compatibility: TFL alternatives are sourced as dimensional and performance equivalents to SKF-style, FAG-style, and Kaydon-style numbers. If you have an existing part number, we will match its dimensions, clearances, and seal specifications exactly.
- Quality Assurance and Pre-Shipment Inspection: To guarantee reliability, every batch of bearings is rigorously inspected at our facility. Our QA engineers verify correct model markings, quantities, sealing lip integrity, packaging quality, and perform baseline dimensional/play checks before dispatch.
- Custom & OEM Support: If standard catalog items cannot meet your requirements, we can coordinate custom clearance, unique cage materials, private labeling, and customized packaging according to your project volume.
- Consolidated Logistics: We streamline your supply chain by consolidating multiple factory orders, performing visual and dimensional inspections under one roof, and coordinating a single, organized shipment to your destination.
TFL is an independent bearing supplier. Brand names and part numbers mentioned on this page (SKF, FAG, Kaydon, and others) are trademarks of their respective owners and are used for cross-reference and interchange identification purposes only. TFL bearings are not manufactured by or affiliated with those brand owners unless explicitly stated.
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