23996 Spherical Roller Bearing Dimensions
The ENRO 23996 is a spherical roller bearing in the 23900 series, 480 × 650 × 128 mm. Boundary dimensions follow the ISO 15 dimension series.
Three checks for the 23996
Most wrong replacements come from one of these. Each answer below comes from the ENRO model table.
Does the size match?
Measure bore, outside diameter and width. The 23996 is 480 × 650 × 128 mm. If one value differs, see the adjacent sizes below.
Adjacent sizes →Which version do you need?
ENRO lists 2 versions: 23996W33, 23996K/W33. Match the seals, shields or bore type of the old bearing.
Versions table →Is the load rating enough?
Cr 2900 kN, C0r 5700 kN (catalog reference values). Check the life at your load and speed.
Life calculator →Not sure which one you have? Send any part number and we'll match the dimensionally equivalent ENRO model.
Check my 2399623996 dimensions and ratings
| Bore diameterd | 480 mm |
|---|---|
| Outside diameterD | 650 mm |
| WidthB | 128 mm |
| Chamfer dimension, min.r min | 5 mm |
| Basic dynamic load ratingCr | 2900 kN |
| Basic static load ratingC0r | 5700 kN |
| Limiting speed, greasen grease | 560 rpm |
| Limiting speed, oiln oil | 1,000 rpm |
| Weight (approx.)m | 125.0 kg |
| Series | 23900 |
| Material | GCr15 / GCr15SiMn chrome steel |
| Precision class | P0, P6 |
| Cage | Steel, brass |
| Origin | Made in China — Japanese-standard quality management |
Load ratings, limiting speeds and weights are catalog reference values. Values are confirmed per batch on request.
What “23996” means
- 239 — bearing type and dimension series code.
- 96 — bore code: code 96 × 5 = 480 mm.
23996 variants: 23996W33 / 23996K/W33
| Order as | Meaning |
|---|---|
| 23996W33 | Lubrication groove and holes. Groove and holes in the outer ring for relubrication. |
| 23996K/W33 | Tapered bore 1:12 + Lubrication groove and holes. Tapered bore, taper 1:12, for adapter or withdrawal sleeve mounting. Groove and holes in the outer ring for relubrication. |
Internal clearance (for example CN or C3) is stated on your RFQ. Suffix selector →
Print or save this table as PDF, or ask us to send the spec sheet with your quote.
Selection notes for the 23996
How this size sits against its neighbours in the 23900 series and the other spherical roller bearing series with the same bore. Every figure is from the ENRO model table.
- The 23996 is the seventeenth of eighteen sizes ENRO lists in the 23900 series, 480 × 650 × 128 mm.
- Next size down, the 23992, is 460 × 620 × 118 mm: twenty millimetres less bore, 30 mm less outside diameter, ten millimetres narrower.
- Next size up, the 239/500, is 500 × 670 × 128 mm: twenty millimetres more bore, twenty millimetres more outside diameter, the same width.
- Six other ENRO spherical roller bearings share the 480 mm bore: the 23896 (23800 series) is 600 × 90 mm, 50 mm less outside diameter and 38 mm narrower; the 23096 (23000 series) is 700 × 165 mm, 50 mm more outside diameter and 37 mm wider.
- The 23996 has a radial section of 85 mm ((D − d) / 2) on a 128 mm width, so its cross-section is wider than it is tall.
- Catalog reference values for the 23996: Cr 2900 kN, C0r 5700 kN, limiting speed 560 rpm with grease, 1,000 rpm with oil, weight 125.0 kg.
- Catalog dynamic load rating Cr is 2900 kN for the 23996 against 2500 kN for the 23992 (noticeably less, 400 kN or 14%) and 2900 kN for the 239/500 (the same).
- ENRO lists the 23996 in two versions: 23996W33, 23996K/W33. In the same series, the 23992 is listed in the same two versions; the 239/500 is listed in the same two versions.
23996 bearing dimensions: range and series
18 sizes in the 23900 series.
Click a model to open its full specification page.
| Model | d mm | D mm | B mm | Cr kN | C0r kN | Grease rpm | Weight kg | Open model page |
|---|---|---|---|---|---|---|---|---|
| 23968 | 340 | 460 | 90 | 1460 | 2800 | 1,300 | 45.5 | |
| 23972 | 360 | 480 | 90 | 1400 | 2750 | 1,200 | 46.0 | |
| 23976 | 380 | 520 | 106 | 1960 | 3800 | 1,100 | 69 | |
| 23980 | 400 | 540 | 106 | 2000 | 3900 | 1,100 | 71 | |
| 23984 | 420 | 560 | 106 | 2040 | 4150 | 1,000 | 74 | |
| 23988 | 440 | 600 | 118 | 2450 | 4900 | 950 | 99 | |
| 23992 | 460 | 620 | 118 | 2500 | 5000 | 600 | 105 | |
| 23996 | 480 | 650 | 128 | 2900 | 5700 | 560 | 125.0 | This page |
| 239/500 | 500 | 670 | 128 | 2900 | 6000 | 530 | 130.0 |
Catalog reference values. Full 23900 series table →
If the 23996 is not quite right
Nearest ENRO sizes by bore and by series. Check the housing and shaft before switching.
Other series with a 480 mm bore
Click a model to open its full specification page.
| Model | Series | d | D | B | Cr kN | Open model page |
|---|---|---|---|---|---|---|
| 23996 | 23900 | 480 | 650 | 128 | 2900 | This page |
| 23896 | 23800 | 480 | 600 | 90 | 1440 | |
| 23096 | 23000 | 480 | 700 | 165 | 3900 | |
| 24096 | 24000 | 480 | 700 | 218 | 5300 | |
| 23196 | 23100 | 480 | 790 | 248 | 6950 | |
| 24196 | 24100 | 480 | 790 | 308 | 8000 | |
| 23296 | 23200 | 480 | 870 | 310 | 8300 |
Same 650 mm outside diameter, different bore
Click a model to open its full specification page.
Specifications and boundary dimensions
Built to be checked, not believed. Boundary dimensions follow the ISO 15 dimension series. Ratings follow ISO 281 and clearance groups ISO 5753-1; every value on a model page can be checked against the standard.
Boundary dimensions
Boundary dimensions follow the ISO 15 dimension series. Same base number, same d, D and B.
Tolerances
Defines the tolerance classes for radial bearings. State the class you need on the RFQ.
Internal clearance
Defines the clearance groups C2, CN, C3, C4 and C5. State the group you need on the RFQ.
Rating life
Basis of the L10 basic rating life. Use it with the catalog Cr in our life calculator.
Japan-managed quality control
ENRO is a bearing brand for distributors and MRO buyers. Our QC protocol follows Japanese industrial quality practice. Our bearings are made in China.
100% outgoing inspection
Every ENRO bearing — not a sample, every unit — passes outgoing inspection before shipment.
Same color, same box, same label
Every order ships in the same color box with the same label, so repeat shipments match on the shelf.
How to order the 23996: packing and marking
- Version
- Cylindrical or tapered bore (K, K30), with or without W33.
- Clearance group
- CN, C3 or another group. State it per line.
- Quantity per line
- Quantities per model and whether the order repeats.
- Marking options
- ENRO packing, OEM / private label or neutral packaging. State which one per line.
- Destination
- Port or country the order ships to.
Free samples are available.
Get a quote for a 23996
- Model or part number for each line
- Quantity per line
- Seal or shield, snap ring or bore type
- Clearance group, if not CN
- Destination port or country
We reply within 24 hours on business days.
Quote 23996Engineering tools built on our catalog data
23996 FAQ
What are the dimensions of the 23996 spherical roller bearing?
The 23996 has a bore (d) of 480 mm, an outside diameter (D) of 650 mm and a width (B) of 128 mm. Minimum chamfer r is 5 mm.
What load rating does the 23996 have?
Catalog reference values: basic dynamic load rating Cr 2900 kN, static rating C0r 5700 kN, limiting speed 560 rpm with grease. Values are confirmed per batch on request.
Which versions of the 23996 can I order?
ENRO lists the 23996 as 23996W33 (Lubrication groove and holes), 23996K/W33 (Tapered bore 1:12 + Lubrication groove and holes). State the clearance group you need in your RFQ.
Is the ENRO 23996 interchangeable with other brands' 23996?
Boundary dimensions follow the ISO 15 dimension series. The ENRO 23996 is dimensionally interchangeable with other brands' 23996 of the same size. Confirm seal, clearance and cage requirements in your RFQ.
Where are ENRO bearings made?
ENRO bearings are Made in China by partner factories, under Japan-managed quality control. Every unit passes 100% outgoing inspection before shipment.
Which bearings have the same bore as the 23996?
In the ENRO range, 23896 (480 × 600 × 90 mm), 23096 (480 × 700 × 165 mm), 24096 (480 × 700 × 218 mm), 23196 (480 × 790 × 248 mm) share the 480 mm bore. Outside diameter and width differ, so check the housing before switching.
Which clearance group should I order for the 23996?
CN (normal) suits most positions. C3 is common where the inner ring runs warmer than the outer ring, as in electric motors. Groups are defined in ISO 5753-1; state the one you need in your RFQ.
Quote the 23996
Send any part number and we'll match the dimensionally equivalent ENRO model. We reply within 24 hours on business days.