Deep Groove Ball Bearings
6921 Deep Groove Ball Bearing
105 × 145 × 20 mm
6921 is a deep groove ball bearing from the 6900 series with a 105 mm bore, a 145 mm outside diameter and a 20 mm width. It has a dynamic load rating of 38,250 N and a static load rating of 37,800 N and a speed rating of 4,590 rpm (oil lubrication), weighing about 0.816 kg. The radial cross-section (D − d) is 40 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
6921 Specifications
| Bearing No. | 6921 |
|---|---|
| d (Bore) | 105 mm |
| D (Outer Dia.) | 145 mm |
| B (Width) | 20 mm |
| Dynamic Load | 38,250 N |
| Static Load | 37,800 N |
| Max. RPM | 4,590 |
| Weight | 0.816 kg |
| Series | 6900 Series Single Row Thin Deep Groove Ball Bearings |
6921 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
6921 — Frequently Asked Questions
What are the dimensions of the 6921 bearing?
The 6921 has a bore (d) of 105 mm, an outside diameter (D) of 145 mm and a width of 20 mm, so it is written 105 × 145 × 20 mm.
What is the load rating of the 6921?
Dynamic load rating 38,250 N and static load rating 37,800 N. The speed rating is 4,590 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 6921 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 6921-ZZ (metal shields on both sides), 6921-2RS (rubber seals on both sides), 6921 C3 (radial clearance larger than normal), 6921-2RS C3 (sealed, with C3 clearance). Tell us the exact designation you need in a quote request.
Which other bearings have the same 105 mm bore as the 6921?
Other deep groove ball bearings with a 105 mm bore include 6821 (130 mm OD), 6021 (160 mm OD), 16021 (160 mm OD), 6221 (190 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 6921 bearing across India?
Yes. Logass Trade Centre supplies the 6921 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 6921?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.