6308 Bearings Specifications:
| Product Name: | Deep groove ball bearings | Model: | 6308 bearings |
| Certification: | ISO9001-2015 | Country of origin: | Hebei province,China |
| Material: | Chrome steel | Structure: | Deep Groove |
| Type: | Ball Bearings | Bore Size:40 | mm |
| Model Number: | 6308 open,:6308ZZ,:6308 2rs | Precision Rating: | ABEC 1,ABEC 3,ABEC 5, ABEC 7 |
| Seals Type: | ZZ 2RS OPEN | Number of Row: | Single Row |
| Cage: | Steel Cage | Lubrication: | Oil or grease |
| Service: | OEM Service | Package: | Colorful box,White box,and plastic tube |
| Brand: | NSAR,3D,OWO,CBQ,NASA | Size: | 40X90X23MM |
| Products series: | Miniature ball bearings,such as 6308zz 6000 series ,such as 6004 bearing 6200 series,such as 6205 bearing 6300 series,such as 6305 bearing 6900 series,such as 6903 bearing |
Sample: | Available |
| (Kn)Basic LoadRating | (Kn)Basic LoadRating | (r/min)LimitRotational Speed | (r/min)LimitRotational Speed |
| Dynamic Cr | Static Cor | Grease Lubrication |
Oil Lubrication |
| 4.75 | 24.01 | 7000 | 9000 |
| Weight | |||
| 0.6394 |
The contrast of gcr15 of each country:
| Country | China | ISO | USA |
| Bearing Steel No | GCr15 | 683/XVIl | (AISI)52100 |
| Country | Germany | Japan | Sweden |
| Bearing Steel No | (Din)100Cr6 | (Jis)SUJ2 | SKF3 |
The chemical composition of GCr15 is listed in the below tables:
Chemical Composition(%)
| Steel No. | C | Si | Mn |
| GCr15 | 0.95-105 | 0.15-035 | 025-045 |
| Steel No. | P | S | Cr |
| GCr15 | <0.025 | ≤0.025 1 |
1.40-1.65 |
| Steel No. | Cu | Ni | |
| GCr15 | <0.25 | <0.30 |
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