N2252 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (NTN Ball and Roller Bearings CAT.No.2203E) · extracted 2026-10-01

Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN Ball and Roller Bearings CAT.No.2203E); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.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 N2252 model number is decoded

For pure radial duty on a 260 mm shaft NTN supplies N2252: two integral ribs on the inner ring and a ribless separable outer ring; the open execution is rated 1,200 r/min on grease and 1,400 r/min on oil. Digit by digit, N2252 reads as N (inner ring ribbed, outer ring ribless), ISO 15 series, and bore 260 mm; trailing letters such as EA or E mark the cage/capacity execution and are part of the order number. The separable ring comes off without removing the roller assembly from the other ring, which eases inspection and lets the non-locating arrangement accommodate thermal shaft growth. Speed ratio check: limiting 1,200 r/min is .86 of the 1,400 r/min oil value for N2252; grease-churn heating closes that gap as fill quantity rises. Keep the open bearing wrapped until fitting: the line-contact raceways of the 260 mm bore indent under a single hard particle, and the steel cage provides no sealing of its own.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 260 mm bore, oil-lubricated arrangements toward 1,400 r/min need positive flow and drain design; the 102000 g N2252 ring stores enough heat that grease-only duty needs a careful relubrication calculation.
• If the shaft must be located both ways, do not use N2252 alone: pair it with a locating bearing or specify the NUP execution with the matching loose rib ring from the 2203E table.
• Grease limiting speed 1,200 r/min and oil 1,400 r/min are different limits for N2252: the first is the cage/lubricant mechanical ceiling, the second assumes real oil flow rather than an oil bath.
• The EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 1980/2930 kN pair here belongs to N2252 as printed, not to the bare size.
• The EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 1980/2930 kN pair here belongs to N2252 as printed, not to the bare size.
• The 1980/2930 kN ratings, 241 kN Pu and 102000 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N2252 (standard execution); other makes sharing the ISO 15 envelope revise internal geometry without changing the order number, so keep the 2203E reference with the specification for critical drives.