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NTN thrust ball bearings, 514 series: dimensions and part numbers
The NTN 514 series of thrust ball bearings brings together 15 part numbers in our catalogue across 15 basic sizes, from 51405 to 51420: bore (d) from 25 to 100 mm and outside diameter (D) from 60 to 210 mm. Every part number in the table links to its own page, where you can request a quote via WhatsApp or email.
514 series size chart
| Basic designation | d | D | H | Same size | Variants |
|---|---|---|---|---|---|
| 51405 | 25 | 60 | 24 | ||
| 51406 | 30 | 70 | 28 | ||
| 51407 | 35 | 80 | 32 | ||
| 51408 | 40 | 90 | 36 | ||
| 51409 | 45 | 100 | 39 | ||
| 51410 | 50 | 110 | 43 | ||
| 51411 | 55 | 120 | 48 | ||
| 51412 | 60 | 130 | 51 | ||
| 51413 | 65 | 140 | 56 | 65x140x56 | |
| 51414 | 70 | 150 | 60 | ||
| 51415 | 75 | 160 | 65 | ||
| 51416 | 80 | 170 | 68 | 80x170x68 | |
| 51417 | 85 | 180 | 72 | ||
| 51418 | 90 | 190 | 77 | ||
| 51420 | 100 | 210 | 85 |
In 14 of the 15 sizes the basic designation is also listed on its own, without a suffix. The most frequent NTN suffixes, with the number of sizes they appear in: A (1). The suffix defines the variant (sealing, cage, internal clearance or other options): to request a quote, send us the full part number marked on the bearing, the box or the drawing.
How to read the part number: 514 gives the bearing type and the dimension series; for the same bore, each series has a different outside diameter and height. What follows is the bore code: from 04 upwards, multiplying by 5 gives the bore in millimetres (in the 51406, 06 × 5 = 30 mm).
The table gives the boundary dimensions of each basic designation according to ISO 104, in millimetres: d is the bore, D the outside diameter and H the height. These are standardised dimensions: the same basic designation has the same dimensions in every brand.
If the part number on the bearing can no longer be read, measure the bore, the outside diameter and the height, and find the matching row: with that size and the variant you need, we will quote it.
More NTN thrust ball bearings series
Need a bearing from the NTN 514 series?
Tell us the complete part number, or the size and variant, plus the quantity, and we'll send a quote by WhatsApp or email.