No built-in ball bearing support. Has no RPM limits & Supports high torque needs: 609 to 14,060 Nm. Bore (ID) sizes: 38.09 to 220 mm (1.499 to 8.66 in)

Machined parts and components all have tolerance standards when manufactured. This standard produces a consistent, uniform product.

Finding the right shaft OD to match the ID of the bearing and the correct housing ID to match the OD of the bearing (at room temperature), produces the resultant fit.

ImperialBearing conversion Chart

Example: An S 6005 C TA A7 UL angular contact bearing is installed at room temperature, ~21°C[70°F]. The running temperature of the application is ~31°C [88°F] at the housing.

Bearingcross reference by size

The best protection for your bearing. Easy to install with a simple “drop-in” next to your bearing. No added space needed. CF seals offer 100% sealing efficiency against splashing liquids.

In many circumstances the inner race press fit needs to be higher than the above tables. Be careful, because too much press fit can decrease the contact angle on an angular contact bearing.

The users's inputs are stored in the database and they become public when three or more users, from different companies, have the same request.

A good press fit target, for a given speed (RPM), in our angular contact S Series is below. Look at these numbers as the median of the resultant press fit or to offset the ISO 1101 numbers in the higher press direction.

Within this scenario, it’s a reasonable assumption to use an ID running temperature of ~41°C [106°F], i.e. 10°C above the housing temperature. The bearing will expand by ~6 microns on the OD and a 7075 AL housing will expand ~11 microns.

Race rotation relative to the shaft and/or housing can cause premature bearing failure. Therefore, higher RPM applications require a heavier shaft to inner race press fit (assuming the application is shaft rotation).

Designed with grooves in the outer ring to offer more protection (than our L-type seal) against contamination and direct spray liquids. Liquid gets pushed out through outer grooves when in rotation.

Bearing conversioncalculator

For high-speed applications, centrifugal force could cause the inner ring to expand and lift off the shaft. This may result in drastic machine malfunctions and a decrease in the life of the bearing. Increasing the press fit would help counteract this scenario.

Precision bearings have a tolerance on the inner diameter (ID) and the outer diameter (OD), and machined shaft and housings also have tolerance standards on their parts. These tolerances adjust with the temperature.

Bearinginterchange manual

This heavy-duty clutch (aka a hold-back clutch) is good for high torque operations and ensures motion freezes in place. Bore (ID) sizes: 15 to 40 mm. (0.59 to 1.73 in)

NATIONALbearingcross referencechartpdf

We know that not every application requires super, high-precision bearings. We stock other industrial parts from quality brands.

Typical shaft and housing tolerance ranges are around 10µm but establishing the correct tolerances for the shaft and housing is important for achieving optimal performance in your application.

Bearingcross reference by part number

When thinking about your bearing tolerance strategy, you want to avoid two common issues, raceway slippage and inner race lift off.

On applications where the shaft is rotating, using a press fit will prevent inner ring rotation, relative to the shaft, that could result in micro-fretting and premature bearing failure.

Our GMN Gap Seals are plastic and a great choice for washdown applications, such as food conveyors and food manufacturing facilities

The cross references are a collective work of Bearingstocks users who are daily contributing with the existing cross-references among bearings.

Nationalbearingcross referencechart

In rotating shaft applications, we recommend achieving a press fit between the shaft and the ID of the bearing and a slip fit between the housing and the OD of the bearing.

The resultant fit (press or gap) the bearing has in operation is what really matters. Because it’s the result of installation, RPM, application temperature and other external application effects such as loads or lubrication.

No built-in ball bearing support. Good for large orders & low to high torque needs: 1 to 2673 Nm. Bore (ID) sizes: 2 to 240 mm (0.078 to 9.448 in)

SKFbearingcross referencechart

Disclaimer: the cross references are a collective work of the Bearingstocks.com users and BS is not responsible for the cross references preparation errors .

Includes built-in ball bearing support. Supports HEAVY loads & has a high torque capacity: 53 to 588 Nm. Bore (ID) sizes: 10 to 60 mm (0.393 to 2.362 in)

Includes built-in ball bearing support. Supports MEDIUM loads & low to medium torque capacity: 53 to 267 Nm. Bore (ID) sizes: 17 to 40 mm (0.669 to 1.57 in)

If you have a document with bearings cross references and you would like to share it, please mail it to info@bearingstocks.com .

During operation, temperatures rise causing the bearings, shaft and housing to expand. Being prepared for these changes, when machining a shaft and housing unit, will ensure that you are choosing the correct bearing and fit for your application.