Cylindrical Roller Bearings
N318 Cylindrical Roller Bearing
90 × 190 × 43 mm
N318 is a cylindrical roller bearing from the N3 series with a 90 mm bore, a 190 mm outside diameter and a 43 mm width. It has a dynamic load rating of 216,000 N and a static load rating of 238,500 N and a speed rating of 3,870 rpm (oil lubrication), weighing about 5.18 kg. The radial cross-section (D − d) is 100 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
N318 Specifications
| Bearing No. | N318 |
|---|---|
| d (Bore) | 90 mm |
| D (Outer Dia.) | 190 mm |
| B (Width) | 43 mm |
| Dynamic Load | 216,000 N |
| Static Load | 238,500 N |
| Max. RPM | 3,870 |
| Weight | 5.18 kg |
| Series | N3 Series Single Row Cylindrical Roller Bearings |
N318 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the N3 series page.
N318 C3
radial clearance larger than normal
N318 M
machined brass cage
N318 K
tapered bore (1:12)
N318 P6
higher running accuracy (ISO class 6)
Neighbouring Sizes in the N3 Series
N318 — Frequently Asked Questions
What are the dimensions of the N318 bearing?
The N318 has a bore (d) of 90 mm, an outside diameter (D) of 190 mm and a width of 43 mm, so it is written 90 × 190 × 43 mm.
What is the load rating of the N318?
Dynamic load rating 216,000 N and static load rating 238,500 N. The speed rating is 3,870 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the N318 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include N318 C3 (radial clearance larger than normal), N318 M (machined brass cage), N318 K (tapered bore (1:12)), N318 P6 (higher running accuracy (ISO class 6)). Tell us the exact designation you need in a quote request.
Which other bearings have the same 90 mm bore as the N318?
Other cylindrical roller bearings with a 90 mm bore include NU1018 (140 mm OD), N218 (160 mm OD), NF218 (160 mm OD), NJ218 (160 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the N318 bearing across India?
Yes. Logass Trade Centre supplies the N318 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 N318?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.