Tapered Roller Bearings
30309D Tapered Roller Bearing
45 × 100 × 27.25 mm
30309D is a tapered roller bearing from the 303D 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 86,400 N and a static load rating of 98,100 N and a speed rating of 4,140 rpm (oil lubrication), weighing about 0.958 kg. The radial cross-section (D − d) is 55 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
30309D Specifications
| 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 |
30309D Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 303D series page.
Neighbouring Sizes in the 303D Series
30309D — Frequently Asked Questions
What are the dimensions of the 30309D bearing?
The 30309D 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 30309D?
Dynamic load rating 86,400 N and static load rating 98,100 N. The speed rating is 4,140 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 30309D available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 30309D P6 (higher running accuracy (ISO class 6)), 30309D 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 30309D?
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 30309D bearing across India?
Yes. Logass Trade Centre supplies the 30309D Pan India with technical support, from single pieces to bulk orders. Use the quote button to share your quantity and brand preference.
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 the 30309D?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.