NUP29-530-ECMA 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

No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.

How the NUP29-530-ECMA model number is decoded

Ordering number SKF NUP 29/530 ECMA resolves to a 530×710×106 mm single-row caged cylindrical roller bearing (dimension series 29 (compact OD, normal width)); 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. The ECMA suffix denotes the E-design execution with a one-piece machined brass cage for higher-temperature and higher-speed continuous duty. The one-piece machined brass cage is reflected in the published speeds and temperature limits. With C 2380 kN and C0 5000 kN, size the bearing on the 530×710 mm ISO 15 envelope and check the 390 kN Pu against the equivalent-load floor; the catalogue lists 850 r/min thermal reference speed and 1,100 r/min mechanical limiting speed. 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.

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 29 (compact OD, normal width) envelope is shared with the N/NU/NJ/NUP executions of 29/530, but flange configuration and axial-locating behaviour differ — quote the full SKF NUP 29/530 ECMA 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 710 mm raceway.
• Press-fit force goes through ring faces only; driving a ring home through the rollers brinells the 710 mm raceway.
• The 2380/5000 kN ratings are SKF catalogue 17000 (2018) values for the ECMA execution; re-verify against the current catalogue for critical drives and keep the catalogue version with the specification.