SD120XP0

1/2" Stainless Steel Constant Section Bearings

SD120XP0 1/2" Stainless Steel Constant Section Bearings
SD120XP0 1/2" Stainless Steel Constant Section Bearings

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Part No.
Part No. SD120XP0

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Reali-Slim Stainless Steel
Construction Single Row
Weight 2.25 lbs
Tolerance class ABEC-1
Seal type Open
For load direction Four Point Contact

Main Dimensions

Bore diameter 12"
Bore diameter tolerance -0.0014"– 0"
Outside diameter 13"
Outside diameter tolerance -0.0014"– 0"
Width 0.5"
Width tolerance +.000 –.005"

Inner Ring Dimensions

Shoulder diameter inner ring 12.37"

Outer Ring Dimensions

Outer ring small-side face inner diameter 12.63"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 4178 lbf
Radial static load rating 8550 lbf
Axial dynamic load rating 6950 lbf
Axial static load rating 21380 lbf
Dynamic load moment 19590 lbf
Static load moment 53440 lbf
Rated load moment 19 ft-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: $ 507.45 / each
In Stock

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SD120XP0 Bearing Product Overview & Core Advantages

The SD120XP0 is a Four Point Contact thin section bearing engineered for applications demanding high precision and space optimization. Manufactured from stainless steel with a brass cage, this single-row ball bearing is designed to simultaneously withstand combined radial and axial loads. Its compact cross-section and ABEC-1 precision make it an ideal solution for high-reliability, compact assemblies requiring smooth motion and long service life.

SD120XP0 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Interpretation
SD120XP0 Model designation for a specific thin section bearing series.
Open (Seal Type) No integral seals, allowing for higher potential speeds and requiring a clean operating environment or external sealing.
Four Point Contact The bearing raceway is designed to support axial loads in both directions as well as radial loads from a single row of balls.
Lubricated Pre-lubricated from the factory for immediate operation, suitable for the specified temperature range.

SD120XP0 Bearing Structural Features & Performance Benefits

Compact & Lightweight Design: With a bearing cross-section of only 0.5" and a weight of 2.25 lbs, the SD120XP0 provides a significant weight and space savings in machinery design without sacrificing performance.

High Load Capacity: The Four Point Contact design enables the bearing to handle significant combined loads, including a high axial static load rating of 21,380 lbf, making it exceptionally versatile.

Corrosion Resistance & Precision: Constructed entirely from stainless steel (rings and balls), this bearing offers excellent corrosion resistance. Combined with ABEC-1 tolerance and tight radial internal clearance, it ensures smooth, precise rotation and low running torque.

Moment Load Capability: Engineered to support substantial moment loads, with a rated load moment of 19 ft-lbf, providing stability in applications subject to tilting forces.

SD120XP0 Bearing Typical Application Areas

  • Robotics and Automation: Rotary joints, robotic arms, and precision positioning stages.
  • Aerospace & Defense: Gimbals, radar platforms, and guidance systems where weight savings and reliability are critical.
  • Medical Equipment: MRI and CT scanners, surgical robots, and other high-precision medical devices.
  • Semiconductor Manufacturing: Wafer handling robots and precision stages requiring clean, precise motion.
  • Optical and Instrumentation: Rotary tables, mirror mounts, and scientific instruments.
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