Spherical Roller Bearings
21304 W33 Bearing
20 × 52 × 15 mm
Also written 21304/W33
21304 W33 is the 21304 spherical roller bearing (20 mm bore, 52 mm outside diameter) with the option W33. The standard-design dimensions below come from our 213 series table.
21304 W33 Specifications
Standard-design values for 21304. Load and speed ratings can differ for sealed or special versions; we confirm them on quotation.
| Bearing No. | 21304 |
|---|---|
| d (Bore) | 20 mm |
| D (Outer Dia.) | 52 mm |
| B (Width) | 15 mm |
| Dynamic Load | 30,600 N |
| Static Load | 30,150 N |
| Max. RPM | 8,100 |
| Weight | 0.21 kg |
| Series | 213 Series Double Row Spherical Roller Bearings |
Reading the Designation 21304 W33
| 21304 | Base size: spherical roller bearing, 20 × 52 × 15 mm. |
|---|---|
| W33 | lubrication groove and holes in the outer ring |
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.
21304 W33 — Frequently Asked Questions
What are the dimensions of the 21304 W33 bearing?
The base size 21304 measures 20 × 52 × 15 mm (bore × outside diameter × width). Suffixes such as W33 change the sealing, clearance, cage or special treatment but not the boundary dimensions of the standard design.
What does 21304 W33 mean?
21304 is the base size. W33: lubrication groove and holes in the outer ring. Suffix meanings can differ slightly between manufacturers, so confirm the exact designation with us before ordering.
Can you supply the 21304 W33 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 21304 W33?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.