SD210AR0
1/2" Stainless Steel Constant Section Bearings
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Part No.
Part No.
SD210AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
3.83 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
21"
Bore diameter tolerance
-0.0018"– 0"
Outside diameter
22"
Outside diameter tolerance
-0.0018"– 0"
Width
0.5"
Width tolerance
+.000 –.010"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
21.37"
Outer Ring Dimensions
Outer ring large-side face inner diameter
21.7"
Outer ring small-side face inner diameter
21.63"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
4472 lbf
Radial static load rating
16981 lbf
Axial static load rating
12086 lbf
Static load moment
49020 lbf
Lubrication
Lubricated
Radial internal clearance
0.0000 – 0.0005"
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Brass
Environment & Compliance
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 5400.7
/ each
In Stock
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SD210AR0 Bearing Product Overview & Core Advantages
The SD210AR0 is a thin-section angular contact ball bearing engineered for applications demanding high precision and space optimization. As part of the Reali-Slim Stainless Steel Bearings series, it features a single-row design with a 30° contact angle, enabling it to support combined loads—significant radial loads and axial loads in one direction. Its stainless steel construction provides excellent corrosion resistance, while its inch-dimension design (21" bore) makes it ideal for compact, high-rigidity assemblies where weight and cross-section are critical constraints.
SD210AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SD210 | Denotes the Reali-Slim series thin-section bearing size (21" bore, 22" OD, 0.5" width). |
| A | Indicates a 30° contact angle, optimized for handling higher axial loads. |
| R0 | Specifies Radial Internal Clearance of 0.0000" – 0.0005". |
| Open (Seal Type) | No seals or shields, allowing for higher speeds and custom lubrication schemes. |
SD210AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single-row angular contact design with a 30° contact angle provides high rigidity and enables the bearing to support substantial combined radial and axial loads (Radial Dynamic: 4472 lbf, Axial Static: 12086 lbf).
- Precision & Stability: Manufactured to ABEC-1 tolerance class with tight bore and outside diameter tolerances, ensuring precise running accuracy and minimal runout for smooth operation.
- Corrosion-Resistant Construction: Both rings and balls are made from stainless steel, and the brass cage ensures reliable performance in corrosive or clean environments.
- Space-Saving Design: As a thin-section bearing, it offers a large bore diameter relative to its cross-section, saving weight and space without sacrificing performance.
SD210AR0 Bearing Typical Application Areas
- Aerospace & Defense: Gimbal systems, rotor heads, and actuator mechanisms.
- Robotics: Robot arm joints and precision rotary stages requiring high moment load capacity (Static Load Moment: 49020 lbf).
- Medical Equipment: MRI scanners, surgical robot arms, and rotary tables where corrosion resistance and precision are critical.
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages.
