SKF NU18/900ECMA Single-row cylindrical roller bearing (NU / N / NJ / NUP)

SKF · Bearings & Power Transmission · Single-Row Cylindrical Roller Bearings · Sweden · skf.com

Part Number
NU18/900ECMA · HS 8482.20

SKF NU18/900ECMA single-row cylindrical roller bearing (nu / n / nj / nup). Single-row cylindrical roller bearing. Design executions NU / N / NJ / NUP set the axial-guidance capability by rib configuration on inner and outer ring. Standard cage ECP (glass-fibre-reinforced polyamide 6.6) for bores up to 100 mm; ECM (machined brass) above. Precision to ISO 492 Class Normal / P6 / P5. Very heavy radial-load capacity at moderate speed. Suitable for reduction-gear input shafts, marine deck-machinery drives, paper-mill dryer sections.

Technical Specifications

Type	Single-row cylindrical roller bearing (NU / N / NJ / NUP)
Designation	SKF NU18/900ECMA
Bore d	900 mm
HS code	8482.20
Bore diameter	900 mm
Outside diameter	1090 mm
Width	85 mm
Basic dynamic load rating	1980 kN
Basic static load rating	4900 kN
Reference speed	450 r/min
Limiting speed	600 r/min
Bearing part	Complete bearing
Axial displacement capability	In both directions
Number of rows	1
Locating feature, bearing outer ring	Without
Bore type	Cylindrical
Cage	Machined brass
Number of flanges, outer ring	2
Number of flanges, inner ring	0
Loose flange	None
Radial internal clearance	CN
Tolerance class	Normal
Coating	Without
Sealing	Without
Lubricant	None
Relubrication feature	Without
Candidate for remanufacturing	Yes
Indicative carbon footprint for new product	625 kg CO2e
Indicative carbon footprint for remanufactured product	208 kg CO2e
Product net weight	169 kg
eClass code	23-05-09-01
UNSPSC code	31171505

Properties

Material	As declared by SKF designation suffix
Temperature range	Per SKF product data
Primary standard	SKF designation convention
MOQ	1

Compatibility

Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.

Cross-References

FAG 18900
NSK 18900
NTN 18900
Timken 18900
Koyo 18900

Attached Documents

SKF NU18/900ECMA Single-row cylindrical roller bearing (NU / N / NJ / NUP) — Specification sheet