ENRO · Industrial bearing solutions
Industrial bearings with Japanese quality management and inspection of every unit
ENRO brings a structured approach to bearing quality: clear specifications, warehouse checks and inspection of every unit before shipment. Consistent packaging and written confirmation of your requirements help keep repeat orders aligned—from the first inquiry to the next delivery.
The range in numbers
431Models listed
19Series
10–500 mmBore range
100%Units inspected before shipment
- Structured quality managementQUALITY
- Every unit inspected before shipment100%
- Published model specificationsCATALOG
- Incoming and outgoing warehouse checksPROCESS
- OEM and neutral packagingAVAILABLE
Products
Explore ENRO bearings
Browse bearing types, available versions and model specifications.
Buyer problems
Why distributors and MRO buyers check ENRO
Four things that go wrong with a bearing order, and what each ENRO model page does about them.
01
Sizes that do not match
A worn marking or a regional part number leads to the wrong bearing on site.
ENRO: Every ENRO model page lists d, D, B and r min, and the size finder searches by measured dimensions.
02
Suffix confusion
ZZ, 2Z, 2RS, C3, K and W33 are written differently by different makers.
ENRO: Each model page lists the versions ENRO offers and what each suffix means.
03
Missing data
Quotes arrive without load ratings or weights, so the buyer cannot check the part.
ENRO: Model pages list catalog reference ratings next to the sizes. A value we have not confirmed is marked, not estimated.
04
Mixed-brand part lists
One order list carries part numbers from several makers.
ENRO: Send the whole list. We match each line to an ENRO model with the same d, D and B.
Range
Bearing lines and series
431 models in 19 series. Each series opens its size table.
Deep Groove Ball Bearings
Radial bearings for motors, pumps, gearboxes and wheel hubs. 200 models in 8 series.
| Series | Models | Bore d | Versions |
|---|---|---|---|
| 6700 | 7 | 10–30 mm | Open, 2RS, ZZ |
| 6800 | 28 | 10–160 mm | Open, ZZ, 2RS, NR |
| 6900 | 28 | 10–160 mm | Open, ZZ, 2RS, NR |
| 6000 | 31 | 10–160 mm | Open, ZZ, 2RS, NR |
| 6200 | 31 | 10–160 mm | Open, ZZ, 2RS, NR |
| 6300 | 31 | 10–160 mm | Open, ZZ, 2RS, NR |
| 16000 | 22 | 12–160 mm | Open, ZZ, 2RS, NR |
| 6400 | 22 | 17–130 mm | Open, 2RS, ZZ |
Spherical Roller Bearings
Self-aligning bearings for heavy radial load and shaft deflection. 231 models in 11 series.
| Series | Models | Bore d | Versions |
|---|---|---|---|
| 22200 | 33 | 25–360 mm | W33, K/W33 |
| 21300 | 16 | 25–100 mm | W33, K/W33 |
| 22300 | 28 | 40–400 mm | W33, K/W33 |
| 24000 | 28 | 65–500 mm | W33, K30/W33 |
| 23200 | 27 | 90–500 mm | W33, K/W33 |
| 23100 | 26 | 100–500 mm | W33, K/W33 |
| 24100 | 26 | 100–500 mm | W33, K30/W33 |
| 23000 | 25 | 110–500 mm | W33, K/W33 |
| 23900 | 18 | 180–500 mm | W33, K/W33 |
| 23800 · 24800 | 4 | 300–500 mm | W33, K/W33, K30/W33 |
Typical uses
Where these sizes are typically fitted
Common positions for the listed sizes, with a few models to start from. Check the final choice against the machine drawing.
Electric motors
Deep groove ball bearings at the motor end shields, alternators and generators.
Pumps
Deep groove ball bearings on pump shafts; spherical roller bearings on large pumps with heavy radial load.
Fans and blowers
Ball bearings on small fan motors; spherical roller bearings in housings on large fan shafts.
Gearboxes
Spherical roller bearings for heavy radial load and shaft deflection in industrial gearboxes.
Conveyors
Drive and tail pulleys on spherical roller bearings; drive motors on deep groove ball bearings.
Vibrating screens
Spherical roller bearings carry the shock load and misalignment of vibrating equipment. Specify C3 or C4 clearance.
Farm-machinery drives
Deep groove ball bearings on drive shafts and pulleys; sealed 2RS versions where dust reaches the bearing.
Choosing a seal
State the version per line on the RFQ. The suffix selector explains each code.
- Open
- The housing supplies the oil or grease, or the bearing runs very fast.
- ZZ
- Metal shields on both sides. Clean, dry positions at higher speed.
- 2RS
- Rubber contact seals on both sides. Dust or splash water reaches the bearing.
Selection
Duty × bearing type
General selection guidance. Check the final choice against the machine drawing.
| Duty | Deep groove ball | Spherical roller | Note |
|---|---|---|---|
| High speed, light to medium load | Recommended | Not typical | Deep groove ball, ZZ or open |
| Heavy radial load | Suitable for smaller loads | Recommended | Spherical roller, 222 / 223 series |
| Shaft misalignment or deflection | Not typical | Recommended | Spherical roller self-aligns |
| Dust or water | Recommended (2RS) | Housed with seals | 2RS contact seals |
| Shaft warmer than housing | Specify C3 | Specify C3 | State clearance on the RFQ |
| Sleeve mounting on a plain shaft | Not typical | Recommended (K bore) | Tapered bore 1:12 |
Quality control
Built to be checked, not believed.
What is checked before a bearing leaves, and what you can check yourself on the model page.
- 01
Sizes
d, D, B and r min are checked against the figures on the model page.
- 02
Warehouse
Bearings are inspected when they enter the warehouse, kept in storage there, and inspected again when they leave.
- 03
Every unit
100% outgoing inspection: each bearing is inspected before it is packed, not a sample from the batch.
- 04
Box and label
Every order ships in the same color box with the same label, and each box carries an anti-counterfeit label you can check with us (see the after-sales section below).
What every model page lets you check
- d
- Bore diameter, mm
- D
- Outside diameter, mm
- B
- Width, mm
- r min
- Minimum chamfer, mm
- Cr
- Basic dynamic load rating, kN
- C0r
- Basic static load rating, kN
- Speed
- Limiting speed with grease and with oil, rpm
- Mass
- Weight per unit, kg
- Versions
- Seals, shields, snap ring or bore type ENRO offers, with the suffix meaning
- HS code
- Customs heading
Load ratings, limiting speeds and weights are catalog reference values. Where a value has not been confirmed, the model page shows “On request”; ask and we confirm it for your batch.
Standards referenced
The numbers on the model pages are given in the terms of these ISO standards, so they can be compared with any maker's catalog.
ISO 15
Boundary dimensions
Dimension series: the same base number means the same d, D and B across makers.
ISO 492
Tolerances
Defines the tolerance classes for radial bearings. State the class you need on the RFQ.
ISO 5753-1
Internal clearance
Defines the clearance groups C2, CN, C3, C4 and C5. State the group you need on the RFQ.
ISO 281
Rating life
Basis of the L10 basic rating life. Use it with the catalog Cr in our life calculator.
Material and specification
| Item | Deep Groove Ball Bearings | Spherical Roller Bearings |
|---|---|---|
| Material | GCr15 chrome steel | GCr15 / GCr15SiMn chrome steel |
| Precision class | P0, P6 | P0, P6 |
| Cage | Steel, nylon | Steel, brass |
| Clearance group | C0 (CN), C3 | State it on the RFQ |
Dimension check 
Outgoing inspection 
Packaging concept 
Warehouse workflow
AI-generated process illustrations; packaging shown is a design concept.
Order terms
Order terms
- Payment
- Payment terms as set out in the sales contract.
- Samples
- Free samples.
- Branding and packing
- ENRO packing, OEM / private label and neutral packaging are all available.
Request a quote
Before you send an RFQ
What to put in the list, what we confirm, and what comes back.
What to send
- Model or part number per line, any brand
- Quantity per line
- Version: seal, shield, snap ring or bore type
- Clearance group, if not CN
- Destination port or country
What we confirm
- The ENRO model with the same d, D and B for each line
- The version and clearance group available for it
- Catalog ratings for the model
- Packing and marking for the order
What you receive
- A line-by-line reply from the export team
- The model page link for each line, so you can check the sizes and suffix yourself
- A quotation stating the price for each line
- The packing list at shipment
After-sales
If something goes wrong
- 01
Send the details
Email sales@enro.co.jp with the model, the order or invoice number, any batch marking on the box, and photos of the bearing and its label.
- 02
We reply
The export team reads the case and asks for anything missing, such as the mounting position or running conditions.
- 03
Agree the handling
We agree the next step with you in writing for that case.
Checking an ENRO label
Every ENRO bearing carries a verifiable anti-counterfeit label. To check a label, email a photo of the label and the box to us with the model number; the export team checks it and replies.
sales@enro.co.jpFAQ
Questions buyers ask before ordering
Which payment terms do you accept?
Payment terms as set out in the sales contract.
Can I get samples before a larger order?
Free samples.
Can you supply OEM, private label or neutral packing?
ENRO packing, OEM / private label and neutral packaging are all available. State the marking you need on the RFQ.
What happens if a bearing has a quality problem?
Email sales@enro.co.jp with the model, any batch marking on the box and photos of the bearing and the label. The export team replies and agrees the handling with you.
How do I check that a bearing is genuine ENRO?
Every ENRO bearing carries a verifiable anti-counterfeit label. To check a label, email a photo of the label and the box to us with the model number; the export team checks it and replies.
Can you match a part number from another brand?
Send any part number and we'll match the dimensionally equivalent ENRO model. Matching is by boundary dimensions only (dimensionally interchangeable); state seal, clearance and cage requirements on the RFQ.
Which HS code applies?
Deep groove ball bearings are classified under HS heading 8482.10 and spherical roller bearings under 8482.30. Your customs broker confirms the national tariff line for your destination.
How fast do you reply?
We reply within 24 hours on business days. Your inquiry goes straight to the export team, not a call center.
About
Who is behind ENRO
ENRO is a bearing brand for distributors and MRO buyers. Production is at partner factories in China; the export team handles quotations, packing and shipment. Every model page publishes its sizes and versions, so you can check a part before you order it.
About ENRO
Request a quote
Send us your bearing list
Part numbers from any maker, quantities per line. We match each line by size and confirm version and clearance in writing.