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Genuine FAG and INA bearingsOrders placed before 2 p.m. ship the same day
Bearings 400 × 540 × 140 mm
2 items fitting a seat with 400 mm bore, 540 mm outside diameter and 140 mm width. All genuine FAG and INA, with manufacturer technical data.
This seat holds 2 items, all of the same type: cylindrical roller bearing.
How items of the same size differ
One seat size comes in several designs. The suffix tells them apart: 2Z means shields on both sides, 2RSR contact seals, C3 a clearance greater than normal (for higher operating temperatures); no clearance suffix means normal CN. For dirty environments choose contact seals, for high speed a shield.
How to measure a bearing
The bore d takes the shaft, the outside diameter D sits in the housing, B is the ring width. Measure with a caliper on a cold, cleaned bearing; catalogue sizes are whole millimetres or halves, so a reading of 24.97 mm means 25 mm.
Common questions about this size
- Which bearing has dimensions 400 × 540 × 140 mm?
- 2 items in our catalogue fit this seat — among them NNU4980-S-K-M-SP and SL024980-A-C3. The base number is shared across manufacturers; only the suffixes describing the design differ.
- Which of them are in stock?
- Nothing in this size is held in stock — every item is brought in to order. The delivery date is stated on each item's page.

