Tapered Roller Bearings
30310D Tapered Roller Bearing
50 × 110 × 29.25 mm
30310D is a tapered roller bearing from the 303D series with a 50 mm bore, a 110 mm outside diameter and a 29.25 mm overall width. It has a dynamic load rating of 101,700 N and a static load rating of 117,000 N and a speed rating of 3,780 rpm (oil lubrication), weighing about 1.25 kg. The radial cross-section (D − d) is 60 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
30310D Specifications
| Bearing No. | 30310D |
|---|---|
| d (Bore) | 50 mm |
| D (Outer Dia.) | 110 mm |
| T (Overall Width) | 29.25 mm |
| B (Cone Width) | 27 mm |
| C (Cup Width) | 19 mm |
| Dynamic Load | 101,700 N |
| Static Load | 117,000 N |
| Max. RPM | 3,780 |
| Weight | 1.25 kg |
| Series | 303D Series Single Row Tapered Roller Bearings |
30310D 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
30310D — Frequently Asked Questions
What are the dimensions of the 30310D bearing?
The 30310D has a bore (d) of 50 mm, an outside diameter (D) of 110 mm and a overall width of 29.25 mm, so it is written 50 × 110 × 29.25 mm.
What is the load rating of the 30310D?
Dynamic load rating 101,700 N and static load rating 117,000 N. The speed rating is 3,780 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 30310D available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 30310D P6 (higher running accuracy (ISO class 6)), 30310D M (machined brass cage). Tell us the exact designation you need in a quote request.
Which other bearings have the same 50 mm bore as the 30310D?
Other tapered roller bearings with a 50 mm bore include 32010 (80 mm OD), 33010 (80 mm OD), 33110 (85 mm OD), 30210 (90 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 30310D bearing across India?
Yes. Logass Trade Centre supplies the 30310D 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 30310D?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.