Part number · Deep groove ball bearing
6021 Bearing – Size, Stock & Today’s Price
6021: a 105 × 160 × 26 mm deep groove ball bearing. Genuine SKF, FAG, NTN, NSK, KOYO and HCH, supplied across India with same or next-day delivery in Mumbai.
Deep groove ball bearing
- Bore (d)
- 105 mm
- Outside diameter (D)
- 160 mm
- Width (B)
- 26 mm
- Dynamic load rating (C)
- 76.1 kN
Available – ask for stock · Multiple brands
Prices change with brand, variant and quantity, so we quote today’s rate and reply during working hours.
The 6021 is an extra-light-series deep groove ball bearing with a 105 mm bore, a 160 mm outside diameter and a width of 26 mm. The 60 series is the slimmer choice for a given shaft: a smaller outside diameter and width than the 62, for machines where space and weight matter more than heavy loads.
Its last two digits, 21, multiplied by 5 give the 105 mm bore. A full designation such as 6021-2RS-C3 means a 6021 with rubber seals on both sides and C3 internal clearance, the usual choice for electric motors.
Sharing the same 105 mm bore are the 6221 (105 × 190 × 36 mm), the 6321 (105 × 225 × 49 mm) and the 6821 (105 × 130 × 13 mm). They all fit a 105 mm shaft, but each needs a different housing, so check the outside diameter and width before you order.
Why 6021 prices vary
- Genuine or copy: fakes sell far below the real price and fail early. We sell only genuine bearings.
- Brand and origin: each maker, and each country of manufacture, is priced differently.
- Version: sealed, shielded, C3, stainless and low-noise versions cost more than the open bearing.
- Quantity: bulk and repeat orders are priced lower.
So we quote today’s price for each brand rather than list one number. Ask for the 6021 price on WhatsApp.
6021 dimensions
| Bore (d) | 105 mm |
|---|---|
| Outside diameter (D) | 160 mm |
| Width (B) | 26 mm |
Dimensions are the ISO 15 standard size, the same in every brand and seal type.
6021 load and speed ratings
| Dynamic load rating (C) | 76.1 kN |
|---|---|
| Static load rating (C₀) | 65.5 kN |
| Reference speed | 8,500 r/min |
| Limiting speed | 5,300 r/min |
Figures for the open SKF 6021 from SKF’s online catalogue (checked 9 Oct 2026). Other brands publish slightly different ratings for the same size. Sealed (2RS) versions have a lower limiting speed. SKF data sheet.
Other bearings for a 105 mm shaft
Same bore, different series: a bigger bearing carries more load but needs a bigger housing.
| Bearing | Size (mm) | Dynamic load C |
|---|---|---|
| 6021 | 105 × 160 × 26 | 76.1 kN |
| 6321 | 105 × 225 × 49 | 182 kN |
On a 105 mm shaft, the 6321 carries 139% more than the 6021, in a housing 65 mm larger across.
6021 variants
Every 6021 has the same outside dimensions. What changes is how it is sealed, its internal clearance and its material:
- 6021 (open): no shields or seals. For gearboxes and machines where oil or grease reaches the bearing.
- 6021 ZZ / 2Z: metal shields on both sides, greased for life. For clean, fast-running motors and fans.
- 6021 2RS: rubber seals on both sides (DDU at NSK, LLU at NTN). Better against dust and moisture.
- 6021 C3: internal clearance greater than normal, combined with any of the above (e.g. 6021-2RS-C3). The usual choice for electric motors.
- S6021 / SS6021: stainless steel for wet or corrosive conditions, usually marked with an S or SS prefix (SKF uses W). Supplied on request.
6021 equivalents by brand
Same size, written in each maker’s own style. Tap a brand to see how it numbers its bearings.
| Brand | Open | Shields | Seals | Seals + C3 |
|---|---|---|---|---|
| SKF | 6021 |
– |
– |
– |
| FAG | – |
– |
– |
– |
| NTN | 6021 |
6021ZZ |
6021LLU |
6021LLUC3 |
| NSK | 6021 |
6021ZZ |
6021DDU |
6021DDUC3 |
| KOYO | 6021 |
6021ZZ |
6021-2RS |
6021-2RS C3 |
| HCH | 6021 |
6021ZZ |
6021-2RS |
6021-2RS C3 |
Where the 6021 is used
- Large electric motors
- Industrial pumps and compressors
- Gearboxes and reducers
- Conveyor drives
- Machine tools
- Crushers, mixers and process plant
Brands available for 6021
Buying for a factory or workshop?
- GST invoice with every order
- One quotation for your whole list
- No minimum order
- Same or next-day delivery in Mumbai; dispatch across India
Is your 6021 genuine?
Counterfeit bearings are sold in many sizes and brands, including the 6021. Check that the marking on the ring matches the box exactly, that the brand’s own suffix style is used, and be wary of prices far below the market. How to spot a fake bearing.
Updated
Questions
6021 bearing: frequently asked
What size is a 6021 bearing?
A 6021 measures 105 mm bore × 160 mm outside diameter × 26 mm width. The size is the same in every brand and seal type.
What is the SKF, FAG or NSK equivalent of 6021 2RS C3?
NSK 6021DDUC3, NTN 6021LLUC3 and KOYO 6021-2RS C3. All are the same 105 × 160 × 26 mm size with rubber seals on both sides and C3 clearance.
Can I use a 6221 instead of a 6021?
Not without changing the housing. Both have a 105 mm bore, but the 6221 is 190 mm across and 36 mm wide, against 160 × 26 mm for the 6021.
What load can a 6021 bearing carry?
SKF rates the open 6021 at a dynamic load rating (C) of 76.1 kN and a static load rating (C0) of 65.5 kN, with a limiting speed of 5,300 r/min. Other brands publish similar figures. How much load it can carry in service also depends on speed, lubrication and the life you need.
Have a part number, or just a worn-out bearing?
Send it to us. We will tell you what it is, what it costs, and how soon it can be at your door.