Part number · Deep groove ball bearing
6315 Bearing – Size, Stock & Today’s Price
6315: a 75 × 160 × 37 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)
- 75 mm
- Outside diameter (D)
- 160 mm
- Width (B)
- 37 mm
- Dynamic load rating (C)
- 119 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 6315 is a medium-series deep groove ball bearing with a 75 mm bore, a 160 mm outside diameter and a width of 37 mm. The 63 series is the heavy-duty choice for a given shaft: larger balls, a bigger outside diameter and more width than the 62, for higher loads and shock.
Its last two digits, 15, multiplied by 5 give the 75 mm bore. A full designation such as 6315-2RS-C3 means a 6315 with rubber seals on both sides and C3 internal clearance, the usual choice for electric motors.
Sharing the same 75 mm bore are the 6015 (75 × 115 × 20 mm), the 6215 (75 × 130 × 25 mm), the 6815 (75 × 95 × 10 mm) and the 6915 (75 × 105 × 16 mm). They all fit a 75 mm shaft, but each needs a different housing, so check the outside diameter and width before you order.
Why 6315 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 6315 price on WhatsApp.
6315 dimensions
| Bore (d) | 75 mm |
|---|---|
| Outside diameter (D) | 160 mm |
| Width (B) | 37 mm |
Dimensions are the ISO 15 standard size, the same in every brand and seal type.
6315 load and speed ratings
| Dynamic load rating (C) | 119 kN |
|---|---|
| Static load rating (C₀) | 76.5 kN |
| Reference speed | 9,000 r/min |
| Limiting speed | 5,600 r/min |
Figures for the open SKF 6315 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 75 mm shaft
Same bore, different series: a bigger bearing carries more load but needs a bigger housing.
| Bearing | Size (mm) | Dynamic load C |
|---|---|---|
| 6015 | 75 × 115 × 20 | 41.6 kN |
| 6215 | 75 × 130 × 25 | 68.9 kN |
| 6315 | 75 × 160 × 37 | 119 kN |
On a 75 mm shaft, the 6315 carries 73% more load than the slimmer 6215.
6315 variants
Every 6315 has the same outside dimensions. What changes is how it is sealed, its internal clearance and its material:
- 6315 (open): no shields or seals. For gearboxes and machines where oil or grease reaches the bearing.
- 6315 ZZ / 2Z: metal shields on both sides, greased for life. For clean, fast-running motors and fans.
- 6315 2RS: rubber seals on both sides (DDU at NSK, LLU at NTN). Better against dust and moisture.
- 6315 C3: internal clearance greater than normal, combined with any of the above (e.g. 6315-2RS-C3). The usual choice for electric motors.
- S6315 / SS6315: stainless steel for wet or corrosive conditions, usually marked with an S or SS prefix (SKF uses W). Supplied on request.
6315 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 | 6315 |
6315-2Z |
6315-2RS1 |
6315-2RS1/C3 |
| FAG | 6315 |
– |
– |
– |
| NTN | 6315 |
6315ZZ |
6315LLU |
6315LLUC3 |
| NSK | 6315 |
6315ZZ |
6315DDU |
6315DDUC3 |
| KOYO | 6315 |
6315ZZ |
6315-2RS |
6315-2RS C3 |
| HCH | 6315 |
6315ZZ |
6315-2RS |
6315-2RS C3 |
Where the 6315 is used
- Large electric motors
- Industrial pumps and compressors
- Gearboxes and reducers
- Conveyor drives
- Machine tools
- Crushers, mixers and process plant
Brands available for 6315
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 6315 genuine?
Counterfeit bearings are sold in many sizes and brands, including the 6315. 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
6315 bearing: frequently asked
What size is a 6315 bearing?
A 6315 measures 75 mm bore × 160 mm outside diameter × 37 mm width. The size is the same in every brand and seal type.
What is the SKF, FAG or NSK equivalent of 6315 2RS C3?
SKF writes it 6315-2RS1/C3 and NSK 6315DDUC3, NTN 6315LLUC3 and KOYO 6315-2RS C3. All are the same 75 × 160 × 37 mm size with rubber seals on both sides and C3 clearance.
Can I use a 6215 instead of a 6315?
Not without changing the housing. Both have a 75 mm bore, but the 6215 is 130 mm across and 25 mm wide, against 160 × 37 mm for the 6315.
What load can a 6315 bearing carry?
SKF rates the open 6315 at a dynamic load rating (C) of 119 kN and a static load rating (C0) of 76.5 kN, with a limiting speed of 5,600 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?
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