Spherical Roller Bearings
21309 K Bearing
45 × 100 × 25 mm
Also written 21309/K
21309 K is the 21309 spherical roller bearing (45 mm bore, 100 mm outside diameter) with the option K. The standard-design dimensions below come from our 213 series table.
21309 K Specifications
Standard-design values for 21309. Load and speed ratings can differ for sealed or special versions; we confirm them on quotation.
| Bearing No. | 21309 |
|---|---|
| d (Bore) | 45 mm |
| D (Outer Dia.) | 100 mm |
| B (Width) | 25 mm |
| Dynamic Load | 91,800 N |
| Static Load | 95,400 N |
| Max. RPM | 2,700 |
| Weight | 0.927 kg |
| Series | 213 Series Double Row Spherical Roller Bearings |
Reading the Designation 21309 K
| 21309 | Base size: spherical roller bearing, 45 × 100 × 25 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 45 mm Bore
21309 K — Frequently Asked Questions
What are the dimensions of the 21309 K bearing?
The base size 21309 measures 45 × 100 × 25 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 21309 K mean?
21309 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 21309 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 spherical roller 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 21309 K?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.