Tapered Roller Bearings
30321D Tapered Roller Bearing
105 × 225 × 53.5 mm
30321D is a tapered roller bearing from the 303D series with a 105 mm bore, a 225 mm outside diameter and a 53.5 mm overall width. It has a dynamic load rating of 297,000 N and a static load rating of 355,500 N and a speed rating of 1,800 rpm (oil lubrication), weighing about 9.2 kg. The radial cross-section (D − d) is 120 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
30321D Specifications
| Bearing No. | 30321D |
|---|---|
| d (Bore) | 105 mm |
| D (Outer Dia.) | 225 mm |
| T (Overall Width) | 53.5 mm |
| B (Cone Width) | 49 mm |
| C (Cup Width) | 36 mm |
| Dynamic Load | 297,000 N |
| Static Load | 355,500 N |
| Max. RPM | 1,800 |
| Weight | 9.2 kg |
| Series | 303D Series Single Row Tapered Roller Bearings |
30321D 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
30321D — Frequently Asked Questions
What are the dimensions of the 30321D bearing?
The 30321D has a bore (d) of 105 mm, an outside diameter (D) of 225 mm and a overall width of 53.5 mm, so it is written 105 × 225 × 53.5 mm.
What is the load rating of the 30321D?
Dynamic load rating 297,000 N and static load rating 355,500 N. The speed rating is 1,800 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 30321D available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 30321D P6 (higher running accuracy (ISO class 6)), 30321D M (machined brass cage). Tell us the exact designation you need in a quote request.
Which other bearings have the same 105 mm bore as the 30321D?
Other tapered roller bearings with a 105 mm bore include 32021 (160 mm OD), 33021 (160 mm OD), 33121 (175 mm OD), 30221 (190 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 30321D bearing across India?
Yes. Logass Trade Centre supplies the 30321D 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 30321D?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.