Tapered Roller Bearings
33121 Tapered Roller Bearing
105 × 175 × 56 mm
33121 is a tapered roller bearing from the 331 series with a 105 mm bore, a 175 mm outside diameter and a 56 mm overall width. It has a dynamic load rating of 301,500 N and a static load rating of 477,000 N and a speed rating of 2,430 rpm (oil lubrication), weighing about 4.43 kg. The radial cross-section (D − d) is 70 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
33121 Specifications
| Bearing No. | 33121 |
|---|---|
| d (Bore) | 105 mm |
| D (Outer Dia.) | 175 mm |
| T (Overall Width) | 56 mm |
| B (Cone Width) | 56 mm |
| C (Cup Width) | 44 mm |
| Dynamic Load | 301,500 N |
| Static Load | 477,000 N |
| Max. RPM | 2,430 |
| Weight | 4.43 kg |
| Series | 331 Series Single Row Tapered Roller Bearings |
33121 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 331 series page.
33121 P6
higher running accuracy (ISO class 6)
33121 M
machined brass cage
Neighbouring Sizes in the 331 Series
33121 — Frequently Asked Questions
What are the dimensions of the 33121 bearing?
The 33121 has a bore (d) of 105 mm, an outside diameter (D) of 175 mm and a overall width of 56 mm, so it is written 105 × 175 × 56 mm.
What is the load rating of the 33121?
Dynamic load rating 301,500 N and static load rating 477,000 N. The speed rating is 2,430 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 33121 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 33121 P6 (higher running accuracy (ISO class 6)), 33121 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 33121?
Other tapered roller bearings with a 105 mm bore include 32021 (160 mm OD), 33021 (160 mm OD), 30221 (190 mm OD), 32221 (190 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 33121 bearing across India?
Yes. Logass Trade Centre supplies the 33121 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 33121?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.