UCF200 Series 4-Bolt Flange Bearing Units — Standard Duty, Setscrew Locking
The UCF200 series provides the same UC insert bearing and setscrew locking that operators know from the UCP200 pillow block, but housed in a square four-bolt flange plate that mounts perpendicular to the shaft axis. This configuration eliminates the need for a separate machine wall bracket in many installations: the flange bolts directly to a vertical plate, panel, or frame face, positioning the bearing on the same side as the driven machinery rather than below it. The four-bolt pattern distributes the reaction load equally to all four corners of the flange, giving the housing more resistance to tilting under belt pull or eccentric radial loads than an equivalent two-bolt design.
Flange Mounting vs Pillow Block — When to Choose UCF200
A pillow block (UCP200) mounts on a horizontal surface and positions the shaft above the base. A flange unit (UCF200) mounts on any flat face — vertical wall, inclined panel, or horizontal plate — and positions the shaft perpendicular to that face. This makes the UCF200 the standard choice when the driven component (sprocket, pulley, cam, impeller) must be cantilevered from a vertical machine frame, when the shaft must pass through a panel, or when the overall machine depth must be minimised by bringing the bearing as close to the frame face as possible.
The UCF200 housing is dimensionally matched to the UCP200: A, J, and bolt-circle dimensions are the same for equivalent bore sizes, so the insert bearing and setscrew procedure are identical and maintenance crews need no retraining when switching between pillow block and flange configurations on the same machine.
Key Features
▭
Square Four-Bolt Flange Plate
Four M10–M20 bolts at equal corner spacing resist tilting under eccentric radial load better than two-bolt alternatives. Hollow base standard; solid base (suffix SB) available on request.
🔧
Dual Setscrew Locking at 120°
Same UC series wide inner ring insert and 120° setscrew geometry as UCP200 pillow block. Shaft tolerances, torque values, and maintenance procedure are interchangeable.
↔
Self-Aligning Wide Inner Ring Insert
Spherical OD compensates up to 2° angular misalignment between shaft and flange face. Wide inner ring provides positive setscrew seating and axial float capacity.
📏
Metric and Inch Bore
12–90 mm metric bore with multiple inch variants per housing size. UCWF201–203 variants add an A3 slot for applications requiring a through-hole pattern.
💧
End Cap Options
Pressed steel end caps available: SM (closed one side), S (open). Add prefix to order, e.g. UCF205+SM. Standard housing without cap groove; machined cap groove available with suffix M.
✅
Multi-Standard Compliance
GB, ISO, ANSI, JIS dimensional compliance. Drop-in replacement for UCF200-pattern flange units from any manufacturer.
Full Dimensional Specifications
| Unit No. | d mm | d inch | L mm | J mm | A2 mm | A1 mm | A mm | N mm | B mm | S mm | Z mm | A3 mm | Bolt | kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UCWF201~203 | 12~17 | — | 76 | 54 | 15 | 11 | 25.5 | 12 | 27.4 | 11.5 | 30.9 | — | M10 | 0.72~0.61 |
| UCF201 / 201-8 | 12 | 1/2 | 86 | 64 | 15 | 12 | 25.5 | 12 | 31 | 12.7 | 33.3 | — | M10 | 0.61 |
| UCF202 / 202-9/10 | 15 | 9/16~5/8 | 86 | 64 | 15 | 12 | 25.5 | 12 | 31 | 12.7 | 33.3 | — | M10 | 0.61 |
| UCF203 / 203-11 | 17 | 11/16 | 86 | 64 | 15 | 12 | 25.5 | 12 | 31 | 12.7 | 33.3 | — | M10 | 0.61 |
| UCF204 / 204-12 | 20 | 3/4 | 86 | 64 | 15 | 12 | 25.5 | 12 | 31 | 12.7 | 33.3 | 38.2 | M10 | 0.61 |
| UCF205 / 205-14/15/16 | 25 | 7/8~1 | 95 | 70 | 16 | 14 | 27 | 12 | 34.1 | 14.3 | 35.8 | 40 | M10 | 0.80 |
| UCF206 / 206-17~20 | 30 | 1-1/16~1-1/4 | 108 | 83 | 18 | 14 | 31 | 12 | 38.1 | 15.9 | 40.2 | 44 | M10 | 1.00 |
| UCF207 / 207-20~23 | 35 | 1-1/4~1-7/16 | 117 | 92 | 19 | 16 | 34 | 14 | 42.9 | 17.5 | 44.4 | 48.5 | M12 | 1.40 |
| UCF208 / 208-24/25 | 40 | 1-1/2~1-9/16 | 130 | 102 | 21 | 16 | 36 | 16 | 49.2 | 19 | 51.2 | 55.1 | M14 | 1.80 |
| UCF209 / 209-26~28 | 45 | 1-5/8~1-3/4 | 137 | 105 | 22 | 18 | 38 | 16 | 49.2 | 19 | 52.2 | 57 | M14 | 2.20 |
| UCF210 / 210-30~32 | 50 | 1-7/8~2 | 143 | 111 | 22 | 18 | 40 | 16 | 51.6 | 19 | 54.6 | 60 | M14 | 2.40 |
| UCF211 / 211-32~35 | 55 | 2~2-3/16 | 162 | 130 | 25 | 20 | 43 | 19 | 55.6 | 22.2 | 58.4 | 63 | M16 | 3.50 |
| UCF212 / 212-36~39 | 60 | 2-1/4~2-7/16 | 175 | 143 | 29 | 20 | 48 | 19 | 65.1 | 25.4 | 68.7 | 73.5 | M16 | 4.20 |
| UCF213 / 213-40 | 65 | 2-1/2 | 187 | 149 | 30 | 22 | 50 | 19 | 65.1 | 25.4 | 69.7 | 74.5 | M16 | 5.30 |
| UCF214 / 214-44 | 70 | 2-3/4 | 193 | 152 | 31 | 22 | 54 | 19 | 74.6 | 30.2 | 75.4 | 80 | M16 | 5.90 |
| UCF215 / 215-47/48 | 75 | 2-15/16~3 | 200 | 159 | 34 | 22 | 56 | 19 | 77.8 | 33.3 | 78.5 | 82.5 | M16 | 6.30 |
| UCF216 | 80 | — | 208 | 165 | 34 | 22 | 58 | 23 | 82.6 | 33.3 | 83.3 | 89 | M20 | 7.30 |
| UCF217 / 217-52 | 85 | 3-1/4 | 220 | 175 | 36 | 24 | 63 | 23 | 85.7 | 34.1 | 87.6 | 92.1 | M20 | 8.90 |
| UCF218 / 218-56 | 90 | 3-1/2 | 235 | 187 | 40 | 25 | 68 | 23 | 96 | 39.7 | 96.3 | 102 | M20 | 11.60 |
→ Scroll horizontally to view all columns. Catalogue dimensions for reference only — engineering drawings required before order.
UCWF201–203 = variant with A3 slot dimension. A3 = flange outer slot length. Solid base option: suffix SB. Cap groove option: suffix M.
Applications
▶
Vertical Frame Conveyor Drives
Drive sprocket and tail sprocket shafts on vertical-frame chain conveyors where the shaft must pass through the frame panel. UCF205–UCF210 covers the 25–50 mm range typical of light to medium conveyor drives.
🌀
Fan & Blower Shaft Supports
Centrifugal fan shaft supports on wall-mounted or panel-mounted fan units where the bearing must be flush with the mounting panel face. UCF206–UCF210 covers most industrial fan shaft diameters.
⚙
Pump Drive End Supports
Pump shaft drive-end bearing on inline pump assemblies where the bearing is bolted to the pump backplate or motor adapter plate rather than mounted on a separate support structure.
🌿
Agricultural Equipment Drive Frames
PTO-driven implement shafts, seed metering drive shafts, and harvester threshing frame auxiliary shafts where the bearing mounts to a vertical implement frame panel.
🔄
Packaging Machine Frame Builds
Drive shaft supports on vertical frame packaging machinery where all bearings mount to the same panel face, keeping the machine depth minimal and allowing belt or chain changes from a single access side.
⛏
Quarry & Mineral Screening Supports
Vibrating screen eccentric shaft supports on vertical side-plate mountings where the four-bolt flange resists the cyclic eccentric load better than a two-bolt design.
📦 MOQ & Order Information
- Standard parts: quantity-based MOQ applies per model number.
- High-value / large items: minimum order by USD order value.
- New-client samples: 1–5 pcs available at sample price for first-time buyers.
- Multi-model combines: aggregate orders of USD 1,500 or more across models accepted.
- Special materials / processes: subject to process MOQ — confirm at inquiry stage.
- Retail (1–2 pcs): not accepted. Minimum sample order is 1–5 pcs at sample pricing.
Engineering drawings must be submitted and approved before order confirmation. Catalogue dimensions are for reference only.
UCF200 vs UCP200 — Selecting the Right Mounting
Use UCF200 when the shaft must be supported from a vertical face, when the driven component is cantilevered from a panel, or when machine depth must be minimised. Use UCP200 when the shaft is supported from below on a horizontal base and the equipment layout favours an upright pillow block. The insert bearing, setscrew procedure, and bore options are identical between the two series — only the housing mounting geometry differs. For eccentric collar locking in a four-bolt flange, see the NAF200 series. For heavier loads, the UCFX00 medium duty and UCF300 heavy duty series provide progressively higher rated capacity.
Frequently Asked Questions
What is the difference between UCF200 and UCP200?
UCF200 mounts on a vertical face perpendicular to the shaft. UCP200 is a pillow block on a horizontal base. Insert bearing and setscrew procedure are identical.
Does UCF200 accept the same insert bearing as UCP200?
Yes — same UC series wide inner ring insert, interchangeable between both housing types.
Is solid base available?
Yes — suffix SB. Factory option.
What is the MOQ?
Standard parts: quantity-based MOQ. Samples 1–5 pcs. Multi-model from USD 1,500. Retail 1–2 pcs not accepted.
Request a Quote for UCF200 Series
Provide shaft diameter, bore type (metric or inch), quantity, and any end cap or solid base requirements. Contact us.
