Four Point Contact Ball Bearings
QJ311 Four Point Contact Ball Bearing
55 × 120 × 29 mm
QJ311 is a four point contact ball bearing from the QJ300 series with a 55 mm bore, a 120 mm outside diameter and a 29 mm width. It has a dynamic load rating of 114,300 N and a static load rating of 97,200 N and a speed rating of 5,400 rpm (oil lubrication), weighing about 1.75 kg. The radial cross-section (D − d) is 65 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
QJ311 Specifications
| Bearing No. | QJ311 |
|---|---|
| d (Bore) | 55 mm |
| D (Outer Dia.) | 120 mm |
| B (Width) | 29 mm |
| Dynamic Load | 114,300 N |
| Static Load | 97,200 N |
| Max. RPM | 5,400 |
| Weight | 1.75 kg |
| Series | QJ300 Series Four Point Contact Ball Bearings |
Other Bearings with 55 mm Bore
| Bearing No. | Series | D (Outer Dia.) mm | Dynamic Load N |
|---|---|---|---|
| QJ211 | QJ200 | 100 | 71,370 |
Neighbouring Sizes in the QJ300 Series
QJ311 — Frequently Asked Questions
What are the dimensions of the QJ311 bearing?
The QJ311 has a bore (d) of 55 mm, an outside diameter (D) of 120 mm and a width of 29 mm, so it is written 55 × 120 × 29 mm.
What is the load rating of the QJ311?
Dynamic load rating 114,300 N and static load rating 97,200 N. The speed rating is 5,400 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Which other bearings have the same 55 mm bore as the QJ311?
Other four point contact ball bearings with a 55 mm bore include QJ211 (100 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the QJ311 bearing across India?
Yes. Logass Trade Centre supplies the QJ311 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 QJ311?
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