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K75x81x20 Radial Needle Roller And Cage Assemblies

K75x81x20 Radial Needle Roller And Cage Assemblies

Min. Order:
1 Piece
Payment term:
TT ,PAYPAL ,Western Union
Delivery time:
according your quantity
Technical Parameters:
Product Designations:
K75x81x20
Structure:
Radial Needle Roller And Cage Assemblies
Inside Diameter:
75 mm
Outside Diameter:
81 mm
Thickness:
20 mm
Weight:
0.72 KG
Brand:
Neutral or OEM
Precision Rating:
P0 P6 P5 P4 P2
Bearing Material:
bearing steel Gcr15
K75x81x20 Radial Needle Roller And Cage Assemblies

 Item No:K75x81x20 Radial Needle Roller And Cage Assemblies

As for Model K, K...D radial needle and retainer assembly, this kind of bearing only has a group of radial needle and retainer assembly. With small outside diameter size, it is suitable for the parts, where the radial sizes are specially limited, used for bearing the radial load. Model K...ZW, K...ZWD radial needle and retainer assembly is the double row radial needle and retainer assembly.


As for this kind of bearing, since it has not collar, the surface of journal and the surface of hole at the housing are directly acted as rolling surface with surface hardness HRC 60 and surface roughness Ra no more than 0.63µm.


In order to satisfy the requirement of main machine, this kind of bearing can be made in split bearing, convenient for mounting. Model K...D represents as the single row split bearing and Model K...ZWD represents as double row split bearing.

 

(1-1) K single-row radial needle roller and cage assembly

(1-2) K...ZW double-row radial needle roller and cage assembly

(1-3) K... D partial single-row radial needle roller and cage assembly

(1-4) K...ZWD double-row radial needle roller and cage assembly

 

Shaft 
Diameter
Bearing Designation Mass 
Approx
Boundary Dimensions Basic Load Rating Limiting Speed
Current Code Original Code Fw D C Dynamic Static Oil
mm g mm N rpm
60 K60x65x20 49241/60 50.5 60 65 20 29000 71500 6000
K60x65x30 69241/60 71.2 60 65 30 42000 115500 6000
K60x68x20 19243/60 79 60 68 20 43000 84500 5500
K60x68x23   94 60 68 23 49000 100500 5500
K60x68x25 29243/60 97 60 68 25 52500 110500 5500
K60x68x27   98 60 68 27 59000 120500 6000
K60x75x42   240 60 75 42 11300 19200 5500
K60x66x33ZW   104 60 66 33 45500 111500 6000
K60x66x40ZW   116 60 66 40 57500 150500 5500
K60x68x30ZW   136 60 68 30 44000 87500 5500
K60x68x34ZW   140 60 68 34 47500 95500 5500
62 K62x70x40ZW   147.5 62 70 40 65500 145500 5500
63 K63x70x21   75 63 70 21 45000 100500 5500
64 K47x70x16   53 64 70 16 27500 59500 5500
65 K65x70x20 49241/65 49 65 70 20 30000 76500 5500
K65x70x30   83 65 70 30 43500 93500 5500
K65x73x23   100 65 73 23 45500 93500 5000
K65x73x30 39243/65 126 65 73 30 56500 122500 5000
68 K68x74x20 49241/68 65 68 74 20 35000 83500 5000
K68x74x30 69241/68 97 68 74 30 46000 117500 5000
K68x74x35 ZW 79241/68 116 68 74 35 48000 124500 5000
K68x75x20   120 68 75 32 53500 127500 4500
70 K70x76x20 49241/70 70 70 76 20 35500 85500 4500
K70x76x30 69241/70 100 70 76 30 51500 138500 4500
K70x78x25 29243/70 115 70 78 25 51500 111500 4500
K70x78x30 39243/70 136 70 78 30 59500 134500 4500
K70x80x30 29244/70 150 70 80 30 72500 147500 4500
K70x78x46 ZW   230 70 78 46 77500 18800 4500
72 K72x80x20 19243/72 94 72 80 20 41000 84500 4500
73 K73x79x20   69 73 79 20 36500 99500 4500
75 K75x81x20 49241/75 72 75 81 20 37000 93500 4500
K75x81x30 69241/75 106 75 81 30 51500 142000 4500
K75x83x23   113 75 83 23 49500 108000 4000
K75x83x30 39243/75 147 75 83 30 91500 142000 4000
K75x83x35 ZW 49243/75 165 75 83 35 62500 146500 4000
K75x83x40 ZW 59243/75 190 75 83 40 72500 176500 4000
80 K80x86x20 49241/80 76 80 86 20 38000 97500 4000
K80x86x30 69241/80 114 80 86 30 55500 158500 4000
K80x88x30 39243/80 141 80 88 30 71500 178500 4000
K80x88x40 ZW 59243/80 204 80 88 40 75500 191500 4000
K80x88x46 ZW 69243/80 235 80 88 46 87500 23000 4000
85 K85x92x20 29241/85 96 85 92 20 44000 107500 3500

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