23140-2CS5K/VT143

 

Dimensions

d	200 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	340 mm	Outside diameter
tΔDmp	-0.04 – 0.0 mm	Deviation limits of mid-range outside diameter
B	112 mm	Width
tΔBs	-0.08 – 0.0 mm	Deviation limits of ring width
d2	≈227 mm	Shoulder diameter of inner ring
D1	≈306 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.3 mm	Chamfer dimension
	Normal	ISO tolerance class for dimensions

 

Abutment dimensions

da	max.227 mm	Diameter of shaft abutment
Da	max.326 mm	Diameter of housing abutment
ra	max.2.5 mm	Radius of fillet

 

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	1 668 kN
Basic static load rating	C0	2 360 kN
Fatigue load limit	Pu	204 kN
Limiting speed		420 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	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	160 µm
Maximum initial clearance	220 µm

23140-2CS5K/VT143 Spherical Roller Bearing: Robust Performance for Demanding Applications
The 23140-2CS5K/VT143 spherical roller bearing is engineered for heavy-duty industrial environments requiring exceptional load capacity and durability. Featuring a self-aligning design, this bearing compensates for shaft misalignment and housing deformation, ensuring smooth operation under high radial and axial loads. Its advanced VT143 sealing technology provides superior protection against contaminants like dust, moisture, and debris, while the 2CS5K suffix indicates a pressed steel cage and high-temperature grease for extended service intervals. Ideal for applications with harsh operating conditions, this bearing delivers reliability in industries such as mining, cement production, and material handling.

Key Advantages of the 23140-2CS5K/VT143 Bearing
Designed to optimize performance in extreme environments, the 23140-2CS5K/VT143 combines robust construction with innovative features. The double-row roller configuration enhances load distribution, reducing wear and extending operational life. The inclusion of a reinforced cage (2CS5K) ensures stability at high speeds, while the VT143 seal offers long-term lubrication retention and prevents premature failure. With a dynamic load rating of 1,850 kN and static load capacity of 2,650 kN, this bearing excels in shock-load scenarios. Its corrosion-resistant outer surface and compatibility with high-viscosity greases make it a top choice for heavy machinery, including crushers, conveyors, and industrial gearboxes.

Applications and Industry Use Cases
The 23140-2CS5K/VT143 spherical roller bearing is widely utilized in sectors demanding precision under stress. In the renewable energy sector, it supports wind turbine gearboxes by handling variable loads and vibrations. For mining equipment, its ability to withstand abrasive particles and extreme temperatures ensures uninterrupted operation in crushers and screening machinery. Additionally, this bearing is critical in steel mills and paper manufacturing, where continuous high-speed operation and alignment flexibility are essential. With ISO 9001-certified manufacturing standards, it meets global quality benchmarks, offering engineers a cost-effective solution to minimize downtime and maintenance costs in mission-critical systems.

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