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The SKF 6318-Z/C3 is a 90mm bore deep groove ball bearing with a steel shield on one side and C3 greater-than-normal clearance. It features a sheet metal cage and is constructed from standard bearing steel. Suitable for electric motors, pumps, and general industrial applications where moderate speeds and radial loads are present.
MODEL 6318-Z/C3
$422.31 Each
Prices are subject to change
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Returnable:No
Basic Dynamic Load Rating
151 kN
Basic Static Load Rating
108 kN
Bearing Outer Ring Locating Feature
None
Bore Diameter
90 mm
Bore Type
Cylindrical
Cage
Sheet metal
Clearance
C3
Coating
Without
Dimension Type
Metric
Filling Slots
Without
I.D.
3.543 in
Inner Diameter (mm)
90.000
Limiting Speed
4800 r/min
Locating Feature Bearing
None
Lubricant
None
Lubricant (in Bearing)
None
Matched Arrangement
No
Material
Bearing steel
Material/Treatment
Bearing steel
Number of Rows
1
O.D. (in)
7.48
Outer Diameter (mm)
190.000
Pack Height
211 mm
Pack Length
207 mm
Pack Width
56 mm
Radial Internal Clearance
C3
Reference Speed
7500 r/min
Relubrication Feature
Without
Seal Type
N/A
Sealing
Shield on one side
Sealing Type
Non-contact
SKF Performance Class
SKF Explorer
Tolerance Class
Normal
Width
43 mm
Width (mm)
43.000
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
What is the difference between deep groove and angular contact ball bearings?
Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.
#278597
Brand
NTN Bearing
Model
6318ZC3
#320148
Brand
SKF Bearing
Model
6318 ZJEM
#5034391
Brand
NSK Bearings
Model
6318ZC3
#2176277
Brand
FAG Bearing
Model
6318ZR.C3
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Disclaimer: The return policy information shown below is merely an excerpt from SKF's General Conditions of Sale.
RETURN OF GOODS FOR CREDIT
Goods will not be accepted for return without prior written approval from SKF. The return freight must be prepaid by the Buyer. Unless return of Goods is due to Supplier error, Goods returned will be subject to a credit service fee of $25.00 or 15% of the credit value, whichever is greater. An additional service fee may apply is further inspection is required at the discretion of SKF