Axial load bearing carrying capacity

Axial load capacity for Extreme Bearings with and adapter sleeve

Understanding Axial Load Capacity: The Critical Role of the Adapter Sleeve

When adapter sleeve mounting is applied in Extreme Bearing units, the maximum axial load capacity is influenced by the connection between the shaft and the bearing inner ring created by the adapter sleeve.

The adapter sleeve secures the shaft by generating a clamping force during mounting. This clamping force must remain within a defined range to maintain the correct radial internal clearance and ensure proper bearing operation.

In many applications, a double row spherical roller bearing is combined with adapter sleeve mounting. Based on practical experience, the approximate axial load capacity supported by the adapter sleeve can be estimated using the following rule of thumb:

Fap = 0,003 · B · d
Fap = maximum permissible axial load, kN
B = bearing width, mm
d = bearing bore diameter, mm

Stainless steel bearing pillow block to bear heavy axial load bearing carryin

Mounting solutions for higher axial loads

Extreme Bearing engineers have developed dedicated mounting solutions that increase axial load transmission while maintaining secure shaft fixation, correct alignment, and reliable bearing performance.

In the following section, we introduce advanced bearing unit mounting solutions designed for applications where higher axial load capacity is required beyond conventional adapter sleeve mounting.

DR – Rear Load Direction

When axial force is applied from the rear side of the Extreme Bearing unit equipped with adapter sleeve mounting, a DR-ring is used. A shaft shoulder is required to press against the DR-ring, transmitting the axial load directly to the bearing inner ring rather than through the adapter sleeve.

This prevents the tapered adapter sleeve from being forced further into the bearing, which could cause inner ring expansion, changes in radial internal clearance, and premature bearing failure.

The DR-ring transfers the axial load evenly into the bearing, ensuring proper force distribution and improved load handling in this direction.

This configuration is used where axial forces act from behind the Extreme Bearing housing toward the bearing insert.

Diameter d1 is up to 60mm, 5mm thicker than diameter d
Diameter d1 is from 65mm, 10mm thicker than diameter d

Part Number	d	d1	X
DR025	25	30	17
DR030	30	35	18
DR035	35	40	20
DR040	40	45	24
DR045	45	50	24
DR050	50	55	25
DR055	55	60	26
DR060	60	65	27
DR065	65	75	32
DR070	70	80	32
DR075	75	85	33
DR080	80	90	31
DR085	85	95	33
DR090	90	100	35
DR100	100	110	36

Ring for axial Bearing loads by using spherical tapered roller bearings

Stainless steel flange bearing with axial load carrying capacity

CV – Cover Load Direction

This configuration ensures that the axial force is guided correctly in the intended direction into the bearing without introducing unwanted forces, preventing stress on the system and maintaining correct bearing alignment and internal clearance.

The CV-bushing transfers the axial load evenly into the bearing, ensuring proper force distribution and reliable load handling in this direction.

This configuration is used where axial forces act from the cover side of the Extreme Bearing housing toward the bearing insert.

Part Number	d	d1	X
CV025	25	30	18
CV030	30	35	21
CV035	35	40	22
CV040	40	45	23
CV045	45	50	24
CV050	50	55	25
CV055	55	60	27
CV060	60	65	29
CV065	65	75	30
CV070	70	80	34
CV075	75	85	36
CV080	80	90	38
CV085	85	95	41
CV090	90	100	43
CV100	100	110	48

Extreme Loads an Extreme Solution!

Sometimes, even an Extreme Bearing application asks for more. When standard solutions reach their limits, it is time to explore the EXV Thrust Bearing Units.

Designed specifically for extreme axial loads, EXV flange thrust bearing units are engineered to handle and support very high axial forces where conventional bearing units are no longer sufficient.

The EXV range expands the Extreme Bearing family by taking axial load capacity to the next level — because when the load gets serious, we believe your bearing solution should be even more serious.

EXV: built for the loads that make standard solutions step aside.

---KLIK HERE--- to discover the bearings wich are special designed for verry heavy axial loads !

Point to Consider

The axial load depends on the radial load and how the load occur, impact or continuous load, temperature, speed and etcetera. It is quite complicated to made this calculation. Please feel free to contact us with your questions.

Tipcal customer requests reagarding this page were

Extreme Bearing could help out!


We are working on an application in the Food Industry. 
We are looking for a bearing on the thrust side of an auger that will live at the bottom of
 a potato metering hopper.  The anticipated loads in pound force will be in this range:

Typical  Maximum
Axial Load     3,188        8,000
Radial Load  1,606         1,750

Do you have any products that you can quote for this application?