DC 4127(3C) One-Way Clutches Bearings 27x75×13.5 mm

Model: DC 4127(3C)
Place of Origin: Zhejiang,China (Mainland)
Brand Name: RNB OR NATURAL
Number of row: Three rows
Type: Roller bearing
Material of race: ST14
Material of Needle roller: Chrome steel
Precision: P6

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Product Description

Payment & Shipping Terms Supply Capacity
Trade Term:FOBProduction Capacity:50000 Piece/Pieces per...
Payment Terms:L/C, WUPacking:RNB OR NATURAL
Min. Order:2000 Piece/PiecesDelivery Date:30days
Means of Transport:Ocean, Air

One-Way clutches  DC 4127(3C)

                                                                          
Demension:27×75×13.5 mm,    Weight: 90g.


SHAPE LOCATION TOLERANCE SHOULD BE TO CURRENT STANDARD;


Outer ring fordrawncup needle roller bearings(DC type) is made of cold rolled steel strip accurately 

formed.Structure of DC needle roller bearings features space saving and higher capacity.They are suitable 

for applications with limited space and housing not hard enough to act as raceway. No requirement on axial 

location when the DC needle roller bearing is pressed into the housing.

In most applications inner ring is not necessary for DC needle roller bearings unless shaft raceway is 

impractical,standard inner rings for DC to compare with open end DC needle roller bearings, close end DC 

needle roller bearings are good for sealing at the close end of bearings,operating temperature range for 

bearings grease lubricatedare 20℃ to +120℃.

One-Way clutches  DC 4127(3C)



1. The drawn cup needle roller clutch is the overriding clutch (one-way clutch), composed of the outer ring

punched with the high-quality steel sheet, plastic retainer, spring and needles, used for transferring one-

way torque.The drawn cup needle roller clutch has not the load carrying feature by itself. However it can

play the action in combination with Model HK and BK drawn cup needle roller bearing.The drawn cup needle 

roller clutch is the block bearing either withstanding the radial load or transferring torque.

2. Inspection the enveloping circle diameter

The dimensional accuracy of drawn cup needle roller bearings cannot be measured before fitting without a 

ring gauge as the thin-walled outer ring can be out of round due to the manufacturing process. The bearings

obtain the accuracy required for their correct function only when pressed into ahousing bore which must be

manufactured with the recommended tolerance limits.

The enveloping circle diameter can then be checked as follows:

a. Press the bearing into a steel ring gauge(wall thickness≥20mm).The bore dimension of the ring

 gauge must correspond to that given.

b. Measure the enveloping circle diameter with cylindrical go and no-go gauge plugs.

3. Type DC is a sprag type freewheel cage without inner or outer races. It must be installed in a design 

providing races, bearing support for axial and radial loads, lubrication and sealing. The DC type version-N

accepts all types of lubricants currently used in the power transmission equipement.
The sprag space tolerance must not be exceeded. Inner and outer races must both have a minimum plain

width "e", without any recess, to ensure the freewheel functions correctly as shown on following pages.

Alternatively, races can be made in case hardened steel shafts, or housings, to the specification below.

Surface hardness of the finished part should be HRC 60 to 62, for a depth of 0,6 mm minimum.

Core hardness to be HRC35 to 45. Surface roughness not to exceed 22CLA. Maximum taper between races:

0,007 mm for 25 mm width.

 

                      


RNB
Overrunning speedsBoundary dimensions  (mm)Numberclips ofNumbersprags ofWeight
Part  No.TKN1)nimax2)namax3)Øa+0.008Øc± 0.013Sprag spaceeminØdminØbmax


  -0.005
[Nm][min -1][min -1][mm][mm][mm][mm][mm][mm]

[kg]
DC2222G-N63 8600 4300 22.22538.8858.33±0.0751050 15 12 0.03
DC2776-N119 6900 3400 27.76244.4228.33±0.07513.558 18 14 0.055
DC3034-N124 6300 3100 30.34478.33±0.07513.562 20 14 0.06
DC3175(3C)-N159 6000 3000 31.7548.418.33±0.07513.563 21 16 0.06
DC3809A-N275 5000 2500 38.09254.7528.33±0.0751671 25 18 0.085
DC4127(3C)-N224 4600 2300 41.27557.9358.33±0.07513.575 27 18 0.09
DC4445A-N363 4300 2100 44.4561.118.33±0.11679 29 20 0.095
DC4972(4C)-N306 3800 1900 49.72166.3818.33±0.113.586 33 22 0.1
DC5476A-N525 3500 1700 54.76571.4258.33±0.11692 36 24 0.11
DC5476A(4C)-N525 3500 1700 54.76571.4258.33±0.11692 36 24 0.13
DC5476B(4C)-N769 3500 1700 54.76571.4258.33±0.12192 36 24 0.18
DC5476C(4C)-N990 3500 1700 54.76571.4258.33±0.125.492 36 24 0.2
DC5776A-N604 3300 1600 57.7674.428.33±0.11698 38 26 0.11
DC6334B-N806 3000 1500 63.34808.33±0.121104 42 26 0.175
DC7221(5C)-N675 2600 1300 72.21788.8778.33±0.113.5115 48 30 0.14
DC7221B-N1279 2600 1300 72.21788.8778.33±0.121115 48 30 0.185
DC7221B(5C)-N1279 2600 1300 72.21788.8778.33±0.121115 48 30 0.21
DC7969C(5C)-N2038 2400 1200 79.69896.3588.33±0.125.4124 53 34 0.28
DC8334C-N2055 2300 1100 83.34100.000 8.33±0.125.4132 55 34 0.27
DC8729A-N1250 2200 1100 87.29103.968.33±0.116134 58 34 0.165
DC10323A(5C)*-N1612 1800 900 103.231**119.8918.33±0.116155 68 40 0.205
DC12334C*-N4800 1500 750 123.340**140.000 8.33±0.125.4184 80 50 0.4
DC12388C(11C)4875 1500 750 123.881142.889.50±0.125.4186 80 11 44 0.4

                

                       

      

One-Way clutches  DC 4127(3C)



Category: The Drawn Cup Needle Roller Clutch

Related Category: The Solid Collar Needle Roller Bearings  Thrust Needle Roller Bearing  Curve Roller Bearings  The Needle Roller And Cage Assembly  Without Cage Needle roller Bearings