636
600 Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
636
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
13.9 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
22 mm
Outside diameter tolerance
-0.008mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
637 lbf
Radial static load rating
256 lbf
Limiting speed
30 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.002mm to 0.013mm
Radial internal clearance
MC3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.13
/ each
In Stock
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636 Bearing Product Overview & Core Advantages
The 636 metric ball bearing is a precision-engineered single row deep groove ball bearing designed for reliable performance in a wide range of industrial applications. Its fundamental design excels at handling radial loads while also accommodating moderate axial loads in both directions. Manufactured to ABEC1 tolerance class, this bearing offers an excellent balance of precision, durability, and cost-effectiveness. Its compact dimensions (6mm bore, 22mm OD, 7mm width) make it an ideal solution for applications where space is constrained but dependable operation is critical.
636 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Significance |
|---|---|
| 636 | Standard bearing designation indicating a metric, single row deep groove ball bearing with a 6mm bore diameter. |
| Open (Seal Type) | No integral seals or shields, allowing for higher limiting speeds and easier re-lubrication. Requires a clean operating environment or external sealing. |
| MC3 (Internal Clearance) | Specifies a CN normal clearance group (0.002mm to 0.013mm), suitable for most general operating conditions. |
636 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The deep groove raceway and construction with 7 high-precision chrome steel balls provide a high radial dynamic load rating of 637 lbf and a static rating of 256 lbf, ensuring reliable performance under significant stress.
- High-Speed Capability: The stainless steel cage effectively retains and guides the balls, contributing to stable operation and a high limiting speed of 30,000 rpm. The open design minimizes friction and heat generation at high rotational velocities.
- Precision & Stability: Manufactured to ABEC1 precision class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing ensures smooth running and accurate shaft positioning, reducing vibration and noise.
- Material Durability: Components made from chrome steel (rings and balls) offer high hardness and wear resistance, while the stainless steel cage provides excellent corrosion resistance, enhancing the bearing's service life.
636 Bearing Typical Application Areas
This versatile ball bearing is commonly specified in:
- Electric Motors: Ideal for small to medium-sized motors requiring high-speed operation and reliable radial load support.
- Precision Instruments: Used in optical devices, measuring equipment, and medical instruments where low noise and smooth rotation are paramount.
- Office Automation Equipment: Found in printers, scanners, and copiers for spindle and roller support.
- Small Power Tools: Suitable for drills, grinders, and other handheld tools demanding durability in compact spaces.
- General Machinery: Applicable in various gearboxes, fans, and pumps as a fundamental rotary component.
