Deep Groove Ball Bearings
6904 Deep Groove Ball Bearing
20 × 37 × 9 mm
6904 is a deep groove ball bearing from the 6900 series with a 20 mm bore, a 37 mm outside diameter and a 9 mm width. It has a dynamic load rating of 5,760 N and a static load rating of 3,330 N and a speed rating of 20,700 rpm (oil lubrication), weighing about 0.036 kg. The radial cross-section (D − d) is 17 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS

6904 Specifications
| Bearing No. | 6904 |
|---|---|
| d (Bore) | 20 mm |
| D (Outer Dia.) | 37 mm |
| B (Width) | 9 mm |
| Dynamic Load | 5,760 N |
| Static Load | 3,330 N |
| Max. RPM | 20,700 |
| Weight | 0.036 kg |
| Series | 6900 Series Single Row Thin Deep Groove Ball Bearings |
6904 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 6900 series page.
Neighbouring Sizes in the 6900 Series
6904 — Frequently Asked Questions
What are the dimensions of the 6904 bearing?
The 6904 has a bore (d) of 20 mm, an outside diameter (D) of 37 mm and a width of 9 mm, so it is written 20 × 37 × 9 mm.
What is the load rating of the 6904?
Dynamic load rating 5,760 N and static load rating 3,330 N. The speed rating is 20,700 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 6904 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 6904-ZZ (metal shields on both sides), 6904-2RS (rubber seals on both sides), 6904 C3 (radial clearance larger than normal), 6904-2RS 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 6904?
Other deep groove ball bearings with a 20 mm bore include 6804 (32 mm OD), 6004 (42 mm OD), 16004 (42 mm OD), 63004 (42 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 6904 bearing across India?
Yes. Logass Trade Centre supplies the 6904 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 6904?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.
