UCT217 Bearing Dimensions
UCT217 take up bearing unit: 85 mm bore, T217 housing + UC217 insert. Frame dimensions H 198 / L 260 mm, designation and size-equivalent codes.
UCT217 specifications
| Shaft diameter d | 85 mm |
|---|---|
| Dimension H | 198 mm |
| Dimension L | 260 mm |
| Dimension L1 | 162 mm |
| Dimension N2 | 73 mm |
| Insert width B | 85.7 mm |
| 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. Letters follow the dimension drawing in FULI's catalog; ask us for the drawing.
How to read the UCT217 designation
| Segment | Meaning |
|---|---|
| UC | Insert bearing with set-screw locking and spherical outside diameter |
| T | Take-up housing (slides in a frame to tension a belt or chain) |
| 2 | 200 series (light duty) |
| 17 | Bore code 17 → 85 mm bore. ISO bore code (00–03 = 10/12/15/17 mm; 04 and above = code × 5 mm). |
UCT217 interchange
UCT217 is a housed unit: a UC217 insert bearing in a T217 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 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.
UCT217 compared with nearby sizes and housings
UCT217 is a take-up unit that holds the UC217 insert on a 85 mm shaft: dimension H 198 mm, dimension L 260 mm, dimension L1 162 mm and dimension N2 73 mm.
UCT218 is the next larger size in the same series on this site: shaft d 90 mm (5 mm more), inner ring width B 96 mm (10.3 mm more), dimension H 215 mm (17 mm more) and dimension L 275 mm (15 mm more).
UCT216 is the next smaller size in the same series on this site: shaft d 80 mm (5 mm less), inner ring width B 82.6 mm (3.1 mm less), dimension H 184 mm (14 mm less) and dimension L 235 mm (25 mm less).
| Model | Type | Main dimensions | Weight (kg) |
|---|---|---|---|
| UCT217 | take-up unit (this page) | d 85 · H 198 · L 260 mm | — |
| UCT216 | take-up unit | d 80 · H 184 · L 235 mm | — |
| UCT218 | take-up unit | d 90 · H 215 · L 275 mm | — |
Dimensions in mm from the model pages; weight from FULI's catalog, — = not listed on this site.
UCT217 load ratings
FULI's catalog has no load rating line for UCT217 itself, so none is given here. Ask us and we send the figures with the quotation.
UCT217 dimensions in inches
The nearest common inch shaft size to the 85 mm bore of UCT217 is 3-3/8 in (85.73 mm), 0.73 mm larger than the bore, so UCT217 will not go 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 | 85 mm | 3.3465 in |
| Dimension H | 198 mm | 7.7953 in |
| Dimension L | 260 mm | 10.2362 in |
| Dimension L1 | 162 mm | 6.3780 in |
| Dimension N2 | 73 mm | 2.8740 in |
| Insert width B | 85.7 mm | 3.3740 in |
Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.
Mounting UCT217 (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 UC217 insert in UCT217 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.
The housing of UCT217 slides in the guides of the frame. Set the belt or chain tension with the adjusting screw first, then lock the insert to the shaft.
Grease for UCT217
The insert in UCT217 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 UCT217
FULI supplies UCT217 as a complete unit, or the UC217 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 UCT217.
Tools and guides for UCT217
Typical applications
- Belt conveyor take-up (tail) pulleys
- Screw conveyors and bucket elevators
- Chain and belt tensioning on agricultural machinery
FAQ
What shaft size does UCT217 fit?
A 85 mm shaft (3.3465 in).
What is the difference between UCT217 and UCT218?
UCT218 is the next size up, for a 90 mm shaft, with inner ring width B 96 mm (10.3 mm more), dimension H 215 mm (17 mm more) and dimension L 275 mm (15 mm more). Choose UCT218 when the shaft is larger or the load is higher; the housings are not interchangeable.
Which insert fits UCT217?
The UC217 insert. It is sold on its own for replacement.
Does UCT217 come as a complete unit or insert only?
UCT217 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 UCT217?
Load ratings for UCT217 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.