Official distributor
NTN thrust ball bearings, 511 series: dimensions and part numbers
The NTN 511 series of thrust ball bearings brings together 44 part numbers in our catalogue across 44 basic sizes, from 51100 to 51196: bore (d) from 10 to 480 mm and outside diameter (D) from 24 to 580 mm. Every part number in the table links to its own page, where you can request a quote via WhatsApp or email.
511 series dimension table
| Basic designation | d | D | H | Same size | Variants |
|---|---|---|---|---|---|
| 51100 | 10 | 24 | 9 | ||
| 51101 | 12 | 26 | 9 | ||
| 51102 | 15 | 28 | 9 | ||
| 51103 | 17 | 30 | 9 | ||
| 51104 | 20 | 35 | 10 | ||
| 51105 | 25 | 42 | 11 | ||
| 51106 | 30 | 47 | 11 | ||
| 51107 | 35 | 52 | 12 | ||
| 51108 | 40 | 60 | 13 | ||
| 51109 | 45 | 65 | 14 | ||
| 51110 | 50 | 70 | 14 | ||
| 51111 | 55 | 78 | 16 | ||
| 51112 | 60 | 85 | 17 | ||
| 51113 | 65 | 90 | 18 | ||
| 51114 | 70 | 95 | 18 | ||
| 51115 | 75 | 100 | 19 | ||
| 51116 | 80 | 105 | 19 | ||
| 51117 | 85 | 110 | 19 | ||
| 51118 | 90 | 120 | 22 | ||
| 51120 | 100 | 135 | 25 | ||
| 51122 | 110 | 145 | 25 | ||
| 51124 | 120 | 155 | 25 | ||
| 51126 | 130 | 170 | 30 | ||
| 51128 | 140 | 180 | 31 | ||
| 51130 | 150 | 190 | 31 | ||
| 51132 | 160 | 200 | 31 | ||
| 51134 | 170 | 215 | 34 | ||
| 51136 | 180 | 225 | 34 | ||
| 51138 | 190 | 240 | 37 | ||
| 51140 | 200 | 250 | 37 | ||
| 51144 | 220 | 270 | 37 | ||
| 51148 | 240 | 300 | 45 | ||
| 51152 | 260 | 320 | 45 | ||
| 51156 | 280 | 350 | 53 | ||
| 51160 | 300 | 380 | 62 | ||
| 51164 | 320 | 400 | 63 | ||
| 51168 | 340 | 420 | 64 | ||
| 51172 | 360 | 440 | 65 | ||
| 51176 | 380 | 460 | 65 | ||
| 51180 | 400 | 480 | 65 | ||
| 51184 | 420 | 500 | 65 | ||
| 51188 | 440 | 540 | 80 | ||
| 51192 | 460 | 560 | 80 | ||
| 51196 | 480 | 580 | 80 |
In 44 of the 44 sizes the basic designation is also listed on its own, without a suffix. 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: 511 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 51106, 06 × 5 = 30 mm); 00, 01, 02 and 03 stand for 10, 12, 15 and 17 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.
Other NTN thrust ball bearings series
Which NTN 511 series bearing do you need?
Send us the full part number, or the size and the variant, with the quantity: we will quote it via WhatsApp or email.