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68 Series deep groove ball bearings

Ball Bearing Sizes, 68 Series deep groove ball bearings

Single Row Radial Ball Bearing, Made of Chrome Steel, Pre-lubricated with grease

The suffix “2RS” signifies the bearing is sealed, with rubber, on both sides. The suffix “ZZ” signifies the bearing is shielded, with metal, on both sides. Generally speaking, shielded bearings are more practical in cleaner, high-speed applications, while the sealed bearings are more practical for applications of slower speeds and dirtier environments.


Common applications for radial ball bearings include food processing, food and beverage industry, photo processing, appliances, furniture industry, marine applications, chemical and electroplating industries, paint and dye, textile industries, automotive, motorcycles, pumps, fans, water treatment, pharmaceutical industry and many other industrial applications.


Price: US $0.5-5 / Piece | 200 Piece/Pieces (Min. Order)


  • Product Details
Grooved raceways on inner and outer rings sustain moderate axial loads in both directions in addition to radial loads. Balls separated by steel cages permit high-speed operation. Constructed from high-quality SAE-52100 chromium bearing steel. Available open, sealed (2RS) or shielded (ZZ), providing high speed operation in a wide variety of applications. Some are available with double seals (2RSL). ZZ, 2RS and 2RSL are available pre-lubricated with upper premium polyrex grease. 
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Basic Bearing No. Bore d
inch
Outer Diameter
D
inch
Width
W
Radius
r
min
inch
Basic Load Rating KN Ball Complement Max Runout Speed Weight kg
open
inch
Shielded Sealed
inch
Dynamic C Static C0 No. Size mm Grease r/min Oil r/min
685 5 11 3 5 0.15 0.715 0.282 8 1.588 35000 45000 0.0011
686 6 13 3.5 5 0.15 1.08 0.44 8 2 33000 42000 0.0019
687 7 14 3.5 5 0.15 1.17 0.51 9 2 31000 40000 0.0021
688 8 16 4 5 0.2 1.26 0.585 9 2.381 29000 38000 0.0031
689 9 17 4 5 0.2 1.72 0.82 11 2 28000 36000 0.0032
6800 10 19 5 5 0.3 1.83 0.925 9 2.381 26000 34000 0.005
6808 40 52 7 7 0.3 5.1 4.4 9000 13000 0.033
6807 35 47 7 7 0.3 4.9 4.05 11000 15000 0.029
6805 25 37 7 7 0.3 4.3 2.95 15 3.5 15000 19000 0.022
6806 30 42 7 7 0.3 4.7 3.65 19 3.175 13000 17000 0.026
6804 20 32 7 7 0.3 4 2.47 13 3.5 17000 22000 0.019
6803 17 26 5 5 0.3 2.81 1.72 15 2.381 19000 26000 0.008
6802 15 24 5 5 0.3 2.08 1.26 14 2.381 20000 28000 0.007
6801 12 21 5 5 0.3 1.92 1.04 12 2.381 22000 30000 0.006
6809 45 58 7 7 0.3 6.4 5.65 7000 11000 0.04
6810 50 65 7 7 0.3 6.6 6.1 5000 9000 0.052

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