Spherical Roller Bearings
21308 K Bearing
40 × 90 × 23 mm
Also written 21308/K
21308 K is the 21308 spherical roller bearing (40 mm bore, 90 mm outside diameter) with the option K. The standard-design dimensions below come from our 213 series table.
21308 K Specifications
Standard-design values for 21308. Load and speed ratings can differ for sealed or special versions; we confirm them on quotation.
| Bearing No. | 21308 |
|---|---|
| d (Bore) | 40 mm |
| D (Outer Dia.) | 90 mm |
| B (Width) | 23 mm |
| Dynamic Load | 79,200 N |
| Static Load | 81,000 N |
| Max. RPM | 2,970 |
| Weight | 0.705 kg |
| Series | 213 Series Double Row Spherical Roller Bearings |
Reading the Designation 21308 K
| 21308 | Base size: spherical roller bearing, 40 × 90 × 23 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 40 mm Bore
21308 K — Frequently Asked Questions
What are the dimensions of the 21308 K bearing?
The base size 21308 measures 40 × 90 × 23 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 21308 K mean?
21308 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 21308 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 21308 K?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.