Technical data

32 parameters

Identification

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.

Comparison and details →

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.

FAG

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

Temporarily out of stocktemporarily out of stock

This item is brought in to order (about 10 working days) and we sell it to business customers. Open a business account.

QJ308-XL-MPA—
EUR 54.51

Cheaper in larger quantities

from 5 pcsEUR 53.42−2%
from 10 pcsEUR 52.88−3%
from 25 pcsEUR 51.79−5%
from 50 pcsEUR 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 →

Symbol (SKU)QJ308-XL-MPA#N1
EAN4012801180856
Wymiary⌀40 × 90 × 23 mm
Masa755 g

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.

Need fitting, lubrication or a vibration check?