ASFW BEARINGS WITH OVAL 2-HOLE FLANGE, CAST IRON – 200 Series

ASFW Series 200 Bearings with 2-Hole Oval Flange, Cast Iron

TheASFW Series 200 Bearings are complete bearing assemblies consisting of an oval-flanged cast iron housing and a self-aligning insert bearing. Their compact design with two mounting points allows them to support a rotating shaft while minimizing the space required around the mounting location.

The Camagris product line includes the following itemsASFW204, ASFW205, ASFW206, ASFW207, and ASFW208, corresponding to trees ranging from 20 to 40 mm.

These bearings are sold under the brand nameCredits.

What is an ASFW bearing ?

An ASFW bearing consists of two main components:

– oneFW housing with an oval cast-iron flange, with two mounting holes ;

– oneAS Series Insert Bearing, installed in the apartment.

The spherical outer surface of the bearing allows for slight movement within its housing. This design gives the bearing its self-aligning capability and compensates for minor static misalignments between the shaft and the housing.

The bearing is secured directly to the shaft using locking screws on its inner ring.

This design should not be confused with that of an UCFL, even though both families use an oval housing with two mounting points.

Components of an ASFW Bearing

An ASFW set typically includes:

– a cast-iron housing with an oval flange ;

– two mounting holes ;

– a self-aligning insert bearing ;

– a spherical outer ring ;

– an inner ring that allows it to be tightened onto the shaft ;

– set screws for securing the shaft ;

– bearing protection seals ;

– a lubrication system appropriate for the bearing design.

The cast-iron housing provides good rigidity during assembly and greater mechanical strength than a housing made entirely of stamped sheet metal.

ASFW204–ASFW208 Series

ASFW204 – 20 mm shaft

Shaft diameter: 20 mm
Total length A: 90.5 mm
Center-to-center distance of E fasteners: 71.4 mm
Width of housing B: 66.5 mm
Distance between mounting holes S: approximately 9 mm
Matching insert: AS204
Matching housing: FW204

ASFW205 – 25-mm shaft

Shaft diameter: 25 mm
Total length A: 97 mm
Center-to-center distance of E fasteners: 76.2 mm
Width of housing B: 71 mm
Distance between mounting holes S: approximately 9 mm
Matching insert: AS205
Matching housing: FW205

ASFW206 – 30 mm shaft

Shaft diameter: 30 mm
Total length A: 112.5 mm
Center-to-center distance of E fasteners: 90.5 mm
Width of housing B: 84 mm
Distance between mounting holes S: approximately 11.5 mm
Matching insert: AS206
Matching housing: FW206

ASFW207 – 35-mm shaft

Shaft diameter: 35 mm
Total length A: 126 mm
Center-to-center distance of E fasteners: 100 mm
Width of housing B: 94 mm
Distance between mounting holes S: approximately 11.5 mm
Matching insert: AS207
Matching listing: FW207

ASFW208 – 40 mm shaft

Shaft diameter: 40 mm
Total length A: 148 mm
Center-to-center distance of E fasteners: 119 mm
Width of housing B: 104 mm
Distance between mounting holes S: approximately 13.5 mm
Matching insert: AS208
Matching housing: FW208

The main dimensions listed here correspond to the dimensions currently specified for Camagris products and to the manufacturers’ tables for the ASFW series. Depending on the brand or exact model, some secondary dimensions may vary slightly. It is therefore advisable to compare the existing bearing before replacing it.

How to Choose the Right ASFW Bearing ?

To correctly identify an ASFW bearing, start by noting the part number printed on the housing or on the bearing.

If the marking is no longer legible, there are several ways to find the correct part number.

The shaft diameter

This is the first criterion to check.

ASFW204: 20 mm
ASFW205: 25 mm
ASFW206: 30 mm
ASFW207: 35 mm
ASFW208: 40 mm

The center-to-center distance between the two fasteners

Measure the distance between the centers of the two mounting holes.

This dimension is particularly important because two bearings designed for a shaft of the same diameter may have completely different housings.

The exterior dimensions of the dwelling

Also check:

– the total length of the landing ;

– the width of the body ;

– the diameter of the mounting holes ;

– the thickness of the housing ;

– the total width of the bearing.

These measures make it possible, in particular, to distinguish aASFW of aUCFL or aASPFL.

What is the difference between ASFW and UCFL ?

Both the ASFW bearing and the UCFL bearing are oval in shape and have two mounting points, but their construction and dimensions differ.

TheASFW uses an AS-series insert bearing and a compact FW cast-iron housing.

TheUCFL uses a UC-series insert bearing with a wide inner ring and an FL housing, which is generally larger.

For example, an ASFW205 and an UCFL205 are both designed for a 25-mm shaft, but their center-to-center distance, mounting, and overall dimensions are not the same.

Therefore, they should not be considered interchangeable simply because they have the same number, 205.

What is the difference between ASFW and ASPFL ?

This distinction is particularly important because Camagris offers both series.

TheASFW has a rigid oval housing made ofcast iron.

TheASPFL uses a housing made ofstamped steel sheet.

Both families can accommodate an AS-series insert bearing and have relatively similar dimensions, but their housings are not identical.

ASFW is generally the preferred solution when looking for:

– greater rigidity of the housing ;

– a cast-iron base ;

– greater mechanical strength of the body ;

– a fixed installation on a frame or a machine.

The ASPFL is lighter and may be the better choice when weight, the thickness of the mounting surface, or the type of mounting require the use of a sheet-metal housing.

Before replacing an ASPFL with an ASFW—or vice versa—it is essential to compare all dimensions.

What is the difference between ASFW and UCF ?

TheUCF has a square housing with four mounting points.

TheASFW features an oval clamp with only two fasteners.

Both the UCF205 and the ASFW205 can be configured for a 25-mm shaft, but their mounting systems on the machine are completely different.

The UCF is typically used when four mounting points are required, while the ASFW offers a more compact, two-bolt solution.

The AS insert bearing in ASFW bearings

ASFW bearings use insert bearings from the AS series.

Their operating principle is similar to that of a rigid ball bearing, but their external geometry is designed for installation in a self-aligning housing.

The shaft is secured using set screws.

According to bearing manufacturers, the AS series may be designated by different part numbers or grouped with other series based on the same design principle.

In particular, there are family letters to:

– SKF YAT Series ;

– INA / Schaeffler GAY series ;

– US series SNR ;

– NSK AS Series ;

– NTN AS or US series, depending on the catalog.

These designations serve as reference points for research. Equivalence should be confirmed only after comparing the dimensions, the width of the inner ring, the seals, and the housing used.

Business Correspondence from the ASFW Series

The complete list of components for the set may also vary by manufacturer and distributor.

For the same type of structure, the following terms are commonly used:

– ASFW ;

– SBFW ;

– UBFW ;

– USFD ;

– ASFW D1 according to certain NTN product lines.

For example, aASFW205 may correspond to part numbers such as SBFW205, UBFW205, or USFD205D1, depending on the manufacturer.

However, these part numbers should not be considered automatically interchangeable without verifying the dimensions.

Applications of ASFW Bearings

Thanks to their compact oval flange with two mounting points, ASFW bearings can be used on a wide range of mechanical equipment.

In particular, they may be suitable for:

– conveyors ;

– transfer screws ;

– augers ;

– fans ;

– intermediate trees ;

– small transmissions ;

– material-handling equipment ;

– packaging machines ;

– agricultural equipment ;

– livestock equipment ;

– grain storage and transfer facilities ;

– machines built or modified in the workshop.

Bearings and bushings used in agricultural machinery often operate in environments exposed to dust, moisture, vibrations, and contaminants. Choosing the right type of seal and maintaining proper lubrication are therefore particularly important for the bearing’s service life. Specialized agricultural catalogs place a strong emphasis on protecting bearings under these harsh conditions.

Benefits of an ASFW Cast Iron Housing

Good rigidity

The cast-iron housing provides a rigid support for the bearing and minimizes deformation of the housing under load.

Compact size

The two-hole flange takes up less space than a square bearing with four mounting holes.

Easy assembly

The complete bearing assembly can be mounted directly on the shaft and then bolted to its mounting bracket.

Auto-alignment

The spherical geometry between the bearing and the housing compensates for slight static misalignments.

Replaceable bearing

As long as the housing remains in good condition, the AS insert can generally be replaced separately, provided that its dimensions and geometry are maintained.

Installation of an ASFW Bearing

Before installation, carefully clean the shaft and the mounting surface.

The shaft must not have any significant burrs or oxidation that could interfere with the installation of the bearing.

Next, position the bearing on the shaft and tighten the two mounting bolts, but do not tighten them all the way yet.

When multiple bearings support the same shaft, check the alignment of the assembly and make sure the shaft rotates freely.

Next, gradually tighten the housing fasteners, followed by the set screws on the inner ring.

Avoid striking the bearing or seals directly during installation.

Lubrication and Maintenance

The lubrication frequency depends on the specific type of bearing, its rotational speed, the load, and the operating environment.

Some ASFW assemblies include a fitting that allows for relubrication.

In a dusty or humid agricultural environment, check the following regularly:

– the condition of the seals ;

– the absence of abnormal play ;

– the bearing temperature ;

– the noise of the rolling ;

– tightening the screws on the shaft ;

– tightening the mounting bolts.

Too much grease can cause overheating. Conversely, insufficient lubrication accelerates wear on the raceways and rolling elements.

Frequently Asked Questions About ASFW Bearings

What does ASFW205 mean ?

ASFW refers to a flanged assembly with a cast iron housing and an AS series insert bearing. The code 205 here corresponds to a shaft diameter of 25 mm.

Which ASFW bearing should I choose for a 20-mm shaft ?

For a 20-mm shaft, the part number in this series isASFW204.

Which ASFW bearing should I choose for a 25-mm shaft ?

The corresponding reference isASFW205.

Which ASFW bushing should I choose for a 30-mm shaft ?

For a 30-mm shaft, choose aASFW206, after checking the mounting center-to-center distance of 90.5 mm and the other dimensions of the housing.

Which ASFW bearing should I choose for a 35-mm shaft ?

The standard reference isASFW207.

Which ASFW bearing should I choose for a 40 mm shaft ?

The corresponding reference isASFW208.

Is an ASFW205 the same as a UCFL205 ?

No. Both stages accommodate a 25-mm shaft, but the insert bearing, housing, and mounting dimensions are different.

What is the difference between ASFW205 and ASPFL205 ?

The ASFW205 has a rigid cast iron housing. The ASPFL205 has a stamped steel housing. Their dimensions are similar, but they should not be substituted for one another without verification.

Can you replace just the bearing in an ASFW ?

Yes, provided the housing is in good condition and the replacement insert has the correct dimensions and geometry. For an ASFW205, the corresponding insert is typically an AS205.

How is the bearing secured to the shaft ?

The AS series uses pin screws to secure the inner ring of the bearing.

Order your ASFW bearing from Camagris

Camagris offers the following product lineASFW204 through ASFW208, covering shaft diameters from 20 to 40 mm. The current product line includes five part numbers, and several sizes are available immediately or from the supplier’s inventory.

To identify the right model, start by comparing:

– the shaft diameter ;

– the center-to-center distance between the two holes ;

– the total length of the dwelling ;

– the width of the body ;

– the diameter of the mounting holes.

If you're unsure, measure these dimensions on your old landing before placing your order.