Technical data
32 parametersIdentification
- Manufacturer
- FAG
- Type
- Four-point contact bearing
- Part number (SKU)
- QJ308-XL-MPA#N1
- EAN
- 4012801180856
- Cage
- MPA
- Tolerance class
- PN
Dimensions
- Bore d
- 40 mm
- Outside diameter D
- 90 mm
- Width B
- 23 mm
- Mass
- 755 g
Load ratings and operation
- Dynamic load rating C
- 84000 N
- Static load rating C₀
- 62000 N
- Limiting speed
- 15400 1/min
Full manufacturer specification19 parameters · expand
- Axial internal clearance
- CN
- Cage
- MPA
- Category
- XL
- Contact angle
- 35.0 °
- Dimensional / heat stabilization
- S0
- Distance between pressure cone apexes
- 45.5 mm
- Fatigue load limit, radial
- 4350.0 N
- Inner ring shoulder diameter
- 56.65 mm
- Max. operating temperature
- 150.0 °C
- Maximum fillet radius
- 1.5 mm
- Maximum housing shoulder diameter
- 81.0 mm
- Min. operating temperature
- -30.0 °C
- Minimum chamfer
- 1.5 mm
- Minimum shaft shoulder diameter
- 49.0 mm
- Outer ring shoulder diameter
- 73.35 mm
- PFAS
- no
- REACH
- REACH compliant with declarable lead proportion
- Reference speed
- 6400.0 1/min
- RoHS
- RoHS compliant with declarable substances
Classification
- Manufacturer category
- Rolling and Plain Bearings › Ball Bearings › Four-Point Contact Ball Bearings
- eCl@ss class
- 23-05-08-03
- UNSPSC
- 31171504
Description
This four-point contact bearing carries radial and axial loads in both directions on a single row of balls, thanks to the split inner ring design. Bore diameter is 40.0 mm, outside diameter 90.0 mm, width 23.0 mm, and net mass 0.755 kg. The bearing is fitted with a solid brass cage (MPA), and reaches a limiting speed of 15400 1/min with a reference speed of 6400 1/min. The single-row four-point contact design allows this bearing to fix a shaft axially in both directions while keeping the cross-section narrow, which is useful where axial space is limited. The solid brass cage gives stable ball guidance and supports reliable operation at the stated speed values. As an open bearing, it requires separate sealing and lubrication suited to the operating conditions, and mounting must account for the split inner ring during assembly.
The same bearing from other manufacturers (5 designations)
Same size and design — suffix notation differs between brands.
FAG
QJ308-XL-MPA
original — this page
equivalent designation
KOYO
6308BI
RHP
QJ308
SKF
QJ308
SKF
QJ308MA
STEYR
QJ308MPA
This is a dimensional and design equivalent, not the same product. If in doubt, ask us before ordering.
QJ308-XL-MPA
Common designation: QJ308 MPA
Four-point contact bearing
⌀40 × 90 × 23 mm
od EUR 54.51net
+ VAT 23% = EUR 67.05 gross
This item is brought in to order (about 10 working days) and we sell it to business customers. Open a business account.
Cheaper in larger quantities
| from 5 pcs | EUR 53.42 | −2% |
| from 10 pcs | EUR 52.88 | −3% |
| from 25 pcs | EUR 51.79 | −5% |
| from 50 pcs | EUR 50.70 | −7% |
Our own item, temporarily out of stock — write to us for a date.
Shipping within the EU: DHL, GLS, from EUR 13.16 net. Transit time 3–5 business days after dispatch. Shipping and returns →
Buying for a company?
Open a business account →Documentation
Datasheet (PDF)RoHS / REACH compliance declaration (PDF)Opening a document for the first time can take up to a minute while the manufacturer prepares it.

