SG120AR0
1" Stainless Steel Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SG120AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
9.47 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
12"
Bore diameter tolerance
-0.0014"– 0"
Outside diameter
14"
Outside diameter tolerance
-0.0014"– 0"
Width
1"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
12.742"
Outer Ring Dimensions
Outer ring large-side face inner diameter
13.481"
Outer ring small-side face inner diameter
13.258"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
10481 lbf
Radial static load rating
24640 lbf
Axial static load rating
25780 lbf
Static load moment
71140 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:
$ 597.25
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
SG120AR0 Bearing Product Overview & Core Advantages
The SG120AR0 is a thin-section angular contact ball bearing engineered for applications demanding high precision and space optimization. Manufactured with stainless steel rings and balls, it offers excellent corrosion resistance. Its 30° contact angle is specifically designed to handle significant combined loads, efficiently supporting both radial and axial forces simultaneously. As part of the Reali-Slim series, it provides a high load capacity within an extremely compact cross-section, making it ideal for precision equipment where weight and space are critical constraints.
SG120AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SG | Indicates the bearing is part of the Stainless Steel, Thin-Section family. |
| 120 | Specifies the bore diameter of 12.0 inches. |
| A | Denotes the 30° contact angle, optimized for combined load support. |
| R0 | Specifies a standard radial internal clearance and open (unsealed) construction. |
SG120AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single-row angular contact design with a 30° contact angle provides high rigidity and is capable of supporting high radial dynamic load ratings (10,481 lbf) and axial static load ratings (25,780 lbf).
- Precision Engineering: Manufactured to ABEC-1 tolerance class with tight bore and outside diameter tolerances, ensuring smooth operation and high rotational accuracy.
- Corrosion Resistance & Durability: Constructed entirely from stainless steel for the rings and balls, this bearing is suitable for harsh environments and offers long-term reliability.
- Optimized Cage Design: The brass cage ensures stable ball guidance, contributing to smooth operation at moderate speeds and enhanced durability.
- Standard Lubrication: The bearing comes pre-lubricated, ready for immediate installation and operation within its specified temperature range.
SG120AR0 Bearing Typical Application Areas
This bearing is ideally suited for:
- Robotics and Automation arms and joints
- Aerospace control mechanisms and actuators
- Medical Equipment such as MRI and CT scanners
- Semiconductor Manufacturing equipment
- Precision Rotary Tables and indexing systems
