Part Number | SS728 2RS |
System of Measurement | Metric |
Bearing Type | Ball |
For Load Direction | Combined Radial and Thrust |
Construction | Single Row |
Seal Type | Sealed |
Bore Dia | 8 mm |
Bore Dia Tolerance | -0.008 mm to 0 |
Outer Dia | 24 mm |
Outer Dia Tolerance | -0.009 mm to 0 |
Width | 8 mm |
Width Tolerance | -0.12 mm to 0 |
Shoulder Diameter Inner Ring (Large Side Face)(d1) | 13.1 mm |
Shoulder Diameter Inner Ring (Small Side Face)(d2) | 13.1 mm |
Shoulder Diameter Outer Ring (Large Side Face)(D1) | 18.9 mm |
Chamfer Dimension (r1 2)(min) | 0.3 mm |
Chamfer Dimension (r3 4)(min) | 0.2 mm |
Distance Pressure Point (a) | 7.8 mm |
Ring Material | 440C Stainless Steel |
Ball Material | 440C Stainless Steel |
Cage Material | Cotton fabric reinforced phenolic resin |
Dynamic Radial Load | 724 lbf |
Static Radial Load | 272 lbf |
Max Speed (X1000 rpm) | 25.2 |
Lubrication | Lubricated |
Temperature Range | -30° to 110 °C |
ABEC Rating | P6 (ABEC-3) |
ROHS | Compliant |
REACH | Compliant |
Ball Dia | 4.762 mm |
Ball Qty | 8 |
Weight | 0.015 kg |

SS728 2RS
Design Features of SS728 2RS
SS728 2RS is designed to support both radial and axial loads simultaneously, making it ideal for high-speed applications. SS728 2RS outer dia is 24 mm. Its bore dia is 8 mm. Its stainless steel construction ensures excellent corrosion resistance, enhancing durability in harsh environments.
What Benefits Can SS728 2RS Provide?
- High Load Capacity: It can support both radial and axial loads simultaneously, making it ideal for high-speed and high-precision applications.
- Corrosion Resistance: The stainless steel material offers excellent resistance to rust and corrosion, ensuring long-lasting performance in harsh environments.
- Durability: The design enhances durability and extends the bearing’s service life, reducing maintenance requirements and replacement costs.
- High-Speed Performance: It is suitable for high-speed machinery, offering smooth operation and reducing friction for better efficiency.
- Versatility: Ideal for use in various applications such as automotive, aerospace, and machine tools, where precision and reliability are crucial.
What Can SS728 2RS Be Used for?
- High-Speed Machinery: Used in high-speed equipment like motors, turbines, and spindles, where both radial and axial loads are present.
- Aerospace: Ideal for aerospace components that require high precision, reliability, and resistance to harsh environmental conditions.
- Automotive: Commonly used in automotive applications such as wheel hubs, gearboxes, and transmission systems, where robust and reliable performance is needed.
- Machine Tools: Employed in CNC machines, milling machines, and lathes to handle high precision and speed.
- Pumps and Compressors: Used in pumps and compressors for stable operation under axial and radial loads.
- Electric Motors: Used in electric motors, especially those with high rotational speeds, to reduce friction and increase efficiency.