Cylindrical Roller Bearings
NU2311 Cylindrical Roller Bearing
55 × 120 × 43 mm
NU2311 is a cylindrical roller bearing from the NU23 series with a 55 mm bore, a 120 mm outside diameter and a 43 mm width. It has a dynamic load rating of 133,200 N and a static load rating of 145,800 N and a speed rating of 5,490 rpm (oil lubrication), weighing about 2.17 kg. The radial cross-section (D − d) is 65 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
NU2311 Specifications
| Bearing No. | NU2311 |
|---|---|
| d (Bore) | 55 mm |
| D (Outer Dia.) | 120 mm |
| B (Width) | 43 mm |
| Dynamic Load | 133,200 N |
| Static Load | 145,800 N |
| Max. RPM | 5,490 |
| Weight | 2.17 kg |
| Series | NU23 Series Single Row Cylindrical Roller Bearings |
NU2311 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the NU23 series page.
NU2311 C3
radial clearance larger than normal
NU2311 M
machined brass cage
NU2311 K
tapered bore (1:12)
NU2311 P6
higher running accuracy (ISO class 6)
Neighbouring Sizes in the NU23 Series
NU2311 — Frequently Asked Questions
What are the dimensions of the NU2311 bearing?
The NU2311 has a bore (d) of 55 mm, an outside diameter (D) of 120 mm and a width of 43 mm, so it is written 55 × 120 × 43 mm.
What is the load rating of the NU2311?
Dynamic load rating 133,200 N and static load rating 145,800 N. The speed rating is 5,490 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the NU2311 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include NU2311 C3 (radial clearance larger than normal), NU2311 M (machined brass cage), NU2311 K (tapered bore (1:12)), NU2311 P6 (higher running accuracy (ISO class 6)). Tell us the exact designation you need in a quote request.
Which other bearings have the same 55 mm bore as the NU2311?
Other cylindrical roller bearings with a 55 mm bore include NU1011 (90 mm OD), N211 (100 mm OD), NF211 (100 mm OD), NJ211 (100 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the NU2311 bearing across India?
Yes. Logass Trade Centre supplies the NU2311 Pan India with technical support, from single pieces to bulk orders. Use the quote button to share your quantity and brand preference.
Need pricing on the NU2311?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.