Four Point Contact Ball Bearings
QJ308 Four Point Contact Ball Bearing
40 × 90 × 23 mm
QJ308 is a four point contact ball bearing from the QJ300 series with a 40 mm bore, a 90 mm outside diameter and a 23 mm width. It has a dynamic load rating of 64,350 N and a static load rating of 52,650 N and a speed rating of 7,650 rpm (oil lubrication), weighing about 0.78 kg. The radial cross-section (D − d) is 50 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
QJ308 Specifications
| Bearing No. | QJ308 |
|---|---|
| d (Bore) | 40 mm |
| D (Outer Dia.) | 90 mm |
| B (Width) | 23 mm |
| Dynamic Load | 64,350 N |
| Static Load | 52,650 N |
| Max. RPM | 7,650 |
| Weight | 0.78 kg |
| Series | QJ300 Series Four Point Contact Ball Bearings |
Other Bearings with 40 mm Bore
| Bearing No. | Series | D (Outer Dia.) mm | Dynamic Load N |
|---|---|---|---|
| QJ208 | QJ200 | 80 | 47,430 |
Neighbouring Sizes in the QJ300 Series
QJ308 — Frequently Asked Questions
What are the dimensions of the QJ308 bearing?
The QJ308 has a bore (d) of 40 mm, an outside diameter (D) of 90 mm and a width of 23 mm, so it is written 40 × 90 × 23 mm.
What is the load rating of the QJ308?
Dynamic load rating 64,350 N and static load rating 52,650 N. The speed rating is 7,650 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Which other bearings have the same 40 mm bore as the QJ308?
Other four point contact ball bearings with a 40 mm bore include QJ208 (80 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the QJ308 bearing across India?
Yes. Logass Trade Centre supplies the QJ308 Pan India with technical support, from single pieces to bulk orders. Use the quote button to share your quantity and brand preference.
Can’t find your size?
We supply sizes, brands and special versions of four point contact ball bearings that are not listed on this page. Type the exact size or designation you need and send it to us for a quote.
Need pricing on the QJ308?
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