Self-Aligning Ball Bearings
1311 Self-Aligning Ball Bearing
55 × 120 × 29 mm
1311 is a self-aligning ball bearing from the 13 series with a 55 mm bore, a 120 mm outside diameter and a 29 mm width. It has a dynamic load rating of 46,350 N and a static load rating of 16,110 N and a speed rating of 4,680 rpm (oil lubrication), weighing about 1.58 kg. The radial cross-section (D − d) is 65 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
1311 Specifications
| Bearing No. | 1311 |
|---|---|
| d (Bore) | 55 mm |
| D (Outer Dia.) | 120 mm |
| B (Width) | 29 mm |
| Dynamic Load | 46,350 N |
| Static Load | 16,110 N |
| Max. RPM | 4,680 |
| Weight | 1.58 kg |
| Series | 13 Series Double Row Self-Aligning Ball Bearings |
1311 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 13 series page.
1311 K
tapered bore (1:12)
1311 C3
radial clearance larger than normal
1311-2RS
rubber seals on both sides
Neighbouring Sizes in the 13 Series
1311 — Frequently Asked Questions
What are the dimensions of the 1311 bearing?
The 1311 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 1311?
Dynamic load rating 46,350 N and static load rating 16,110 N. The speed rating is 4,680 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 1311 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 1311 K (tapered bore (1:12)), 1311 C3 (radial clearance larger than normal), 1311-2RS (rubber seals on both sides). Tell us the exact designation you need in a quote request.
Which other bearings have the same 55 mm bore as the 1311?
Other self-aligning ball bearings with a 55 mm bore include 1211 (100 mm OD), 2211 (100 mm OD), 2311 (120 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 1311 bearing across India?
Yes. Logass Trade Centre supplies the 1311 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 1311?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.