23088 CAK/W33

 

Dimensions

d	440 mm	Bore diameter
tΔdmp	0.0 – 0.063 mm	Deviation limits of mid-range bore diameter
tΔSL	0.0 – 0.063 mm	Deviation limits of tapered slope
D	650 mm	Outside diameter
tΔDmp	-0.075 – 0.0 mm	Deviation limits of mid-range outside diameter
B	157 mm	Width
tΔBs	-0.45 – 0.0 mm	Deviation limits of ring width
d2	≈511 mm	Shoulder diameter of inner ring
D1	≈590 mm	Shoulder/recess diameter of outer ring
b	22.3 mm	Width of lubrication groove
K	12 mm	Diameter of lubrication hole
r1,2	min.6 mm	Chamfer dimension
	Normal	ISO tolerance class for dimensions

Abutment dimensions

Da	max.627 mm	Diameter of housing abutment
ra	max.5 mm	Radius of fillet

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	3 831 kN
Basic static load rating	C0	6 550 kN
Fatigue load limit	Pu	450 kN
Reference speed		560 r/min
Limiting speed		1 000 r/min
Limiting value	e	0.22
Calculation factor	Y1	3
Calculation factor	Y2	4.6
Calculation factor	Y0	2.8

Tolerances of run-out

Range of section height at inner ring of assembled bearing	tKia	65 µm
Range of section height at outer ring of assembled bearing	tKea	120 µm
ISO tolerance class for geometrical tolerances		Normal

Radial internal clearance

Minimum initial clearance	330 µm
Maximum initial clearance	440 µm

23088 CAK/W33 Spherical Roller Bearing: Features
The 23088 CAK/W33 spherical roller bearing is engineered for heavy-duty industrial applications requiring high radial and axial load capacity. Its self-aligning design compensates for shaft misalignment and housing deflections, ensuring reliable performance under challenging operating conditions. The bearing incorporates a brass cage (denoted by "CA" in the model), which enhances durability and maintains roller alignment at high speeds. The "W33" suffix indicates the presence of a lubrication groove and three oil holes in the outer ring, enabling efficient grease distribution and extended service intervals. With a bore diameter of 440 mm and an outer diameter of 650 mm, this robust bearing suits large machinery where precision and longevity are critical.

Advantages for Demanding Environments
This bearing excels in applications subjected to shock loads, vibrations, or fluctuating temperatures. Its symmetrical rollers and optimized surface finish reduce friction, minimizing heat generation and energy consumption. The brass cage resists wear and deformation, even in contaminated environments, while the W33 lubrication system ensures consistent performance in high-load, low-speed scenarios. Additionally, the spherical roller design distributes stress evenly across the rollers, preventing premature fatigue. These features make the 23088 CAK/W33 ideal for industries like mining, cement production, and pulp/paper manufacturing, where equipment downtime translates to significant operational losses.

Typical Applications Across Industries
The 23088 CAK/W33 is widely used in heavy machinery such as vibrating screens, crushers, and gearboxes. In mining operations, it supports conveyor systems and rotary kilns exposed to extreme dust and load variations. The paper industry relies on this bearing for dryer sections and calendar rolls, where thermal expansion and moisture resistance are essential. It also serves wind turbine pitch/yaw systems, marine propulsion units, and steel mill rolling mills. Engineers favor this model for retrofitting aging equipment due to its backward compatibility and ability to withstand misalignment up to 2.5 degrees, reducing installation precision requirements.

NO.	d[mm]	D[mm]	B[mm]
23276 CA/W33	380	680	240
23092 CAK/W33	460	680	163
23092 CA/W33	460	680	163
239/500 CAK/W33	500	670	128
239/500 CA/W33	500	670	128
24180-2CS5K30/C3HGEA8	400	650	250
24180 ECAK30/W33	400	650	250
24180 ECA/W33	400	650	250
24088 ECAK30/W33	440	650	212
24088 ECA/W33	440	650	212
23996 CAK/W33	480	650	128
23996 CA/W33	480	650	128
23272-2CS5K/VT143	360	650	232
23272 CAK/W33	360	650	232
23272 CA/W33	360	650	232
23180-2CS5K/VT143	400	650	200
23180-2CS5/VT143	400	650	200
23180 CCK/W33	400	650	200
23180 CC/W33	400	650	200
23180 CA/W33	400	650	200
23088 CAK/W33	440	650	157
23088 CA/W33	440	650	157
22272 CAK/W33	360	650	170
22272 CA/W33	360	650	170
24176-2CS5K30/C3HGEA8	380	620	243
24176 ECAK30/W33	380	620	243
24176 ECA/W33	380	620	243
24084 ECAK30/W33	420	620	200
24084 ECA/W33	420	620	200
23992 CAK/W33	460	620	118

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