Tapered Roller Bearings
30309D M Bearing
45 × 100 × 27.25 mm
Also written 30309D/M
30309D M is the 30309D tapered roller bearing (45 mm bore, 100 mm outside diameter) with the option M. The standard-design dimensions below come from our 303D series table.
30309D M Specifications
Standard-design values for 30309D. Load and speed ratings can differ for sealed or special versions; we confirm them on quotation.
| Bearing No. | 30309D |
|---|---|
| d (Bore) | 45 mm |
| D (Outer Dia.) | 100 mm |
| T (Overall Width) | 27.25 mm |
| B (Cone Width) | 25 mm |
| C (Cup Width) | 18 mm |
| Dynamic Load | 86,400 N |
| Static Load | 98,100 N |
| Max. RPM | 4,140 |
| Weight | 0.958 kg |
| Series | 303D Series Single Row Tapered Roller Bearings |
Reading the Designation 30309D M
| 30309D | Base size: tapered roller bearing, 45 × 100 × 27.25 mm. |
|---|---|
| M | machined brass cage |
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
30309D M — Frequently Asked Questions
What are the dimensions of the 30309D M bearing?
The base size 30309D measures 45 × 100 × 27.25 mm (bore × outside diameter × width). Suffixes such as M change the sealing, clearance, cage or special treatment but not the boundary dimensions of the standard design.
What does 30309D M mean?
30309D is the base size. M: machined brass cage. Suffix meanings can differ slightly between manufacturers, so confirm the exact designation with us before ordering.
Can you supply the 30309D M 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 tapered 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 30309D M?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.