The 6005 bearing is one of the most widely used deep groove ball bearings due to its versatility, durability, and precise size profile. Whether you’re in the automotive, agricultural, industrial, or electrical motor sector, understanding this bearing’s meaning, specification, and size is essential for efficient mechanical design and maintenance.
In this guide from BYWB Bearing, we will answer key questions such as:
What is the 6005 bearing technical specification?
What size is a 6005 bearing?
What does 6005 bearing mean?
What is the 6005 bearing used for?
And provide a full 6000 series bearing size chart.
Let’s get started.
What is the Meaning of 6005 Bearing?
The designation 6005 follows the standard ISO bearing numbering system, where:
The first digit “6” indicates a single-row deep groove ball bearing, which supports both radial and axial loads.
The next two digits “00” represent the bearing series, which indicates the bearing’s robustness and load capacity.
The last digit “5” refers to the bore size, calculated as:
5 × 5 mm = 25 mm inner diameter.
So, the 6005 bearing meaning can be summarized as:
A deep groove ball bearing with a 25 mm bore, moderate radial load capacity, and single-row construction.
What Size is a 6005 Bearing?
The standard 6005 bearing dimensions are as follows:
| Parameter | Metric Size |
| Bore Diameter (d) | 25 mm |
| Outer Diameter (D) | 47 mm |
| Width (B) | 12 mm |
These compact dimensions make the 6005 bearing ideal for machines with limited installation space yet requiring high reliability and rotational efficiency.
6005 Bearing Technical Specification
Understanding the 6005 bearing technical specification is critical for selecting the right bearing for your application. Below is a breakdown of the common technical values:
| Specification | Value (Standard) |
| Bearing Type | Deep Groove Ball Bearing |
| Number of Rows | 1 |
| Cage Material | Steel / Nylon |
| Lubrication | Greased (sealed) or open |
| Dynamic Load Rating (Cr) | ~13.5 kN |
| Static Load Rating (Cor) | ~6.5 kN |
| Speed (Open) | Up to 15,000 RPM |
| Speed (Sealed) | Up to 9,000 RPM |
| Sealing Options | Open / 2RS / ZZ |
| Material | Chrome Steel GCr15 |
| Clearance Options | CN (standard), C3, C4 |
At BYWB, we offer these bearings with custom clearance, lubrication, and cage options to match your specific needs.
What is the 6005 Bearing Used For?
The 6005 bearing is widely used across a variety of industries and mechanical systems. Here’s a closer look:
✅ Automotive Applications
Alternators
Cooling fans
Starters
Water pumps
Gearboxes
✅ Electric Motors
General-purpose motors
Industrial fans
Compressors
HVAC systems
✅ Home Appliances
Washing machines
Vacuum cleaners
Dryers
✅ Industrial Equipment
Conveyor rollers
Agricultural machinery
Power tools
Textile machinery
Because of its low noise, low friction, and sealed protection, the 6005 bearing is especially useful in continuous operation environments.
Types of 6005 Bearings Available
To suit different environments and performance needs, the 6005 bearing comes in multiple configurations:
| Model | Description | Sealing |
| 6005 | Open type | None |
| 6005ZZ | Metal shields on both sides | Shielded |
| 6005-2RS | Rubber seals on both sides | Sealed |
⚙ BYWB Bearing Offers:
Custom grease: high-temp, food-grade, or general-purpose
Custom branding & packaging for distributors
Special heat treatment for extra hardness and fatigue life
6000 Series Bearing Size Chart
For your reference, here is a useful 6000 series bearing size chart, including common models near the 6005:
| Bearing | Bore (mm) | Outer Dia (mm) | Width (mm) |
| 6000 | 10 | 26 | 8 |
| 6001 | 12 | 28 | 8 |
| 6002 | 15 | 32 | 9 |
| 6003 | 17 | 35 | 10 |
| 6004 | 20 | 42 | 12 |
| 6005 | 25 | 47 | 12 |
| 6006 | 30 | 55 | 13 |
| 6007 | 35 | 62 | 14 |
| 6008 | 40 | 68 | 15 |
| 6009 | 45 | 75 | 16 |
This table helps users understand where the 6005 bearing fits within the 6000 series. It offers a mid-range balance between bore size and load handling.
Advantages of BYWB 6005 Bearings
1. High Precision & Performance
Vibration grades Z1V1 to Z4V4 available
Concentricity and roundness strictly controlled
2. Advanced Seal Technology
6005-2RS has contact seals with enhanced dirt & water resistance
6005ZZ features dust-tight metal shields with low drag
3. Superior Material & Heat Treatment
GCr15 bearing steel processed to HRC 60–64
Stainless steel and ceramic variants on request
4. Global Support and Supply
BYWB exports to North America, Europe, South America, and Southeast Asia
Fast production lead times and flexible MOQs
How to Choose Between 6005ZZ and 6005-2RS?
| Application Environment | Recommended Type |
| Dusty, dirty, or wet | 6005-2RS |
| Dry, clean, high-speed | 6005ZZ |
| With external lubrication | 6005 (Open) |
BYWB can help you choose the best type based on operating speed, lubrication type, and contamination risk.
Conclusion
The 6005 deep groove ball bearing is an essential component used across numerous mechanical systems, from motors to gearboxes to household appliances. With a compact 25×47×12 mm size and multiple sealing options, it’s a go-to bearing for engineers and manufacturers alike.
To summarize:
What is the 6005 bearing used for?
It’s used in motors, cars, pumps, appliances, and more.
What size is a 6005 bearing?
25 mm inner diameter, 47 mm outer diameter, and 12 mm width.
What does 6005 bearing mean?
A single-row deep groove ball bearing with a 25 mm bore, suitable for moderate radial and axial loads.
Why choose BYWB?
Reliable quality, OEM service, and tailored bearing solutions.
Looking for a trusted supplier of 6005 bearings or custom bearing solutions? BYWB Bearing is your global partner in performance and precision.
