KB070AR0 is an imperial KB series 30° angular contact open cross-section bearing with a thin cross-section, which reduces weight and saves space. Standard configuration includes GCr15 bearing rings and a brass cage. It can be paired with stainless steel or ceramic rolling elements, offering smooth rotation and high precision. It is suitable for servo indexing, optical gimbals, and medical rotary equipment.
Dimensions in Inches | Capacities in Pounds |
Approx.Wt. In lbs. |
Size
| Land Diameters | Dynamic | Static |
Bore | Outside Dia. | L1 | L2 | C’BoreL3 | ISO Radial | Thrust | Radial | Thrust |
7.000 | 7.625 | 7.231 | 7.893 | 7.456 | 2,347 | 2,980 | 3,450 | 9,960 | .50 |
The standard configuration for thin Section Bearings is a grease lubrication system, with standardized proportions for grease components and filling amounts.For standard models, the amount of grease filling is 30%–50% of the effective volume of the inner cavity. This range can avoid the temperature rise problem caused by excessive grease, while ensuring sufficient film formation on the friction pair.The ratio of base oil to thickener has been calibrated, resulting in stable oil film adhesion and a sustained reduction in the coefficient of friction between rolling elements and raceways.Combined with a double-sided sealing structure, it can inhibit grease oxidation and leakage, extend the lubrication cycle, reduce the need for additional grease under normal operating conditions, and ensure long-term operation.
Thin Section Bearings provide a uniform load distribution during dynamic operation, making them suitable for medium- and high-speed, medium- and small-scale alternating load conditions.P4 and P5 levels correspond to different rotational runout limits, and the vibration amplitude is controllable during high-speed operation.The rolling elements and raceways maintain stable contact, resulting in low frictional loss and a gradual temperature rise during continuous operation.The internal lubricating film can be maintained intact under dynamic pressure, effectively preventing dry friction.There are no obvious shocks or abnormal noises during start-up, shutdown, and speed change. The dynamic response is stable and it can maintain operating accuracy for a long time, making it suitable for various transmission mechanisms for continuous operation.
Application Areas:
1. Precision Automation and Robotics
2. Food/Pharmaceutical/Medical Equipment (Clean and Corrosion Protection)
3. Semiconductor/Electronics Manufacturing Equipment (Dust-Free, High-Speed)
4. Marine/Outdoor/Corrosion-Resistant Equipment
5. High-Speed Light Industrial/General Precision Machinery
6. Aerospace/Military Precision Components
