Tapered Roller Bearings
30309 Tapered Roller Bearing
45 × 100 × 27.25 mm
30309 is a tapered roller bearing from the 303 series with a 45 mm bore, a 100 mm outside diameter and a 27.25 mm overall width. It has a dynamic load rating of 99,900 N and a static load rating of 113,400 N and a speed rating of 4,770 rpm (oil lubrication), weighing about 1.01 kg. The radial cross-section (D − d) is 55 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
30309 Specifications
| Bearing No. | 30309 |
|---|---|
| d (Bore) | 45 mm |
| D (Outer Dia.) | 100 mm |
| T (Overall Width) | 27.25 mm |
| B (Cone Width) | 25 mm |
| C (Cup Width) | 22 mm |
| Dynamic Load | 99,900 N |
| Static Load | 113,400 N |
| Max. RPM | 4,770 |
| Weight | 1.01 kg |
| Series | 303 Series Single Row Tapered Roller Bearings |
30309 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 303 series page.
30309 P6
higher running accuracy (ISO class 6)
30309 M
machined brass cage
Neighbouring Sizes in the 303 Series
30309 — Frequently Asked Questions
What are the dimensions of the 30309 bearing?
The 30309 has a bore (d) of 45 mm, an outside diameter (D) of 100 mm and a overall width of 27.25 mm, so it is written 45 × 100 × 27.25 mm.
What is the load rating of the 30309?
Dynamic load rating 99,900 N and static load rating 113,400 N. The speed rating is 4,770 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 30309 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 30309 P6 (higher running accuracy (ISO class 6)), 30309 M (machined brass cage). Tell us the exact designation you need in a quote request.
Which other bearings have the same 45 mm bore as the 30309?
Other tapered roller bearings with a 45 mm bore include 32009 (75 mm OD), 33009 (75 mm OD), 33109 (80 mm OD), 30209 (85 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 30309 bearing across India?
Yes. Logass Trade Centre supplies the 30309 Pan India with technical support, from single pieces to bulk orders. Use the quote button to share your quantity and brand preference.
Need pricing on the 30309?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.