UCX / UCX-L3 Medium-Duty Bearing Inserts
Compare mounting style, shaft locking, bore range and installation envelope before selecting the alternative.
NA / NA-L3 Eccentric Locking Bearing Inserts
For NA / NA-L3 Eccentric Locking Bearing Inserts, review the complete mounted interface: shaft bore, inner-ring width, outer-ring form and housing seat, then the eccentric locking collar shaft connection. The product construction is chrome-steel insert bearing construction.
Measure from stable machine datums instead of from worn edges or old paint marks. On base-mounted units, the shaft centre and foot-hole locations usually control fit. On flanged units, the bolt pattern and plate opening become more important. Take-up and cartridge arrangements have their own locating dimensions. The drawing should therefore be read according to the mounting form, not as a generic list of numbers.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
Mounting Pattern Control
Mounting-geometry buying notes
For NA / NA-L3 Eccentric Locking Bearing Inserts, review the complete mounted interface: shaft bore, inner-ring width, outer-ring form and housing seat, then the eccentric locking collar shaft connection. The product construction is chrome-steel insert bearing construction.
This product family is commonly reviewed for conveyors, fans, roller tables and general industrial housings using replaceable inserts. Actual load, speed, cleaning and contamination conditions should be stated for the ordered position.
Representative
NA205
Mounting
Spherical OD, wider inner ring
Locking
Eccentric collar
Representative bore
25 mm
D
52 mm
B
34.9 mm
Mounting Pattern Control
A mounted bearing can have the correct bore and still be unusable if its fixing pattern does not match the machine. For procurement, bolt centres, centre height and housing envelope are often approval dimensions rather than secondary drawing details.
Measure from stable machine datums instead of from worn edges or old paint marks. On base-mounted units, the shaft centre and foot-hole locations usually control fit. On flanged units, the bolt pattern and plate opening become more important. Take-up and cartridge arrangements have their own locating dimensions. The drawing should therefore be read according to the mounting form, not as a generic list of numbers.
When a frame has elongated holes or field modifications, document them. Pulling a new housing into position with the fixing bolts can twist the support or move the shaft away from its intended line. It is better to resolve the machine interface first and allow the bearing unit to seat naturally against the mounting surface.
Store the confirmed interface dimensions with the product reference after a successful replacement. This makes the next purchase easier and helps distinguish similar models whose main difference is hidden in the mounting geometry.
Bolt-pattern drawing review
Use the drawing to compare shaft bore, inner-ring width, outer-ring form and housing seat. Read the printed values rather than scaling the illustration; for modified equipment, send current machine measurements with the enquiry.
Technical Specifications & Drawing
| Representative bore | 25 mm |
|---|---|
| D | 52 mm |
| B | 34.9 mm |
| C | 17 mm |
| S | 17.5 mm |
| B1 | 44.4 mm |
| B2 | 13.5 mm |
| d1 | 38.1 mm |
| G | 5 mm |
| Setscrew | M6x1 / 1/4-28 UNF |
| Ca | 4 mm |
| Weight | 0.25 kg |
| Load / Housing Strength Reference | |
| Basic dynamic load | 14.03 kN |
| Basic static load | 8.05 kN |
Applications
Conveyors
NA205 can be considered for conveyors where its spherical od, wider inner ring geometry matches the machine. Check the machine-side interface shown in the drawing before final model approval.
Fans & General Machinery
For fans & general machinery, the eccentric collar arrangement changes installation access and shaft retention. Confirm that detail before standardising the spare.
Replacement & MRO
In replacement & mro service, use the construction of NA205 only where the actual moisture, contamination and cleaning conditions match the selected product family.
Related Products
UE Concentric Locking Bearing Inserts
Compare mounting style, shaft locking, bore range and installation envelope before selecting the alternative.
UC300 Heavy-Duty Bearing Inserts
Compare mounting style, shaft locking, bore range and installation envelope before selecting the alternative.
Mounting-pattern RFQ
Attach the machine bolt pattern or housing dimensions together with shaft size and required quantity.
For NA / NA-L3 Eccentric Locking Bearing Inserts, review the complete mounted interface: shaft bore, inner-ring width, outer-ring form and housing seat, then the eccentric locking collar shaft connection. The product construction is chrome-steel insert bearing construction.
Measure from stable machine datums instead of from worn edges or old paint marks. On base-mounted units, the shaft centre and foot-hole locations usually control fit. On flanged units, the bolt pattern and plate opening become more important. Take-up and cartridge arrangements have their own locating dimensions. The drawing should therefore be read according to the mounting form, not as a generic list of numbers.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
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