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Product Details:
687 ceramic bearings 687-2rs full ceramic bearings 7x14x5 mm
Product information:
Structure:Deep Groove
Type:Ball, ball bearing
Brand Name:NPG
Internal diameter:7mm
External diameter:14mm
Width:5mm
Size:7x14x5mm
Weight:0.008kg
Material:Chrome steel/GCr15/Stainless steel/ceramic/ZrO2
Sealing type: You can choose Metal seal Or Rubber seal
Is customized: Yes (Drawings required)
Related accessories: Oil seal,Circlip and housings etc.
Wholesale and freight: To provide you with accurate solutions
Tips: Please contact us for details of the required products.
Product features：
The ceramic rolling bearing is suitable to work in harsh condition of corrosive fluids, because ceramic is almost not afraid of corrosion.
Due to the lower density of ceramic rolling balls and much lighter weight than steel, the centrifugal effect to external race can be reduced by 40% when rotating, thus greatly extend the service life.
The ceramic is less affected by thermal expansion than steel, therefore, when bearing clearance is certain, it can work in a environment where temperature changes more severely.
The elastic modulus of ceramic is higher than steel, so ceramic is not easy to deform under stress, which can improve work speed, and achieve a higher precision.
Widely used for medical apparatus and instruments, cryogenic engineering, optical instrument, high-speed machines, high-speed electric machinery, printing machinery, food processing machinery, aviation, spaceflight, navigation, petroleum, chemical industry, automobile, electronics, metallurgy, electric power, textile, pumps.
6800 series | ||||||||||||
Type | Boundary dimensions(mm) | Basic load ratings(N) | Limiting speeds(rpm ) | Weight(g) | ||||||||
Inner Diameter | Outer Diameter | Width | dyn. | stat. | Grease | Oil | RS | |||||
Open | Close | |||||||||||
Cr (N) | Cor (N) | Open Z L | ||||||||||
684 | 4 | 9 | 2.5 | 4 | 539 | 189 | 47000 | 55000 | / | 0.67 | ||
685 | 5 | 11 | 3 | 5 | 775 | 317 | 41000 | 49000 | / | 1.1 | ||
686 | 6 | 13 | 3.5 | 5 | 1080 | 438 | 37000 | 44000 | / | 1.9 | ||
687 | 7 | 14 | 3.5 | 5 | 1170 | 511 | 35000 | 42000 | / | 2.1 | ||
688 | 8 | 16 | 4 | 5 | 1600 | 714 | 33000 | 39000 | / | 3.1 | ||
689 | 9 | 17 | 4 | 5 | 1600 | 734 | 31000 | 37000 | / | 3.2 | ||
6800 | 10 | 19 | 5 | 5 | 1590 | 760 | 30000 | 36000 | 22000 | 5 | ||
6800 | 10 | 19 | 7 | 1590 | 760 | 29000 | 34000 | 20000 | 7 | |||
6801 | 12 | 21 | 5 | 5 | 1900 | 1000 | 25000 | 30000 | 18000 | 6 | ||
6802 | 15 | 24 | 5 | 5 | 1960 | 1260 | 24000 | 29000 | 15000 | 7 | ||
6803 | 17 | 26 | 5 | 5 | 2130 | 1360 | 22000 | 26000 | 13000 | 8 | ||
6804 | 20 | 32 | 7 | 7 | 3470 | 2240 | 19000 | 23000 | 11000 | 19 | ||
6805 | 25 | 37 | 7 | 7 | 3660 | 2640 | 16000 | 19000 | 8000 | 22 | ||
6806 | 30 | 42 | 7 | 7 | 4020 | 3120 | 13000 | 16000 | 8600 | 26 | ||
6807 | 35 | 47 | 7 | 7 | 4310 | 3610 | 11000 | 14000 | 7400 | 29 | ||
6808 | 40 | 52 | 7 | 7 | 4420 | 3890 | 10000 | 12000 | 6500 | 33 | ||
6809 | 45 | 58 | 7 | 7 | 4590 | 4320 | 9000 | 10000 | 5700 | 40 | ||
6810 | 50 | 65 | 7 | 7 | 6600 | 6080 | 9400 | 9000 | 5000 | 52 | ||
Packaging Detail: | 1.Carton or tubo. 2.Wrapped by oil paper and water-proof belt 3.Wooden pallets or wooden cases of free fumigation 4.According to customer's requirement. | |||||||||||
Delivery Detail: | 2-20 days | |||||||||||
Specifications
Sports equipment bearing 688 2rs Si3N4 small sliding doors full ceramic bearing 688
1.Material: Chrome steel,stainless steel ,ceramic
2.Clearance: C2 C0 C3 C4 C5
3.Tolerance: ABEC1(P0) ABEC3(P6)