SA045AR0
1/4" Stainless Steel Constant Section Bearings
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Part No.
Part No.
SA045AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
0.21 lbs
Tolerance class
ABEC-1
ISO radial rating
1410 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
4.5"
Bore diameter tolerance
-0.0008"– 0"
Outside diameter
5"
Outside diameter tolerance
-0.0008"– 0"
Width
0.25"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
4.686"
Outer Ring Dimensions
Outer ring large-side face inner diameter
4.865"
Outer ring small-side face inner diameter
4.814"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
637 lbf
Radial static load rating
1660 lbf
Axial static load rating
1580 lbf
Static load moment
4810 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:
$ 237.06
/ each
In Stock
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SA045AR0 Bearing Product Overview & Core Advantages
The SA045AR0 is a thin section angular contact ball bearing engineered for precision applications requiring minimal cross-section and high performance. Constructed entirely from stainless steel with a brass cage, it is designed to handle combined radial and axial loads simultaneously. Its ABEC-1 precision and compact design make it ideal for space-constrained, high-reliability systems where weight and corrosion resistance are critical factors.
SA045AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SA045 | Indicates a thin section bearing with a 4.5" bore diameter. |
| A | Signifies a 30° contact angle, optimized for handling significant axial loads. |
| R0 | Denotes Radial Internal Clearance of 0.0000 – 0.0005". |
SA045AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row angular contact design and 30° contact angle provide excellent rigidity and the ability to support substantial combined loads, including a high axial static load rating of 1580 lbf.
- Precision Performance: Manufactured to ABEC-1 tolerance class with tight dimensional control on bore, outside diameter, and width, ensuring smooth, precise operation.
- Corrosion Resistance & Durability: The use of stainless steel for both rings and balls, combined with a brass cage, offers superior corrosion resistance and longevity in harsh environments.
- Space-Saving Design: As part of the Reali-Slim series, it features an extremely thin cross-section (0.25" width) for a large bore, enabling compact and lightweight machinery designs.
SA045AR0 Bearing Typical Application Areas
- Robotics and Automation Arms
- Aerospace Actuation Systems
- Medical and Dental Equipment
- Precision Optical Positioning Devices
- Semiconductor Manufacturing Equipment
