Cylindrical Roller Bearings
NU309 M Bearing
45 × 100 × 25 mm
Also written NU309/M
NU309 M is the NU309 cylindrical roller bearing (45 mm bore, 100 mm outside diameter) with the option M. The standard-design dimensions below come from our NU3 series table.
NU309 M Specifications
Standard-design values for NU309. Load and speed ratings can differ for sealed or special versions; we confirm them on quotation.
| Bearing No. | NU309 |
|---|---|
| d (Bore) | 45 mm |
| D (Outer Dia.) | 100 mm |
| B (Width) | 25 mm |
| Dynamic Load | 71,100 N |
| Static Load | 69,750 N |
| Max. RPM | 7,560 |
| Weight | 0.877 kg |
| Series | NU3 Series Single Row Cylindrical Roller Bearings |
Reading the Designation NU309 M
| NU309 | Base size: cylindrical roller bearing, 45 × 100 × 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
NU309 M — Frequently Asked Questions
What are the dimensions of the NU309 M bearing?
The base size NU309 measures 45 × 100 × 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 NU309 M mean?
NU309 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 NU309 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 cylindrical 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 NU309 M?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.