UCFC ROUND 4-HOLE CAST IRON BEARINGS – 200 Series

UCFC Series 200 Round 4-Hole Cast Iron Bearings

TheUCFC Series 200 Bearings are complete assemblies consisting of a round cast-iron housing and a self-aligning UC insert bearing.

What sets them apart is the circular shape of the housing and the presence of acentering diameter allowing the bearing to be precisely positioned in a bore or shoulder provided on the machine.

The bracket has four mounting holes spaced around the housing.

This design is particularly useful when the bearing must be perfectly centered relative to a housing, a flange, a transmission, or another mechanical component.

The products offered in this category are sold under the brand nameCredits.

Camagris currently offers:

UCFC207 – shaft, Ø35 mm

UCFC208 – shaft, Ø40 mm

What is a UCFC bearing ?

An UCFC bearing consists of two main components:

a round cast-iron housing from the FC series ;

a UC-series self-aligning insert bearing.

Thus:

UCFC207 = FC207 housing + UC207 bearing

UCFC208 = FC208 housing + UC208 bearing

The bearing has a spherical outer surface that fits into a corresponding seat in the housing.

This geometry allows for slight self-alignment of the bearing to compensate for minor static misalignments between the shaft and the housing.

The bearing is held in place on the shaft bytwo lead screws mounted in its wide inner ring.

What is the purpose of aligning a UCFC bearing ?

This is the key difference between the UCFC and several other bearing families.

The UCFC housing features a cylindrical centering section that fits into a bore in the mount.

This alignment allows for:

– to precisely position the bearing axis ;

– to make it easier to install the bearing ;

– to prevent the position from depending solely on the four bolts ;

– to more precisely replicate the geometry specified by the machine manufacturer ;

– to facilitate the replacement of an existing bearing with the same centering dimensions.

On a UCFC207, the standard centering diameter is90 mm.

On a UCFC208, it is100 mm.

It is therefore essential to check this dimension before replacing a UCFC bearing.

Components of a UCFC Bearing

An UCFC set typically includes:

– a round cast-iron housing ;

– four mounting holes ;

– a machined centering diameter ;

– a UC insert bearing ;

– a spherical outer ring ;

– a wide inner ring ;

– two locking set screws ;

– protective gaskets ;

– a grease fitting for relubrication.

The bearing is sold as a complete unit and is ready to install.

UCFC207 – Round bearing for a Ø35 mm shaft

TheUCFC207 is designed for a 35-mm shaft.

Its main dimensions are:

Shaft diameter d:35 mm

Outer diameter of flange L:135 mm

Center-to-center distance of J fasteners:110 mm

H3 housing centering diameter:90 mm

Diameter corresponding to the inner positioning circle: approximately77.8 mm

Height / axial width of body A:34 mm

Diameter of mounting holes N:14 mm

Overall width from the mounting surface: approximately36.4 mm

Width of the bearing's inner ring B:42.9 mm

Insert Bearing:UC207

Housing:FC207

Mounting on the shaft:two set screws

Relubricatable:Yes, through a grease fitting

The UCFC207 is particularly well-suited for installations requiring a round flange centered on a 35-mm shaft.

UCFC208 – Round Bearing for Ø40 mm Shaft

TheUCFC208 is designed for a 40-mm shaft.

Its main dimensions are:

Shaft diameter d:40 mm

Outer diameter of flange L:145 mm

Center-to-center distance of J fasteners:120 mm

H3 centering diameter:100 mm

Width/height of housing A:36 mm

Diameter of mounting holes N:14 mm

Overall width from the mounting surface: approximately41.2 mm

Width of the bearing's inner ring B:49.2 mm

Distance from the face to the center of the bearing S:19 mm

Insert Bearing:UC208

Housing:FC208

Mounting on the shaft:two set screws

The UCFC208 is the next larger size up from the UCFC207 for 40-mm shafts.

How to Choose the Right UCFC Program ?

The inside diameter alone is not sufficient to correctly select a UCFC.

Several dimensions need to be checked.

The shaft diameter

It determines the size of the bearing insert.

UCFC207: 35-mm shaft

UCFC208: 40-mm shaft

The outer diameter of the flange

Measure the total diameter of the round housing.

UCFC207: 135 mm

UCFC208: 145 mm

The center-to-center distance of the four fasteners

This dimension must match the existing holes on the machine.

UCFC207: 110 mm

UCFC208: 120 mm

The centering diameter

This is a crucial step for this family.

UCFC207: 90 mm

UCFC208: 100 mm

The new bearing must fit properly into the mounting bracket's centering bore.

The diameter of the mounting holes

The UCFC207 and UCFC208 typically use holes that are approximately 14 mm in diameter.

The width of the bearing

The width of the inner ring must also be checked when other components are positioned near the bearing.

The UC bearing mounted in a UCFC

The UC series is one of the most widely used families of insert bearings.

The bearing has:

– a cylindrical bore ;

– a wide inner ring ;

– two set screws ;

– a spherical outer ring ;

– protective gaskets ;

– lubrication systems, depending on the model.

The UC207 has a bore diameter of 35 mm.

The UC208 has a 40-mm bore.

As long as the FC housing remains in good condition, it is usually possible to replace only the bearing insert.

However, it is necessary to check the full dimensions, the spherical profile, and the position of the grease fittings.

How is the bearing attached to the shaft ?

The UC insert bearing is secured directly to the shaft with two set screws.

Once the bearing is properly positioned and aligned, the two screws are gradually tightened against the shaft.

This system allows for relatively simple installation without a clamping sleeve.

However, the shaft must have the correct diameter, without excessive wear, significant corrosion, or ovality.

What is the difference between UCFC and UCF ?

This is an important distinction.

TheUCFC owns a homeround with four mounting holes and a centering diameter.

TheUCF owns a homesquare with four fasteners.

Both can use exactly the same type of UC insert bearing.

For example:

UCFC207 = UC207 + FC207 round housing

UCF207 = UC207 + square F207 housing.

Both fit a 35-mm shaft, but their mounting holes are different.

Therefore, they are not directly interchangeable.

Why choose a UCFC over a UCF ?

The UCFC is particularly useful when the machine's platform already has acircular centering bore.

Housing thus finds its place precisely at this focal point.

A standard UCF relies more on the position of the four bolts for its alignment.

The UCFC may therefore be preferable for:

– circular flanges ;

– machined housings ;

– fans ;

– certain transmissions ;

– equipment that requires precise shaft alignment.

What is the difference between UCFC and UCFL ?

TheUCFL has an oval strap with two holes.

TheUCFC has a round flange with four holes and a center mark.

Both the UCFL207 and the UCFC207 use a UC207-sized insert and accommodate a 35-mm shaft.

Their homes, however, are completely different.

What is the difference between UCFC and UCP ?

TheUCP has a bearing housing and is mounted on a surface parallel to the shaft.

TheUCFC has a round flange designed to be secured to a wall or housing perpendicular to the shaft axis.

However, both can accommodate the same UC bearing insert.

What is the difference between the UCFC and the UCF 300 Series ?

The UCFC200 is primarily characterized by its round housing with centering.

The UCF300 uses a larger square flange and a Series 300 insert bearing.

The two families are therefore designed for very different configurations and should not be compared based solely on the shaft diameter.

Comparisons Between Major Brands

The UCFC designation is used by several manufacturers.

For theUCFC207, these include, among others:

Credits:UCFC207

NTN:UCFC207D1

SNR:UCFC207

NSK:UCFC207D1

FYH:UCFC207

SKF:FYC 35 TF

For theUCFC208 :

Credits:UCFC208

NTN:UCFC208D1

SNR:UCFC208

NSK:UCFC208D1

FYH:UCFC208

SKF:FYC 40 TF

SKF designations use a different naming convention but refer to the same broad functional family: a round housing with four mounting points and a screw-in bearing insert.

However, these references should be considered asfamily business correspondence. Always check the outer diameter, center-to-center distance, alignment, width, and seal integrity before replacing a part.

Compatibility of Inserts Across Brands

The UC insert bearing can itself be compared to several common series.

In the family of fasteners secured with two set screws, the following are notably found:

NTN: UC

SNR: UC

NSK: UC

FYH: UC

SKF: YAR

INA / FAG: GYE.

However, one should not automatically assume that a UC and a YAR are strictly interchangeable across all secondary dimensions.

The bearing and housing must be inspected together.

Applications of UCFC Bearings

UCFC bearings can be used in a wide range of agricultural and industrial applications.

They can be found, in particular, on:

– conveyors ;

– elevators ;

– fans ;

– turbines ;

– transfer screw ;

– transmissions ;

– intermediate shafts ;

– agricultural machinery ;

– material-handling equipment ;

– storage facilities ;

– mechanical housings ;

– circular flanges ;

– equipment that requires precise bearing alignment.

The UCFC is particularly useful when a round flange is a better fit for the machine's geometry than a square or oval housing.

Use of UCFCs in Agriculture

Agricultural machinery often subjects bearings to harsh conditions:

– dust ;

– earth ;

– plant residues ;

– humidity ;

– vibrations ;

– load variations ;

– intensive seasonal operation.

A self-aligning bearing allows for greater tolerance of minor misalignments in the mounting bracket.

However, the choice of seals and lubrication must be adapted to the machine's actual operating environment.

Sealing of the UC Bearing

Standard UC inserts typically have contact seals reinforced with a metal shield.

Their role is to trap grease while limiting the entry of dust and contaminants.

For particularly harsh agricultural environments, some manufacturers also offer reinforced versions with multiple lips.

However, a reinforced version should not automatically be considered identical to the standard version: in particular, the permissible speed and friction may differ.

Can the UCFC be relubricated ?

Common versions of the UCFC are equipped with a grease fitting that allows the grease to be replaced.

UCFC207, as proposed by Camagris, is indicated in particular forCan be relubricated via a grease fitting.

The grease enters the housing and then flows into the bearing through the grooves and lubrication holes provided for that purpose.

Before lubricating a bearing, always check that the holes in the bearing and the housing are properly aligned.

Lubrication Frequency

The frequency of relubrication depends on:

– speed ;

– the load ;

– temperature ;

– moisture ;

– the level of contamination ;

– the number of operating hours.

On agricultural machinery that is highly exposed to dust or moisture, inspections should be conducted more frequently.

You should also avoid using too much grease, as this can cause the bearing to overheat.

How do you install a UCFC bearing ?

Clean the surfaces

Carefully clean the shaft, the centering housing, and the support surface.

Position the bearing

Insert the UCFC's centering section into the designated bore on the machine.

The bearing must move into position without experiencing abnormal stress.

Install the four bolts

Move the four fasteners closer together without tightening them immediately.

Check the alignment

When multiple bearings support the same shaft, make sure the shaft rotates freely before tightening the bearings securely.

Tighten the housing

Gradually tighten the four bolts.

Secure the bearing to the shaft

Next, tighten the two set screws on the inner ring.

After the first few hours of operation, check the temperature, noise level, and tightness of the fasteners.

Frequently Asked Questions About UCFC Bearings

What does UCFC207 mean ?

UC refers to the type of insert bearing secured with set screws.

FC refers to the round housing with four mounting points and a centering mechanism.

207 corresponds to a tree of35 mm.

What is the inner diameter of a UCFC207 ?

The UCFC207 is designed for a shaft of35 mm.

What are the main dimensions of a UCFC207 ?

The main dimensions are:

outer diameter:135 mm

mounting center-to-center distance:110 mm

centering diameter:90 mm

mounting holes:14 mm

bearing width:42.9 mm.

What is the inner diameter of a UCFC208 ?

The UCFC208 is designed for a shaft of40 mm.

What are the dimensions of a UCFC208 ?

Its main dimensions are:

outer diameter:145 mm

center-to-center distance:120 mm

centering diameter:100 mm

mounting holes:14 mm

bearing width:49.2 mm.

What is the difference between UCFC207 and UCF207 ?

Both are compatible with a 35-mm shaft and typically use a UC207 insert.

However, the UCFC207 has a round flange with a centering feature, while the UCF207 has a square flange.

What is the difference between UCFC208 and UCF208 ?

The principle is the same.

Both use a UC208-sized bearing for a 40-mm shaft, but the UCFC housing is round and centered, while the UCF has a square flange.

Is shipping included ?

Yes. A complete UCFC bearing assembly includes the housing and the insert bearing.

Can you replace just the bearing ?

Yes, as long as the FC housing remains in good condition.

For a UCFC207, the insert is a UC207.

For a UCFC208, the insert is a UC208.

Can an SKF FYC 35 TF replace an UCFC207 ?

It belongs to the corresponding SKF family and is a common equivalent.

However, the center-to-center distance, the centering diameter, the housing dimensions, and the design must be verified before replacement.

Is a UCFC bearing suitable for agricultural machinery ?

Yes. Its cast-iron construction, self-aligning bearing, and simple mounting system make it suitable for a wide range of agricultural and material-handling equipment.

Order your UCFC bearings from Camagris

Camagris currently offers:

UCFC207 – Four-hole round flange for Ø35 mm shaft

UCFC208 – Four-hole round bearing for a Ø40 mm shaft.

To correctly identify your bearing, first check the following:

– the shaft diameter ;

– the outer diameter of the housing ;

– the center-to-center distance between the four fasteners ;

– the diameter of the holes ;

– and above all, thecentering diameter.

The centered design is one of the UCFC’s key features and makes it easy to distinguish from a square UCF or an oval UCFL.