Deep Groove Ball Bearings
6404 Deep Groove Ball Bearing
20 × 72 × 19 mm
6404 is a deep groove ball bearing from the 6400 series with a 20 mm bore, a 72 mm outside diameter and a 19 mm width. It has a dynamic load rating of 27,630 N and a static load rating of 13,500 N and a speed rating of 11,700 rpm (oil lubrication), weighing about 0.4 kg. The radial cross-section (D − d) is 52 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
6404 Specifications
| Bearing No. | 6404 |
|---|---|
| d (Bore) | 20 mm |
| D (Outer Dia.) | 72 mm |
| B (Width) | 19 mm |
| Dynamic Load | 27,630 N |
| Static Load | 13,500 N |
| Max. RPM | 11,700 |
| Weight | 0.4 kg |
| Series | 6400 Series Single Row Heavy Duty Deep Groove Ball Bearings |
6404 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 6400 series page.
Neighbouring Sizes in the 6400 Series
6404 — Frequently Asked Questions
What are the dimensions of the 6404 bearing?
The 6404 has a bore (d) of 20 mm, an outside diameter (D) of 72 mm and a width of 19 mm, so it is written 20 × 72 × 19 mm.
What is the load rating of the 6404?
Dynamic load rating 27,630 N and static load rating 13,500 N. The speed rating is 11,700 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 6404 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 6404-ZZ (metal shields on both sides), 6404-2RS (rubber seals on both sides), 6404 C3 (radial clearance larger than normal), 6404-2RS C3 (sealed, with C3 clearance). Tell us the exact designation you need in a quote request.
Which other bearings have the same 20 mm bore as the 6404?
Other deep groove ball bearings with a 20 mm bore include 6804 (32 mm OD), 6904 (37 mm OD), 6004 (42 mm OD), 16004 (42 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 6404 bearing across India?
Yes. Logass Trade Centre supplies the 6404 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 deep groove ball 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 6404?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.