NUP218-ECP bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 6.1 single-row cylindrical roller bearings) · extracted 2026-09-26

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 6.1 single-row cylindrical roller bearings); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.

Cross references & equivalents

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the NUP218-ECP model number is decoded

Ordering number SKF NUP 218 ECP resolves to a 90×160×30 mm single-row caged cylindrical roller bearing (dimension series 2 (light-section ISO 15 envelope)); two integral flanges on the outer ring plus one integral flange and one loose flange ring on the inner ring. The NUP configuration means two integral flanges on the outer ring plus one integral flange and one loose flange ring on the inner ring; functionally the bearing is a locating bearing that positions the shaft axially in both directions while keeping the cylindrical-roller radial capacity. Reading the order-string suffix ECP: the E-design execution with a glass-fibre reinforced polyamide (PA66) cage, limited to 120 °C continuous. With C 208 kN and C0 220 kN, size the bearing on the 90×160 mm ISO 15 envelope and check the 27 kN Pu against the equivalent-load floor; the catalogue lists 4,500 r/min thermal reference speed and 5,000 r/min mechanical limiting speed. Mounting: the loose inner-ring flange must be fitted on the correct side and retained by the shaft abutment; never omit it during reassembly or the bearing loses its two-direction locating function. A 90 mm seat normally takes a k5 interference with an H6 housing bore when the inner ring rotates.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Do not use a NUP bearing where a floating non-locating bearing is required — the loose inner flange makes it a locating bearing
• The dimension series 2 (light-section ISO 15 envelope) envelope is shared with the N/NU/NJ/NUP executions of 218, but flange configuration and axial-locating behaviour differ — quote the full SKF NUP 218 ECP and do not substitute rib styles without checking the shaft locating scheme.
• Press-fit force goes through ring faces only; driving a ring home through the rollers brinells the 160 mm raceway.
• Catalogue reference and limiting speeds are different criteria: observe the mechanical ceiling even when thermal calculations allow more.
• The 208/220 kN ratings are SKF catalogue 17000 (2018) values for the ECP execution; re-verify against the current catalogue for critical drives and keep the catalogue version with the specification.