UCF207 Bearing Dimensions
UCF207 4-bolt square flange bearing unit: 35 mm bore, 92 mm bolt centres. F207 housing + UC207 insert, designation, size-equivalent codes.
UCF207 specifications
| Shaft diameter d | 35 mm |
|---|---|
| Flange length L | 117 mm |
| Bolt hole spacing J | 92 mm |
| Insert width B | 42.9 mm |
| Mounting bolt | M12 |
| Seal / shield options | Sealed insert bearing (UC type) with cast iron housing |
| Material | Insert: GCr15 chrome bearing steel (rings and rolling elements); housing: cast iron |
| Precision | P0 (standard) |
| Radial clearance | C0 (standard); C3 on request |
| Load ratings | Load ratings for this model are being checked against FULI's catalog. Ask for them with the quote. |
Dimensions cross-checked against published catalogues; please confirm with your quote.
How to read the UCF207 designation
| Segment | Meaning |
|---|---|
| UC | Insert bearing with set-screw locking and spherical outside diameter |
| F | Four-bolt square flange housing |
| 2 | 200 series (light duty) |
| 07 | Bore code 07 → 35 mm bore. ISO bore code (00–03 = 10/12/15/17 mm; 04 and above = code × 5 mm). |
UCF207 interchange by brand
UCF207 is a housed unit: a UC207 insert bearing in an F207 housing. The insert bearing dimensions follow ISO and interchange between manufacturers. Housing dimensions such as bolt hole spacing can differ between the JIS and ISO versions of the same designation, so please confirm the mounting dimensions with us before ordering.
| Brand | Designation |
|---|---|
| SKF | UCF 207 |
| Timken | UCF207 |
| Koyo | UCF207 |
Same designation; confirm housing bolt spacing.
Brand numbers for UCP, UCF and UCFL units: Pillow Block Bearing Cross Reference.
Brand names are trademarks of their respective owners. FULI is not affiliated with, authorized by or endorsed by these companies. Part numbers are shown for interchange reference only. FULI dimensions, load ratings and speeds come from the FULI catalog.
UCF207 compared with nearby sizes and housings
UCF207 is a square flange unit that holds the UC207 insert on a 35 mm shaft: flange length L 117 mm with M12 bolts.
The same 207 size is also made as UCP207 (pillow block unit, d 35 · H 47.6 · J 127 mm) and UCFL207 (oval flange unit, d 35 · L 161 · J 130 mm). All of them take the same UC207 insert, so a worn insert can be changed without changing the housing type.
UCF208 is the next larger size in the same series on this site: shaft d 40 mm (5 mm more), inner ring width B 49.2 mm (6.3 mm more) and bolt spacing J 102 mm (10 mm more), and it takes M14 bolts instead of M12.
UCF206 is the next smaller size in the same series on this site: shaft d 30 mm (5 mm less), inner ring width B 38.1 mm (4.8 mm less), length L 108 mm (9 mm less) and bolt spacing J 83 mm (9 mm less), and it takes M10 bolts instead of M12.
| Model | Type | Main dimensions | Weight (kg) |
|---|---|---|---|
| UCF207 | square flange unit (this page) | d 35 · L 117 · J 92 mm | — |
| UCF206 | square flange unit | d 30 · L 108 · J 83 mm | — |
| UCF208 | square flange unit | d 40 · J 102 mm (JIS) | 1.9 |
| UC207 | insert bearing | 35 × 72 × 42.9 mm (d × D × B) | 0.47 |
| SB207 | insert bearing | 35 × 72 × 32 mm (d × D × B) | — |
| SA207 | insert bearing | 35 × 72 × 25.4 mm (d × D × B) | — |
| UCP207 | pillow block unit | d 35 · H 47.6 · J 127 mm | 1.6 |
| UCFL207 | oval flange unit | d 35 · L 161 · J 130 mm | — |
Dimensions in mm from the model pages; weight from FULI's catalog, — = not listed on this site.
UCF207 load ratings
FULI's catalog has no load rating line for UCF207 itself, so none is given here. The ratings of the UC207 insert are on its own page. Ask us and we send the figures with the quotation.
UCF207 dimensions in inches
The nearest common inch shaft size to the 35 mm bore of UCF207 is 1-3/8 in (34.93 mm), 0.07 mm smaller than the bore, so UCF207 would be loose on it. An inch shaft needs an inch bore insert. Inch bore versions are made for some sizes; ask us with the shaft size.
| Dimension | Millimetres | Inches |
|---|---|---|
| Shaft diameter d | 35 mm | 1.3780 in |
| Flange length L | 117 mm | 4.6063 in |
| Bolt hole spacing J | 92 mm | 3.6220 in |
| Insert width B | 42.9 mm | 1.6890 in |
Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.
Mounting UCF207 (general guidance)
General guidance, not a FULI specification: insert bearings slide onto the shaft rather than being pressed on, and are held by their locking device. A shaft ground or drawn to h7 is common; a closer shaft such as js7 or j7 suits higher speed.
The UC207 insert in UCF207 is locked by set screws in the extended inner ring. Housed-unit problems usually start at the set screws: if the inner ring is not held, it turns on the shaft and wears it. Tighten each screw to the torque in the mounting instructions, and check them again after the first hours of running.
Bolt UCF207 down with M12 bolts at 92 mm spacing on a flat, rigid face. Line up the two housings on a shaft before tightening the bolts fully, then lock the inserts, so the shaft is not bent between them.
Grease for UCF207
The insert in UCF207 is sealed on both sides and greased at the factory. If the housing has a grease fitting, add grease slowly through it while the shaft turns until a little fresh grease shows at the seals; general practice is to relubricate more often in wet or dusty places.
Greases for a stated temperature range can be specified on the order; for North America a range of −40 to 120 °C is often asked for.
How FULI supplies UCF207
FULI supplies UCF207 as a complete unit, or the UC207 insert on its own for replacement. Before packing, the factory checks the mounting torque, the fit of the insert in the housing, the radial clearance and that the base-to-centre height is consistent across the batch.
Rings are marked with a brand you are authorised to use, with the FULI brand, or left neutral, as your order states. The box is printed with the model, precision class and brand.
Inquiries that leave out the prefix or suffix letters are the usual cause of a wrong quote, so write the full designation, for example UCF207.
Tools and guides for UCF207
Typical applications
- Conveyors
- Packaging machinery
- Agricultural machinery
- Textile machinery
FAQ
What shaft size does UCF207 fit?
A 35 mm shaft (1.3780 in).
What is the difference between UCF207 and UCF208?
UCF208 is the next size up, for a 40 mm shaft, with inner ring width B 49.2 mm (6.3 mm more) and bolt spacing J 102 mm (10 mm more). It takes M14 bolts. Choose UCF208 when the shaft is larger or the load is higher; the housings are not interchangeable.
Which insert fits UCF207?
The UC207 insert (35 × 72 × 42.9 mm). It is sold on its own for replacement.
UCF207 or UCP207: which should I use?
Both hold the same UC207 insert on a 35 mm shaft. UCF207 is a square flange unit (d 35 · L 117 · J 92 mm); UCP207 is a pillow block unit (d 35 · H 47.6 · J 127 mm). Choose by how the bearing is fixed to the machine: a pillow block bolts to a surface parallel to the shaft, a flange to a face across it.
Does UCF207 come as a complete unit or insert only?
UCF207 is normally supplied as a complete unit (insert bearing already fitted in the housing). The insert can also be quoted separately if you are replacing only the bearing.
Where are the load ratings for UCF207?
Load ratings for UCF207 are being checked against FULI's catalog and are not shown on this page yet. Model pages with a "Load ratings & speed" table carry values from FULI's catalog.