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NSK spherical roller bearings, 213 series: dimensions and part numbers
The NSK 213 series of spherical roller bearings brings together 38 part numbers in our catalogue across 17 basic sizes, from 21304 to 21320: bore (d) from 20 to 100 mm and outside diameter (D) from 62 to 215 mm. Every part number in the table links to its own page, where you can request a quote via WhatsApp or email.
213 series size chart
| Basic designation | d | D | B | Same size | Variants |
|---|---|---|---|---|---|
| 21304 | 20 | Dimension not yet confirmed | Dimension not yet confirmed | ||
| 21305 | 25 | 62 | 17 | 25x62x17 | |
| 21306 | 30 | 72 | 19 | 30x72x19 | |
| 21307 | 35 | 80 | 21 | 35x80x21 | |
| 21308 | 40 | 90 | 23 | 40x90x23 | |
| 21309 | 45 | 100 | 25 | 45x100x25 | |
| 21310 | 50 | 110 | 27 | 50x110x27 | |
| 21311 | 55 | 120 | 29 | 55x120x29 | |
| 21312 | 60 | 130 | 31 | 60x130x31 | |
| 21313 | 65 | 140 | 33 | 65x140x33 | |
| 21314 | 70 | 150 | 35 | 70x150x35 | |
| 21315 | 75 | 160 | 37 | 75x160x37 | |
| 21316 | 80 | 170 | 39 | 80x170x39 | |
| 21317 | 85 | 180 | 41 | 85x180x41 | |
| 21318 | 90 | 190 | 43 | 90x190x43 | |
| 21319 | 95 | 200 | 45 | 95x200x45 | |
| 21320 | 100 | 215 | 47 | 100x215x47 |
Every part number in this series carries a suffix after the basic designation. The most frequent NSK suffixes, with the number of sizes they appear in: EAE4 (11), EAKE4 (11), CDE4 (4), CDKE4 (4), and CAME4 (2). 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: 213 gives the bearing type and the dimension series; for the same bore, each series has a different outside diameter and width. What follows is the bore code: from 04 upwards, multiplying by 5 gives the bore in millimetres (in the 21306, 06 × 5 = 30 mm).
The table gives the boundary dimensions of each basic designation according to ISO 15, in millimetres: d is the bore, D the outside diameter and B the width. These are standardised dimensions: the same basic designation has the same dimensions in every brand. Where a dash appears, the dimension has not been validated yet: we confirm it when we quote.
If the part number on the bearing can no longer be read, measure the bore, the outside diameter and the width, and find the matching row: with that size and the variant you need, we will quote it.
More NSK spherical roller bearings series
Need a bearing from the NSK 213 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.