SKF 3309A

Product Description This 3309A/C3 bearing is a metric double row angular contact bearing without filling slots, with a steel cage, and a larger than normal radial internal clearance. The bearing's dimensions are 45x100x39.7. SKF Open Type Double Row Angular Contact Ball Bearings: Correspond...

Description

Product Description

This 3309A/C3 bearing is a metric double row angular contact bearing without filling slots, with a steel cage, and a larger than normal radial internal clearance. The bearing's dimensions are 45x100x39.7.

 

SKF Open Type Double Row Angular Contact Ball Bearings: Correspond to the design of two single row angular contact ball bearings side by side but occupying less space. They can accommodate radial loads as well as axial loads acting in both directions. They provide a rigid bearing arrangement and accommodate tilting moments well.

Benefits: Compact, rigid, accommodates tilting, radial and axial loads

Brand / Quality: SKF - High Quality

Seals / Shields: None

Clearance: * Standard

 

Double-row angular contact ball bearing for limited-space applications supporting radial loads, bidirectional thrust loads, and combined loads

Ball contact angle of 30 degrees relative to the inner and outer raceways increases thrust load capacity

Open configuration for lubrication applied in place

Sheet steel cage evenly spaces balls for reduced friction, vibration, and noise

P6 precision rating for high accuracy, high rotational speeds, and increased operating efficiency

 

This SKF Explorer 33 A series double-row angular contact ball bearing is an open bearing, and has a 30-degree contact angle, sheet steel cage, C3 clearance rating, and P6 precision rating. It supports radial loads, thrust loads in both directions, and combined loads, and occupies less axial space than a pair of single-row angular contact ball bearings mounted together. Because the two rows of rolling elements are mounted back-to-back, the bearing arrangement is relatively rigid and can accommodate tilting moments. The 33 A series does not have filling slots and has a larger cross section than the 32 A series, making it suitable for heavier loads and slower speeds. This bearing is made of low-alloy, through-hardened carbon chromium steel for durability and resistance to deformity under heavy loads. SKF Explorer bearings are manufactured under SKF's improved engineering processes, resulting in a longer service life, higher dynamic load carrying capacity, and a higher precision rating than standard SKF angular contact ball bearings. The 30-degree contact angle of the balls in relation to the raceways gives the bearing a greater capacity for supporting thrust loads over bearings with a standard contact angle of zero degrees. Its open design facilitates lubricating the bearing in place and dissipating heat. This bearing has a sheet steel crown-type cage to prevent the balls from coming into contact with each other during use, reducing friction, vibration, and noise. The bearing has a C3 axial internal clearance designation to indicate that the axial slack between the inner and outer rings is greater than the standard CN (normal) clearance. It allows for thermal expansion as the bearing supports radial loads and its balls, operating in the deep raceway geometry, reduce rotational friction. Additionally, the bearing has a dimensional and running accuracy to tolerance class P6 in accordance with International Organization for Standardization (ISO) 492:2002 for a higher level of precision than bearings manufactured to normal tolerances. ISO-rated ball bearings are manufactured to tight dimensional tolerances, making them useful in applications that require high accuracy, high rotational speeds, and increased operating efficiency. This angular contact ball bearing is for use in commercial and industrial applications including pumps and compressors, automotive drives, gearboxes, and printing machines, among others.

 

Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

 

SKF manufactures bearings, seals, and lubrication systems for automotive, OEM, energy, and other and industrial applications. The company, founded in 1907, is headquartered in Gothenburg, Sweden, and meets International Organization for Standardization (ISO) TS 16949 and 9001 standards for quality assurance.

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