Bearings 300 × 420 × 56 mm
7 items fitting a seat with 300 mm bore, 420 mm outside diameter and 56 mm width. All genuine FAG and INA, with manufacturer technical data.
This seat holds 7 items: 6 × deep groove ball bearing and 1 × spindle bearing. They come with C3, C5 and CN clearance.
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 300 × 420 × 56 mm?
- 7 items in our catalogue fit this seat — among them B71960-C-T-P4S-UL, 61960-M-C3 and 61960-M-C5. 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.