Cylindrical Roller Bearings
NU421 Cylindrical Roller Bearing
105 × 260 × 60 mm
NU421 is a cylindrical roller bearing from the NU4 series with a 105 mm bore, a 260 mm outside diameter and a 60 mm width. It has a dynamic load rating of 445,500 N and a static load rating of 499,500 N and a speed rating of 2,340 rpm (oil lubrication), weighing about 16.6 kg. The radial cross-section (D − d) is 155 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
NU421 Specifications
| Bearing No. | NU421 |
|---|---|
| d (Bore) | 105 mm |
| D (Outer Dia.) | 260 mm |
| B (Width) | 60 mm |
| Dynamic Load | 445,500 N |
| Static Load | 499,500 N |
| Max. RPM | 2,340 |
| Weight | 16.6 kg |
| Series | NU4 Series Single Row Cylindrical Roller Bearings |
NU421 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the NU4 series page.
NU421 C3
radial clearance larger than normal
NU421 M
machined brass cage
NU421 K
tapered bore (1:12)
NU421 P6
higher running accuracy (ISO class 6)
Neighbouring Sizes in the NU4 Series
NU421 — Frequently Asked Questions
What are the dimensions of the NU421 bearing?
The NU421 has a bore (d) of 105 mm, an outside diameter (D) of 260 mm and a width of 60 mm, so it is written 105 × 260 × 60 mm.
What is the load rating of the NU421?
Dynamic load rating 445,500 N and static load rating 499,500 N. The speed rating is 2,340 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the NU421 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include NU421 C3 (radial clearance larger than normal), NU421 M (machined brass cage), NU421 K (tapered bore (1:12)), NU421 P6 (higher running accuracy (ISO class 6)). Tell us the exact designation you need in a quote request.
Which other bearings have the same 105 mm bore as the NU421?
Other cylindrical roller bearings with a 105 mm bore include NU1021 (160 mm OD), N221 (190 mm OD), NF221 (190 mm OD), NJ221 (190 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the NU421 bearing across India?
Yes. Logass Trade Centre supplies the NU421 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 NU421?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.