NUP207-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 NUP207-ECP model number is decoded

NUP207-ECP is the 35 mm bore entry in the NUP200 range: a 35×72×17 mm single-row caged cylindrical roller bearing with a glass-fibre reinforced polyamide (PA66) window-type cage, rated C 56 kN / C0 48 kN. Structurally, the NUP design has two integral flanges on the outer ring plus one integral flange and one loose flange ring on the inner ring. In arrangement terms it is a locating bearing that positions the shaft axially in both directions while keeping the cylindrical-roller radial capacity. The ECP suffix marks the E-design execution with a glass-fibre reinforced polyamide (PA66) cage, limited to 120 °C continuous. The glass-fibre reinforced polyamide (PA66) window-type cage is reflected in the published speeds and temperature limits. The radial section height is 18.5 mm and the catalogue mass 310 g; at 56 kN dynamic rating this is roughly 1.60 kN of C per millimetre of bore before application factors. Assembly note: 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. Heat steel rings inductively to max 120 °C — the PA66 cage sets the ceiling.

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 207, but flange configuration and axial-locating behaviour differ — quote the full SKF NUP 207 ECP and do not substitute rib styles without checking the shaft locating scheme.
• Catalogue reference and limiting speeds are different criteria: observe the mechanical ceiling even when thermal calculations allow more.
• Press-fit force goes through ring faces only; driving a ring home through the rollers brinells the 72 mm raceway.
• The 56/48 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.