Self-Aligning Ball Bearings
1311 K Bearing
55 × 120 × 29 mm
Also written 1311/K
1311 K is the 1311 self-aligning ball bearing (55 mm bore, 120 mm outside diameter) with the option K. The standard-design dimensions below come from our 13 series table.
1311 K Specifications
Standard-design values for 1311. Load and speed ratings can differ for sealed or special versions; we confirm them on quotation.
| 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 |
Reading the Designation 1311 K
| 1311 | Base size: self-aligning ball bearing, 55 × 120 × 29 mm. |
|---|---|
| K | tapered bore, taper 1:12 |
Suffix meanings vary slightly between manufacturers (SKF, FAG, NTN, NSK and others each have their own codes), so we always confirm the exact designation before supplying.
Other Bearings with a 55 mm Bore
1311 K — Frequently Asked Questions
What are the dimensions of the 1311 K bearing?
The base size 1311 measures 55 × 120 × 29 mm (bore × outside diameter × width). Suffixes such as K change the sealing, clearance, cage or special treatment but not the boundary dimensions of the standard design.
What does 1311 K mean?
1311 is the base size. K: tapered bore, taper 1:12. Suffix meanings can differ slightly between manufacturers, so confirm the exact designation with us before ordering.
Can you supply the 1311 K bearing across India?
Yes. Share the exact designation, quantity and preferred brand through the quote button and our technical team will confirm availability and pricing within one business day.
Can’t find your size?
We supply sizes, brands and special versions of self-aligning 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 1311 K?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.