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Timken 6308-C3 medium series deep groove ball bearing, 40mm bore, open design, C3 radial internal clearance. Dynamic load rating 40.7 kN, static load rating 24 kN. Oil reference speed 12000 rpm, grease reference speed 8500 rpm. Suitable for electric motors, pumps, and general industrial applications requiring greater-than-normal clearance for thermal expansion or interference fits.
View suggested Nachi Bearing alternativeSave $19.44 on MROSupply.com preferred brand for this item - Nachi Bearing 6308C3
MODEL 6308-C3
$49.39 Each
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10.28 in Inner ring width
65 mm
14.09 in Outer ring width
65 mm
2.5591 in O.D. (in)
400 mm 15.748 Outer ring backing diameter:358 mm
2.5591 in Reference thermal speed rating (grease)
1400 RPM Static radial rating:1290000 N
290000 lbf Type
NU
Bearing Type
Standard DGBB
Bore
40 mm
Bore Size d
40 mm
C0r - Static Load Rating
24000 N
Clearance
C3
Cr - Dynamic Load Rating
40700 N
Design units
Metric Inner ring backing diameter:261.2 mm
Dynamic load rating
40.7 kN
Features
Open
Grease reference speed
8500 rpm
Grease Reference Speed
8500 rpm
Oil reference speed
12000 rpm
Oil Reference Speed
12000 rpm
Outside Diameter D
90 mm
Outside Ring Width B
23 mm
Radius Rs min
1.5 mm
Static load rating
24 kN
Timken’s deep groove ball bearings deliver reliable performance in a wide range of applications and conditions. With super-finished raceways and controlled geometries, our premium design helps ensure consistent quality.
SKU: 5066946
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I always buy from MRO is a very reliable company to work with
Read moreHow 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.
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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more