UCFL Series 2-Bolt Flange Bearing Units
UCFL series 2-bolt flange bearing units are compact mounted units for light to medium duty machinery.

UCFL series 2-bolt flange bearing units combine a UC insert with a compact oval FL-housing for light to medium duty side mounting in space-constrained frames. Spanning 15–140 mm bores (UCFL202–UCFL328), the two-bolt oval design fits narrow profiles where square flanges will not. Each unit offers self-alignment, set-screw locking, and ISO 9001 certified production.
Product Dimension Drawing
Download or view the product dimension drawing and technical data for model selection.
UCFL Series 2-Bolt Flange Unit Specifications
| Unit No. | d (mm) | d (in.) | Housing No. | Mass (kg) |
|---|---|---|---|---|
| UCFL202 | 15 | 5/8" | FL203 | 0.45 |
| UCFL202-10 | 15.875 | 5/8" | FL203 | 0.45 |
| UCFL203 | 17 | 11/16" | FL203 | 0.43 |
| UCFL203-11 | 17.462 | 11/16" | FL203 | 0.43 |
| UCFL204-12 | 19.05 | 3/4" | FL204 | 0.48 |
| UCFL204 | 20 | 3/4" | FL204 | 0.48 |
| UCFL205-14 | 22.225 | 7/8" | FL205 | 0.6 |
| UCFL205-15 | 23.813 | 15/16" | FL205 | 0.6 |
| UCFL205 | 25 | 1" | FL205 | 0.6 |
| UCFL205-16 | 25.4 | 1" | FL205 | 0.6 |
| UCFL206-18 | 28.575 | 1-1/8" | FL206 | 0.9 |
| UCFL206 | 30 | 1-3/16" | FL206 | 0.9 |
| UCFL206-19 | 30.163 | 1-3/16" | FL206 | 0.9 |
| UCFL206-20 | 31.75 | 1-1/4" | FL206 | 0.9 |
| UCFL207-20 | 31.75 | 1-1/4" | FL207 | 1.5 |
| UCFL207-21 | 33.337 | 1-5/16" | FL207 | 1.5 |
| UCFL207-22 | 34.925 | 1-3/8" | FL207 | 1.5 |
| UCFL207-23 | 36.513 | 1-7/16" | FL207 | 1.5 |
| UCFL208-24 | 38.1 | 1-1/2" | FL208 | 1.5 |
| UCFL208-25 | 39.688 | 1-9/16" | FL208 | 1.5 |
| UCFL209-26 | 41.275 | 1-5/8" | FL209 | 1.9 |
| UCFL209-27 | 42.862 | 1-11/16" | FL209 | 1.9 |
| UCFL209-28 | 44.45 | 1-3/4" | FL209 | 1.9 |
| UCFL209 | 45 | 1-3/4" | FL209 | 1.9 |
| UCFL210-30 | 47.625 | 1-7/8" | FL210 | 2.2 |
| UCFL210-31 | 49.212 | 1-15/16" | FL210 | 2.2 |
| UCFL210-32 | 50.8 | 2" | FL210 | 2.2 |
| UCFL210 | 50 | 2" | FL210 | 2.2 |
| UCFL211-32 | 50.8 | 2" | FL211 | 3.1 |
| UCFL211-34 | 53.975 | 2-1/8" | FL211 | 3.1 |
| UCFL211-35 | 55.563 | 2-3/16" | FL211 | 3.1 |
| UCFL211 | 55 | 2-3/16" | FL211 | 3.1 |
| UCFL212-36 | 57.15 | 2-1/4" | FL212 | 4 |
| UCFL212 | 60 | 2-3/8" | FL212 | 4 |
| UCFL212-38 | 60.325 | 2-3/8" | FL212 | 4 |
| UCFL212-39 | 61.913 | 2-7/16" | FL212 | 4 |
| UCFL213-40 | 63.5 | 2-1/2" | FL213 | 5 |
| UCFL213 | 65 | 2-1/2" | FL213 | 5 |
| UCFL214-44 | 69.85 | 2-3/4" | FL214 | 5.6 |
| UCFL214 | 70 | 2-3/4" | FL214 | 5.6 |
| UCFL215-48 | 76.2 | 3" | FL215 | 6.2 |
| UCFL215 | 75 | 3" | FL215 | 6.2 |
| UCFL216 | 80 | 3-1/8" | FL216 | 7.8 |
| UCFL217-52 | 82.55 | 3-1/4" | FL217 | 9.8 |
| UCFL217 | 85 | 3-1/4" | FL217 | 9.8 |
| UCFL218-56 | 88.9 | 3-1/2" | FL218 | 12.4 |
| UCFL218 | 90 | 3-1/2" | FL218 | 12.4 |
| UCFL305-14 | 22.225 | 7/8" | FL305 | 1.1 |
| UCFL305-15 | 23.813 | 15/16" | FL305 | 1.1 |
| UCFL305 | 25 | 1" | FL305 | 1.1 |
| UCFL305-16 | 25.4 | 1" | FL305 | 1.1 |
| UCFL306-18 | 28.575 | 1-1/8" | FL306 | 1.5 |
| UCFL306 | 30 | 1-3/16" | FL306 | 1.5 |
| UCFL306-19 | 30.163 | 1-3/16" | FL306 | 1.5 |
| UCFL306-20 | 31.75 | 1-1/4" | FL306 | 1.5 |
| UCFL307-20 | 31.75 | 1-1/4" | FL307 | 1.8 |
| UCFL307-21 | 33.337 | 1-5/16" | FL307 | 1.8 |
| UCFL307-22 | 34.925 | 1-3/8" | FL307 | 1.8 |
| UCFL307-23 | 36.513 | 1-7/16" | FL307 | 1.8 |
| UCFL308-24 | 38.1 | 1-1/2" | FL308 | 2.5 |
| UCFL308-25 | 39.688 | 1-9/16" | FL308 | 2.5 |
| UCFL308 | 40 | 1-1/2" | FL308 | 2.5 |
| UCFL309-26 | 41.275 | 1-5/8" | FL309 | 3.4 |
| UCFL309-27 | 42.862 | 1-11/16" | FL309 | 3.4 |
| UCFL309-28 | 44.45 | 1-3/4" | FL309 | 3.4 |
| UCFL309 | 45 | 1-3/4" | FL309 | 3.4 |
| UCFL310-30 | 47.625 | 1-7/8" | FL310 | 4.4 |
| UCFL310-31 | 49.212 | 1-15/16" | FL310 | 4.4 |
| UCFL310-32 | 50.8 | 2" | FL310 | 4.4 |
| UCFL310 | 50 | 2" | FL310 | 4.4 |
| UCFL311-32 | 50.8 | 2" | FL311 | 5.1 |
| UCFL311-34 | 53.975 | 2-1/8" | FL311 | 5.1 |
| UCFL311-35 | 55.563 | 2-3/16" | FL311 | 5.1 |
| UCFL311 | 55 | 2-3/16" | FL311 | 5.1 |
| UCFL312-36 | 57.15 | 2-1/4" | FL312 | 6.1 |
| UCFL312 | 60 | 2-3/8" | FL312 | 6.1 |
| UCFL312-38 | 60.325 | 2-3/8" | FL312 | 6.1 |
| UCFL312-39 | 61.913 | 2-7/16" | FL312 | 6.1 |
| UCFL313-40 | 63.5 | 2-1/2" | FL313 | 7.8 |
| UCFL313 | 65 | 2-1/2" | FL313 | 7.8 |
| UCFL314-44 | 69.85 | 2-3/4" | FL314 | 9.8 |
| UCFL314 | 70 | 2-3/4" | FL314 | 9.8 |
| UCFL315 | 75 | 3" | FL315 | 11.3 |
| UCFL315-48 | 76.2 | 3" | FL315 | 11.3 |
| UCFL316 | 80 | 3-1/8" | FL316 | 14.3 |
| UCFL317-52 | 82.55 | 3-1/4" | FL317 | 16 |
| UCFL317 | 85 | 3-1/4" | FL317 | 16 |
| UCFL318-56 | 88.9 | 3-1/2" | FL318 | 19.1 |
| UCFL318 | 90 | 3-1/2" | FL318 | 19.1 |
| UCFL319 | 95 | 3-11/16" | FL319 | 24.6 |
| UCFL319-60 | 95.25 | 3-3/4" | FL319 | 24.6 |
| UCFL320 | 100 | 3-15/16" | FL320 | 30.8 |
| UCFL320-64 | 101.6 | 4" | FL320 | 30.8 |
| UCFL321 | 105 | 4-1/8" | FL321 | 27 |
| UCFL322 | 110 | 4-5/16" | FL322 | 33 |
| UCFL324 | 120 | 4-3/4" | FL324 | 48 |
| UCFL326 | 130 | 5-1/8" | FL326 | 58 |
| UCFL328 | 140 | 5-1/2" | FL328 | 81 |
Showing 98 of 98 models
Original Dimension Drawing
For full dimensional details, download the original technical drawing below.

Frequently Asked Questions
UCFL 2-bolt flange vs UCP pillow block, which to use?
UCFL mounts to a vertical or side plate with two bolts and saves space, while UCP sits on a horizontal base with a P-housing. Use UCFL when the shaft is on a frame wall or space is limited, and UCP when base mounting is available. Both share UC bore sizes, so UCFL205 and UCP205 both take a 25 mm shaft. CTZ publishes full dimensions for both ranges to help select the right mounted unit.
What is the MOQ for UCFL flange units?
CTZ takes trial and full-container orders for UCFL 2-bolt flange units. Wholesale MOQ for common sizes like UCFL205, UCFL208 and UCFL210 often starts at a few hundred pieces per model, with mixed pallets possible. OEM and private label UCFL orders set MOQ by box printing and packing setup. Send the models and quantity to the Ningbo team to confirm MOQ and unit pricing for your market.
What material are UCFL flange housings made from?
The UC insert in a UCFL unit uses Chrome Steel (GCr15 / 100Cr6) rings and balls with a hardened spherical outer ring. The FL-housing is typically cast iron, with pressed steel or stainless options for washdown use. Cages are stamped steel and units ship greased. CTZ applies incoming material and dimensional checks so UCFL 2-bolt flange units keep consistent quality for distributors and OEM customers.
How are UCFL units packed for export?
UCFL 2-bolt flange units ship in neutral packing by default, with OEM brand packing, custom boxes, labels and export cartons available. Units are packed in inner boxes, master cartons and pallets for sea freight, and anti-rust protection can be added. CTZ confirms artwork, carton count and pallet type before production so distributors get UCFL orders ready for local sale and shelf display.
What is the delivery time for UCFL flange orders?
UCFL flange orders usually ship 20 to 30 days after deposit, depending on quantity, model mix and packing. Common sizes such as UCFL205 and UCFL210 are often partly stocked for quicker dispatch, while custom OEM packing or large volumes take longer. CTZ arranges mixed container loads from Ningbo and gives a production and shipment schedule so distributors can plan stock for assembly and maintenance.
Need UCFL Series 2-Bolt Flange Bearing Units?
Send us the model number, quantity, packing requirement and destination port.