22244 CCK/W33

 

Dimensions

d	220 mm	Bore diameter
tΔdmp	0.0 – 0.046 mm	Deviation limits of mid-range bore diameter
tΔSL	0.0 – 0.046 mm	Deviation limits of tapered slope
D	400 mm	Outside diameter
tΔDmp	-0.04 – 0.0 mm	Deviation limits of mid-range outside diameter
B	108 mm	Width
tΔBs	-0.08 – 0.0 mm	Deviation limits of ring width
d2	≈263 mm	Shoulder diameter of inner ring
D1	≈346 mm	Shoulder/recess diameter of outer ring
b	16.7 mm	Width of lubrication groove
K	9 mm	Diameter of lubrication hole
r1,2	min.4 mm	Chamfer dimension
	Normal	ISO tolerance class for dimensions

Abutment dimensions

Da	max.383 mm	Diameter of housing abutment
ra	max.3 mm	Radius of fillet

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	1 835 kN
Basic static load rating	C0	2 360 kN
Fatigue load limit	Pu	200 kN
Reference speed		1 500 r/min
Limiting speed		2 000 r/min
Limiting value	e	0.27
Calculation factor	Y1	2.5
Calculation factor	Y2	3.7
Calculation factor	Y0	2.5

Tolerances of run-out

Range of section height at inner ring of assembled bearing	tKia	10 µm
Maximum run-out of inner ring side face to the bore	tSd	11 µm
Range of section height at outer ring of assembled bearing	tKea	20 µm
Perpendicularity of outer ring outside surface	tSD	6.5 µm
ISO tolerance class for geometrical tolerances		P5

Radial internal clearance

Minimum initial clearance	180 µm
Maximum initial clearance	250 µm

22244 CCK/W33 Spherical Roller Bearing: Built for Heavy-Duty Misalignment Compensation
The 22244 CCK/W33 spherical roller bearing is engineered to manage high radial and moderate axial loads in applications prone to shaft misalignment. Its double-row barrel-shaped rollers and concave raceway design enable automatic alignment adjustments, accommodating angular deviations up to 3 degrees. The hardened chromium steel construction, combined with a robust pressed steel cage (CCK designation), ensures durability under shock loads and vibrations. Integrated lubrication grooves (W33 feature) and a solid oil-retention design simplify maintenance, making it suitable for harsh operating environments.

Key Advantages for Demanding Operations
This bearing excels in extending equipment lifespan by minimizing stress from misalignment and uneven load distribution. The optimized roller-to-raceway contact reduces friction and heat buildup, even at high rotational speeds. Its W33 lubrication system allows for consistent grease replenishment, preventing premature wear in dusty or high-moisture settings. With a dynamic load rating of 1,450 kN and static load capacity of 1,900 kN, the 22244 CCK/W33 outperforms standard bearings in shock resistance, making it ideal for industries requiring minimal downtime.

Wide-Ranging Industrial Applications
Commonly used in heavy machinery, the 22244 CCK/W33 is a staple in mining equipment like crushers and conveyor systems, where misalignment is inevitable. It's also critical in wind turbine gearboxes, paper mill rollers, and steel plant rolling mills that face extreme temperature fluctuations. The bearing's vibration-dampening properties make it suitable for pumps, compressors, and agricultural machinery. For industries prioritizing reliability in unpredictable conditions-such as marine propulsion or construction equipment-this bearing delivers unmatched performance, reducing repair costs and boosting operational efficiency.

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