Keep the evidence with the model shortlist
The models on this page illustrate bearing roles; they are not confirmed replacements for an unspecified machine. Keep the original complete marking, machine position, load and speed duty, temperature, lubricant and mounting arrangement together. Check the candidate's recorded values below and leave unreported parameters unknown.
Check drawings and model records · Investigate a failure before replacing it · Plan installation and force paths
What matters in this application
Position and forces
Separate idler load from drive/tail-pulley reactions and take-up tension. Include impact and start/stop loads.
Mounting interface
Record shaft size, locking method, base-to-shaft height, bolt spacing and housing footprint.
Environment
Determine dust, water, washdown chemicals and relubrication access. Standard seals do not imply hygienic or submersible service.
Which bearing structures make sense?
Pillow-block ball bearing units
A mounted-support starting point when the unit and housing ratings meet the duty.
Check first: Check housing/base strength and bolt arrangement in addition to the insert's capacity.
Replacement bearing inserts
Useful when a compatible housing can be retained after inspection.
Check first: Confirm outer seating geometry, locking method and full insert designation.
Spherical-roller pulley supports
Investigate for heavier pulley loads and alignment requirements.
Check first: Select the housing, seals, shaft fit and axial-location arrangement as a system.
Recommended starting points
These candidates illustrate specific roles and envelopes, not a ranked list or interchangeable set. Review each condition before using a model in a design.
UCP205
25 mm shaft · complete unit25 mm shaft · complete pillow-block unit
A real mounted-unit reference for checking a compact conveyor support layout.
- Dynamic C
- 14 kN
- Static C₀
- 7.85 kN
- Limiting speed
- — rpm
Before selectionCheck bolt pitch, shaft height, locking and housing strength. Insert width is not the complete unit footprint.
Open complete model dataUC205
25×52×34.1 mm25 mm shaft · insert only
An insert reference for evaluating repair of a compatible mounted housing.
- Dynamic C
- 14.9 kN
- Static C₀
- 7.8 kN
- Limiting speed
- — rpm
Before selectionNot a complete unit and not automatically interchangeable with every UCP205 insert; verify seating and locking details.
Open complete model data6306
30×72×19 mm30 mm shaft · engineered radial support
A conventional bearing option for a designed and sealed pulley or drive support.
- Dynamic C
- 30.5 kN
- Static C₀
- 16.2 kN
- Limiting speed
- 13700 rpm
Before selectionRequires suitable housing, fits, sealing and load calculations; it does not include a mounting block.
Open complete model data22212 E
60×110×28 mm60 mm shaft · larger pulley support
A spherical-roller candidate to investigate for a heavier pulley support with angular accommodation.
- Dynamic C
- 159 kN
- Static C₀
- 166 kN
- Limiting speed
- 7500 rpm
Before selectionCalculate pulley reactions and choose compatible housing/seals; check shock load, clearance and minimum load.
Open complete model dataCompare the recorded specifications
Different sizes and bearing structures are shown for different duties. C and C₀ are catalogue load ratings, not permissible equipment loads. Limiting speed is not an approved operating speed.
Swipe to see all models →
| Parameter | KOYOUCP205 | FAGUC205 | FAG6306 | SKF22212 E |
|---|---|---|---|---|
| Bore d (mm) | 25 | 25 | 30 | 60 |
| Outside D (mm) | — | 52 | 72 | 110 |
| Recorded width (mm) | — | 34.1 | 19 | 28 |
| Dynamic C (kN) | 14 | 14.9 | 30.5 | 159 |
| Static C₀ (kN) | 7.85 | 7.8 | 16.2 | 166 |
| Catalogue limiting speed (rpm) | — | — | 13700 | 7500 |
— = not reported, or not directly comparable for a mounted unit. Width conventions differ for inserts, complete units and bearing assemblies; inspect the dimensional drawing. Values are read from the current BearingScope records, not estimated from model numbers.
Work through the selection
- Identify the conveyor position, belt tensions, payload, impact conditions and support spacing.
- Calculate each support reaction rather than dividing belt payload equally between bearings.
- Choose a complete unit or engineered bearing/housing system and verify every mounting interface.
- Check life, shock/static safety, sealing and lubrication; inspect belt tracking and shaft retention after assembly.
Symptoms worth checking
Insert turns on the shaft
Inspect shaft tolerance, locking method, installation torque and fretting.
Frequent contamination damage
Review sealing, purge practice, washdown exposure and housing protection.
Cracked housing or loose feet
Inspect support flatness, bolt loading, shock forces and the housing rating, not just the bearing rating.
Symptoms are investigation prompts, not a diagnosis. Isolate equipment safely and follow its maintenance procedures before inspection.
Have the original designation?
Look up the complete model and suffix before comparing potential alternatives.
Application questions, answered
Is UC205 the same as UCP205?
No. UC205 identifies an insert in this dataset, while UCP205 is a mounted pillow-block unit. Housing and mounting dimensions are additional requirements.
Why does the unit not show a simple d×D×B size?
A mounted housing has a footprint, shaft height and bolt pattern rather than the outer-ring envelope of a standalone bearing. The page shows the shaft diameter and points to the full unit record.
Can I use a standard unit for food-industry washdown?
Do not assume so. Check corrosion resistance, sealing, lubricant suitability and hygiene requirements for the particular line and cleaning process.
Reference basis & recommendation limits
- SKF — Bearing selection process
- NSK — Ball Bearing Units
Application principles are informed by the listed technical references. Model shortlists are BearingScope editorial selections from its database, not manufacturer endorsements or equipment-fit approvals. Confirm the latest exact specification and the complete equipment design before use.