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The UCF314 is a square flanged ball bearing unit consisting of a UC314 insert bearing and an F314 housing. Its four-bolt flange design allows easy installation on walls, frames, and other mounting surfaces, making it suitable for heavy-duty applications.
| Brand | BKZ / OEM |
|---|---|
| Model No. | UCF314 |
| Insert Bearing Number | UC314 |
| Housing Number | F314 |
| Rolling Element Type | Ball |
| Mounting Type | 4-Bolt Square Flange Mount |
| Number of Mounting Holes | 4 |
| Locking Method | Set Screw Locking |
| Number of Set Screws | 2 |
| Bore Diameter / Shaft Diameter | 70 mm |
| Overall Length | 226 mm |
| Overall Width | 226 mm |
| Housing Height / Base Thickness | 61 mm |
| Mounting Hole Center Distance | 178 mm |
| Mounting Hole Diameter | 25 mm |
| Housing Side Thickness / Flange Thickness | 25 mm |
| Bearing Center Position from Mounting Surface | 36 mm |
| Total Height from Mounting Surface | 81 mm |
| Insert Bearing Inner Ring Width | 78 mm |
| Raceway Center Position | 33 mm |
| Mounting Bolt Size | M22 |
| Grease Fitting | M10 × 1 |
| Basic Dynamic Radial Load Rating, Cr | 104.1 kN |
| Basic Static Radial Load Rating, C0r | 68 kN |
| Bearing Ring Material | SAE 52100 / GCr15 Bearing Steel / Chrome Steel |
| Ball Material | SAE 52100 / GCr15 Bearing Steel |
| Cage Material | Pressed Steel |
| Housing Material | Cast Iron |
| Housing Construction | One-Piece |
| Seal Type | Sealed on Both Sides |
| Lubrication | Grease, Relubricatable |
| Self-Aligning | Yes |
| Duty Type | Heavy Duty |
| Operating Temperature Range | -20°C to 100°C |
| Recommended Set Screw Tightening Torque | 33 N·m |
| Weight | Approx. 9.46 kg |
UCF314, as a heavy-duty unit in the UCF300 series, offers several advantages when correctly selected for the application.
The square four-bolt flange housing can be securely mounted to a wall, frame, or machine surface. The extended inner ring slides onto the shaft and is locked in position using two set screws.
The two set screws fasten the bearing’s inner ring to the shaft, helping prevent relative movement during operation. The four-bolt square flange provides stable support and distributes the mounting load across the machine structure.
The spherical outside surface of the UC314 insert bearing fits into the matching spherical bore of the F314 housing. This design allows the unit to compensate for moderate initial alignment errors during installation. It is not intended to accommodate continuous shaft deflection or dynamic misalignment.
The large UC314 insert bearing and rigid cast-iron housing provide high radial load capacity. Its ball-bearing design generally permits higher rotational speeds and lower friction than comparable plain bearings. However, allowable speed and operating temperature depend on the load, lubrication, seals, shaft fit, and operating conditions. Standard units should not automatically be described as suitable for high-speed or high-temperature service.
The replaceable insert bearing, durable cast-iron housing, reliable seals, and relubrication feature help extend service life and reduce maintenance costs.
UCF314 bearing units are commonly used in the following applications:
Material Handling: Belt conveyors, powered roller conveyors, screw conveyors, bucket elevators, and chain conveyors.
Mining and Quarrying: Vibrating screens, crushers, ore conveyors, rotary feeders, and aggregate-washing equipment.
Agriculture and Grain Handling: Grain conveyors, feed mixers, bucket elevators, threshers, and grain-cleaning machines.
Food Processing: Industrial mixers, washing equipment, sorting conveyors, rotary dryers, and packaging conveyors.
Woodworking and Sawmills: Log conveyors, debarking machines, sawmill rollers, wood chippers, and sanding machines.
Manufacturing and Packaging: Assembly conveyors, pallet conveyors, packaging machines, industrial washing equipment, and material-feeding systems.
If you are replacing an existing bearing unit, first confirm that the complete model is UCF314. You should also compare the bore diameter and mounting dimensions, as products with similar model numbers may have different specifications.
For a new machine, first check whether the 70 mm bore diameter and mounting dimensions fit your design. Then consider the load, speed, operating temperature, dust, moisture, vibration, and other working conditions.
Yes. UCF314 can be mounted vertically or horizontally. Its four-bolt square flange provides stable mounting on walls, machine frames, and other flat surfaces.
In most cases, UCF314 units from different manufacturers are interchangeable because they generally use the same standard bore and mounting dimensions.
Yes. The F314 housing and UC314 insert bearing can be purchased separately. Please provide the required model and quantity when requesting a quotation.
The main differences are their bore diameters:
Yes. We can provide an inspection report for UCF314 according to your requirements. Please specify the required inspection items when requesting a quotation.
| Bearing No. |
Dimensions (mm) | Weight (kg) |
Bearing Type |
Housing Type |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| B | L | J | A | A1 | A2 | N | De | ||||
| UCF305 | 38 | 110 | 80 | 29 | 13 | 16 | 16 | M14 | 1.1 | UCF305 | F305 |
| UCF306 | 43 | 125 | 95 | 32 | 15 | 18 | 16 | M14 | 1.6 | UCF306 | F306 |
| UCF307 | 48 | 135 | 100 | 36 | 16 | 20 | 19 | M16 | 2 | UCF307 | F307 |
| UCF308 | 52 | 150 | 112 | 40 | 17 | 23 | 19 | M16 | 2.7 | UCF308 | F308 |
| UCF309 | 57 | 160 | 125 | 44 | 18 | 25 | 19 | M16 | 3.4 | UCF309 | F309 |
| UCF310 | 61 | 175 | 132 | 48 | 19 | 28 | 19 | M20 | 4.5 | UCF310 | F310 |
| UCF311 | 66 | 185 | 140 | 52 | 20 | 30 | 23 | M20 | 5.5 | UCF311 | F311 |
| UCF312 | 71 | 195 | 150 | 86 | 22 | 33 | 23 | M20 | 6.5 | UCF312 | F312 |
| UCF313 | 75 | 208 | 166 | 58 | 22 | 33 | 23 | M20 | 7.9 | UCF313 | F313 |
| UCF314 | 78 | 226 | 178 | 61 | 25 | 36 | 25 | M22 | 9.5 | UCF314 | F314 |
| UCF315 | 82 | 236 | 184 | 66 | 25 | 39 | 25 | M22 | 12 | UCF315 | F315 |
| UCF316 | 86 | 250 | 196 | 68 | 27 | 38 | 31 | M27 | 14 | UCF316 | F316 |
| UCF317 | 96 | 260 | 204 | 74 | 27 | 44 | 31 | M27 | 16 | UCF317 | F317 |
| UCF318 | 96 | 280 | 216 | 76 | 30 | 44 | 35 | M30 | 19 | UCF318 | F318 |
| UCF319 | 103 | 290 | 228 | 94 | 30 | 59 | 35 | M30 | 22 | UCF319 | F319 |
| UCF320 | 108 | 310 | 242 | 94 | 32 | 59 | 38 | M33 | 26 | UCF320 | F320 |
Send us the bearing number and required quantity. Our team will reply quickly with pricing and suitable bearing solutions.
