16011 Bearing Dimensions
The ENRO 16011 is a deep groove ball bearing in the 16000 series, 55 × 90 × 11 mm. Boundary dimensions follow the ISO 15 dimension series.
Three checks for the 16011
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 16011 is 55 × 90 × 11 mm. If one value differs, see the adjacent sizes below.
Adjacent sizes →Which version do you need?
ENRO lists 3 versions: 16011, 16011-ZZ, 16011-2RS. Match the seals, shields or bore type of the old bearing.
Versions table →Is the load rating enough?
Cr 16.74 kN, C0r 14.69 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 1601116011 dimensions and ratings
| Bore diameterd | 55 mm |
|---|---|
| Outside diameterD | 90 mm |
| WidthB | 11 mm |
| Chamfer dimension, min.r min | 0.6 mm |
| Basic dynamic load ratingCr | 16.74 kN |
| Basic static load ratingC0r | 14.69 kN |
| Limiting speed, greasen grease | 7,300 rpm |
| Limiting speed, oiln oil | 8,600 rpm |
| Weight (approx.)m | 0.257 kg |
| Series | 16000 |
| HS code | 8482.10 |
| Material | GCr15 chrome steel |
| Precision class | P0, P6 |
| Cage | Steel, nylon |
| Clearance group | C0 (CN), C3 |
| 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 “16011” means
- 160 — bearing type and dimension series code.
- 11 — bore code: code 11 × 5 = 55 mm.
16011 variants: 16011 / 16011-ZZ / 16011-2RS
| Order as | Meaning |
|---|---|
| 16011 | Open. No shields or seals. Lubricated in service by grease or oil. |
| 16011-ZZ | Metal shields, both sides. Non-contact steel shields. Low friction; keeps out larger particles. |
| 16011-2RS | Rubber seals, both sides. Contact rubber seals. Better protection against dust and water; slightly higher friction. |
State the clearance group per line 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 16011
How this size sits against its neighbours in the 16000 series and the other deep groove ball bearing series with the same bore. Every figure is from the ENRO model table.
- The 16011 is the eleventh of twenty-two sizes ENRO lists in the 16000 series, 55 × 90 × 11 mm.
- Next size down, the 16010, is 50 × 80 × 10 mm: five millimetres less bore, ten millimetres less outside diameter, one millimetre narrower.
- Next size up, the 16012, is 60 × 95 × 11 mm: five millimetres more bore, five millimetres more outside diameter, the same width.
- Six other ENRO deep groove ball bearings share the 55 mm bore: the 6911 (6900 series) is 80 × 13 mm, ten millimetres less outside diameter and two millimetres wider; the 6211 (6200 series) is 100 × 21 mm, ten millimetres more outside diameter and ten millimetres wider.
- The 16011 has a radial section of 17.5 mm ((D − d) / 2) on a 11 mm width, so its cross-section is taller than it is wide.
- Catalog reference values for the 16011: Cr 16.74 kN, C0r 14.69 kN, limiting speed 7,300 rpm with grease, 8,600 rpm with oil, weight 0.257 kg.
- Catalog dynamic load rating Cr is 16.74 kN for the 16011 against 11.88 kN for the 16010 (substantially less, 4.86 kN or 29%) and 18.00 kN for the 16012 (slightly more, 1.26 kN or 8%).
- ENRO lists the 16011 in three versions: 16011, 16011-ZZ, 16011-2RS. In the same series, the 16010 is listed in the same three versions; the 16012 is listed in the same three versions.
16011 bearing dimensions: range and series
22 sizes in the 16000 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 |
|---|---|---|---|---|---|---|---|---|
| 16007 | 35 | 62 | 9 | 10.53 | 7.87 | 11,000 | 0.107 | |
| 16008 | 40 | 68 | 9 | 11.34 | 9.26 | 9,500 | 0.130 | |
| 16009 | 45 | 75 | 10 | 11.61 | 10.08 | 8,700 | 0.167 | |
| 16010 | 50 | 80 | 10 | 11.88 | 10.85 | 8,000 | 0.175 | |
| 16011 | 55 | 90 | 11 | 16.74 | 14.69 | 7,300 | 0.257 | This page |
| 16012 | 60 | 95 | 11 | 18.00 | 16.80 | 6,700 | 0.281 | |
| 16013 | 65 | 100 | 11 | 18.45 | 17.95 | 6,200 | 0.300 | |
| 16014 | 70 | 110 | 13 | 21.96 | 21.70 | 5,800 | 0.441 | |
| 16015 | 75 | 115 | 13 | 22.50 | 23.04 | 5,400 | 0.463 |
Catalog reference values. Full 16000 series table →
If the 16011 is not quite right
Nearest ENRO sizes by bore and by series. Check the housing and shaft before switching.
Other series with a 55 mm bore
Click a model to open its full specification page.
| Model | Series | d | D | B | Cr kN | Open model page |
|---|---|---|---|---|---|---|
| 16011 | 16000 | 55 | 90 | 11 | 16.74 | This page |
| 6811 | 6800 | 55 | 72 | 9 | 7.92 | |
| 6911 | 6900 | 55 | 80 | 13 | 14.40 | |
| 6011 | 6000 | 55 | 90 | 18 | 25.47 | |
| 6211 | 6200 | 55 | 100 | 21 | 39.15 | |
| 6311 | 6300 | 55 | 120 | 29 | 64.35 | |
| 6411 | 6400 | 55 | 140 | 33 | 89.00 |
Same 90 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 16011: packing and marking
- Version
- Open, shielded (ZZ), sealed (2RS) or snap ring (NR).
- 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 16011
- 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 16011Engineering tools built on our catalog data
16011 FAQ
What are the dimensions of the 16011 deep groove ball bearing?
The 16011 has a bore (d) of 55 mm, an outside diameter (D) of 90 mm and a width (B) of 11 mm. Minimum chamfer r is 0.6 mm.
What load rating does the 16011 have?
Catalog reference values: basic dynamic load rating Cr 16.74 kN, static rating C0r 14.69 kN, limiting speed 7,300 rpm with grease. Values are confirmed per batch on request.
Which versions of the 16011 can I order?
ENRO lists the 16011 as 16011 (Open), 16011-ZZ (Metal shields, both sides), 16011-2RS (Rubber seals, both sides). State the clearance group you need in your RFQ.
Is the ENRO 16011 interchangeable with other brands' 16011?
Boundary dimensions follow the ISO 15 dimension series. The ENRO 16011 is dimensionally interchangeable with other brands' 16011 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.
What is the difference between 16011-ZZ and 16011-2RS?
16011-ZZ has metal shields, both sides: Non-contact steel shields. Low friction; keeps out larger particles. 16011-2RS has rubber seals, both sides: Contact rubber seals. Better protection against dust and water; slightly higher friction. Boundary dimensions are the same.
Which bearings have the same bore as the 16011?
In the ENRO range, 6811 (55 × 72 × 9 mm), 6911 (55 × 80 × 13 mm), 6011 (55 × 90 × 18 mm), 6211 (55 × 100 × 21 mm) share the 55 mm bore. Outside diameter and width differ, so check the housing before switching.
Which clearance group should I order for the 16011?
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.
What is the HS code for the 16011?
Deep Groove Ball Bearings are classified under HS Code 8482.10. Confirm the code with your customs broker.
Quote the 16011
Send any part number and we'll match the dimensionally equivalent ENRO model. We reply within 24 hours on business days.