22356 CC/C3W33 Bearing

 

Bore diameter	280 mm
Outside diameter	580 mm
Width	175 mm

Basic dynamic load rating	4 158 kN
Basic static load rating	5 200 kN
Reference speed	800 r/min
Limiting speed	1 100 r/min
SKF performance class	SKF Explorer

Number of rows	2
Locating feature, bearing outer ring	Without
Bore type	Cylindrical
Cage	Sheet metal
Radial internal clearance	C3
Tolerance class for dimensions	Normal
Tolerance class for run-out	P5
Sealing	Without
Lubricant	None
Relubrication feature	With
Candidate for remanufacturing	Yes

Product net weight	220 kg
eClass code	23-05-09-11
UNSPSC code	31171510

 

The 22356 CC/C3W33 is a spherical roller bearing designed for applications experiencing heavy loads and shaft misalignment. Its defining feature is the double row of spherical rollers running between a spherical outer ring raceway and two inner ring raceways. This unique design allows for self-alignment, compensating for angular misalignments between the shaft and housing. The "CC" designation typically indicates a pressed steel cage, while "C3" signifies a larger than normal internal radial clearance. "W33" often denotes lubrication holes and a lubrication groove in the outer ring, facilitating effective lubrication and extending bearing life.

The primary advantage of spherical roller bearings like the 22356 CC/C3W33 is their capacity to accommodate significant radial and axial loads in both directions, even under conditions of misalignment. The self-aligning capability minimizes stress concentrations and prevents premature wear caused by shaft deflection or housing distortions. The C3 internal clearance allows for thermal expansion and facilitates operation at higher speeds. The inclusion of lubrication features further enhances performance by ensuring proper lubrication distribution and preventing lubricant starvation.

Due to their robust design and ability to handle challenging operating conditions, 22356 CC/C3W33 spherical roller bearings find widespread use in heavy industrial applications. They are commonly found in mining equipment, such as crushers and conveyors, where heavy loads and shock loads are prevalent. They are also used extensively in paper mills, wind turbines, and heavy machinery used in the construction and metallurgical industries. Their ability to accommodate misalignment makes them particularly suitable for applications with long shafts or flexible housings.

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