Miniature & Extra Small Ball Bearings
693 Miniature & Extra Small Ball Bearing
3 × 8 × 3 mm
693 is a miniature & extra small ball bearing from the MX-1 series with a 3 mm bore, a 8 mm outside diameter and a 3 mm width. It has a dynamic load rating of 504 N and a static load rating of 161 N and a speed rating of 60,300 rpm (oil lubrication), weighing about 0.6 g. The radial cross-section (D − d) is 5 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
693 Specifications
| Bearing No. | 693 |
|---|---|
| d (Bore) | 3 mm |
| D (Outer Dia.) | 8 mm |
| B (Width) | 3 mm |
| Dynamic Load | 504 N |
| Static Load | 161 N |
| Max. RPM | 60,300 |
| Weight | 0.6 g |
| Series | Open Type Miniature & Extra Small Ball Bearings (1.5mm–3mm bore) |
693 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the MX-1 series page.
Neighbouring Sizes in the MX-1 Series
693 — Frequently Asked Questions
What are the dimensions of the 693 bearing?
The 693 has a bore (d) of 3 mm, an outside diameter (D) of 8 mm and a width of 3 mm, so it is written 3 × 8 × 3 mm.
What is the load rating of the 693?
Dynamic load rating 504 N and static load rating 161 N. The speed rating is 60,300 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 693 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 693-ZZ (metal shields on both sides), 693-2RS (rubber seals on both sides). Tell us the exact designation you need in a quote request.
Which other bearings have the same 3 mm bore as the 693?
Other miniature & extra small ball bearings with a 3 mm bore include F683 (6 mm OD), 3M06 (6 mm OD), F3M08 (7 mm OD), 683 (7 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 693 bearing across India?
Yes. Logass Trade Centre supplies the 693 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 miniature & extra small 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 693?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.