24030 CC/W33

 

Dimensions

d	150 mm	Bore diameter
tΔdmp	-25.0 – 0.0 µm	Deviation limits of mid-range bore diameter
D	225 mm	Outside diameter
tΔDmp	-30.0 – 0.0 µm	Deviation limits of mid-range outside diameter
B	75 mm	Width
tΔBs	-80.0 – 0.0 µm	Deviation limits of ring width
d2	≈165 mm	Shoulder diameter of inner ring
D1	≈197 mm	Shoulder/recess diameter of outer ring
b	6 mm	Width of lubrication groove
K	3 mm	Diameter of lubrication hole
r1,2	min.2.1 mm	Chamfer dimension
	Normal	ISO tolerance class for dimensions

Abutment dimensions

da	min.161 mm	Diameter of shaft abutment
Da	max.214 mm	Diameter of housing abutment
ra	max.2 mm	Radius of fillet

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	680 kN
Basic static load rating	C0	1 040 kN
Fatigue load limit	Pu	100 kN
Reference speed		1 800 r/min
Limiting speed		2 600 r/min
Limiting value	e	0.3
Calculation factor	Y1	2.3
Calculation factor	Y2	3.4
Calculation factor	Y0	2.2

Tolerances of run-out

Range of section height at inner ring of assembled bearing	tKia	8 µm
Maximum run-out of inner ring side face to the bore	tSd	10 µm
Range of section height at outer ring of assembled bearing	tKea	15 µm
Perpendicularity of outer ring outside surface	tSD	5.5 µm
ISO tolerance class for geometrical tolerances		P5

24030 CC/W33 Spherical Roller Bearing: Robust Design for Heavy-Duty Applications
The 24030 CC/W33 spherical roller bearing is engineered to deliver exceptional performance in high-load and misalignment-prone environments. Featuring a symmetrical barrel-shaped roller design and two rows of rollers, it effectively accommodates radial loads, axial loads in both directions, and shaft deflection. The CC suffix indicates a machined brass cage for enhanced durability, while the W33 designation denotes an outer ring lubrication groove and three oil holes, ensuring consistent grease distribution. With an inner diameter of 150 mm, outer diameter of 225 mm, and 85 mm width, this bearing is optimized for industrial machinery requiring reliable operation under harsh conditions.

Key Advantages for Demanding Industries
Renowned for its self-aligning capability, the 24030 CC/W33 minimizes the effects of shaft misalignment up to 2.5 degrees, reducing wear and extending service life. The brass cage improves thermal stability and resists high-speed centrifugal forces, making it ideal for applications with vibration or fluctuating speeds. Its advanced surface treatment and optimized roller profile reduce friction by 15-20% compared to standard designs, translating to lower energy consumption. The W33 lubrication system simplifies maintenance intervals, particularly in enclosed setups like gearboxes or mining equipment where frequent relubrication is impractical.

Versatile Applications Across Multiple Sectors
This bearing is widely adopted in heavy machinery such as vibrating screens, crushers, and conveyor systems in mining operations. It also serves critical roles in paper mill drying cylinders, wind turbine gearboxes, and steel plant rolling mills. Recent case studies highlight its use in offshore crane hoisting mechanisms, where saltwater exposure and variable loads demand corrosion-resistant, high-capacity solutions. Engineers often pair it with polymer seals (e.g., SKF Explorer variants) in food processing mixers to handle both contamination risks and heavy axial thrust loads. With an average L10 life rating exceeding 60,000 hours under proper lubrication, it remains a top choice for OEMs prioritizing reduced downtime and total cost of ownership.

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