Audible noise is evidence to investigate, but fault location depends on whether the sound tracks speed, torque or the machine structure.
Helical Gearbox Noise Diagnosis by Speed and Load
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UCFX 4-Bolt Flange Bearing Units
UCFX is a medium duty 4-bolt flange bearing units series for rigid face mounting around a shaft passing through a machine frame. The page keeps the complete catalogue drawing and model-by-model dimensional reference together for RFQ selection.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
BEARING SERIES · B21
UCFX 4-Bolt Flange Bearing Units
UCFX is a medium duty series configured around 4-bolt flange bearing units. Its catalogue definition uses setscrew locking, with individual bore and dimensional variants retained in one model table.
Medium dutySetscrew lockingWider inner ring / series-specific bore
Series Overview
The catalogue treats this as a distinct series, so the page below follows the same logic: choose the series by housing and locking arrangement, then match the exact unit number and dimensions in the supplied table.
If the machine layout is not fixed yet, compare this family with other mounted-bearing formats before choosing the model row. Housing geometry usually narrows the options faster than bore size alone. Browse related bearing families.
Series-Level Selection
UCFX is treated as one catalogue series, with individual unit numbers retained inside the dimensional table.
Mounting Form
The primary configuration is 4-bolt flange bearing units, intended for rigid face mounting around a shaft passing through a machine frame.
Locking Logic
The catalogue identifies setscrew locking for this series; confirm the exact row before ordering.
Technical Specifications
Start with these family-level identifiers before reading across the dimensional table. They are the details most likely to distinguish a neighboring series with a similar overall appearance.
| Series | UCFX |
|---|---|
| Catalogue Reference | Part B, page B21 |
| Product Family | 4-Bolt Flange Bearing Units |
| Duty Classification | Medium duty |
| Locking / Mounting Method | Setscrew locking |
| Inner Ring / Bore Form | Wider inner ring / series-specific bore |
| Housing / Configuration | 4-Bolt Flange Bearing Units |
| Material Note | Material varies by unit; confirm selected model |
Engineering Drawing
Read the drawing from the mounting interface inward. Check bolt or pilot geometry and shaft centerline first, then compare the remaining lettered dimensions with the same unit row in the catalogue table.
Applications
Conveyor side frames
For conveyor side frames, this series provides the catalogue mounting form shown above. Confirm load, speed, shaft dimensions and service environment for the chosen model.
Processing and packaging machinery
UCFX is relevant when processing and packaging machinery requires this housing format; verify shaft geometry, mounting interface, operating conditions and environment before final selection.
Material-handling equipment
For material-handling equipment, this series provides the catalogue mounting form shown above. Confirm load, speed, shaft dimensions and service environment for the chosen model.
Catalogue Dimensional Data
The original model table is shown at high resolution so metric and inch unit numbers remain attached to the correct drawing-letter dimensions. Select the row visually and confirm it again in the RFQ.
Selection & Integration
A replacement should be checked against measurable interfaces, not appearance alone. Record the shaft size, mounting pattern, centerline or pilot dimensions and the method used to secure the bearing to the shaft. In this family, the intended role is rigid face mounting around a shaft passing through a machine frame.
| Step | Information To Confirm |
|---|---|
| 1 | shaft diameter |
| 2 | four-bolt mounting pattern |
| 3 | shaft-to-face geometry |
| 4 | locking method and surrounding clearance |
The supplied catalogue is used here as the technical selection reference. Final quotation review should confirm the exact model, shaft size, mounting interface and any environment-specific requirement.
RFQ Support
Confirm The Exact UCFX Configuration
If the existing code is uncertain, send the shaft size and mounting drawing instead. The series can be checked against the catalogue geometry before the quotation is finalized. Ever Power Netherlands Branch can review the quotation basis against the same reference.
Blogs Updated
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