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| Categories | One Way Clutch Bearing |
|---|---|
| Brand Name: | SUMA or OEM |
| Model Number: | DC7221(5C) |
| Place of Origin: | Jiangsu, China |
| MOQ: | 2 |
| Price: | US$7-8 |
| Type: | sprag |
| Precision Rating: | P0 |
| Seals Type: | non-sealed |
| Height: | 13.5 mm |
| Drag Torque: | 540 N.m |
| Race Material: | GCr15 |
| Overrunning Speed: | 2600 min-1 |
| Inner Diameter: | 72.217 mm |
| Outer Diameter: | 88.877 mm |
| Sprag Space: | 8.33 mm |
| Minimum Width: | 13.5 mm |
| Minimum Shaft Diameter: | 115 mm |
| Maximum Housing Diameter: | 56 mm |
| Number of Clips: | 5 |
| Number of Sprags: | 30 |
| Weight: | 0.210 kg |
| Company Info. |
| Changzhou Suma Precision Machinery Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
DC 7221(5C) One Way Clutch Bearing with sprag type

Feature
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 transmis-sion
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.

Size | Torque | Overrunning speeds | Øa + 0,008 - 0,005 | Øc ± 0,013 | Sprag space | emin | Ødmin | Øbmax | Number of clips | Number of sprags | Weight | |
TKN1[Nm] | nimax2 [min-1] | Namax2 [min-1] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [kg] | |||
DC2222G | 63 | 8600 | 4300 | 22.225 | 38.885 | 8.33 | 10.0 | 50 | 15 | - | 12 | 0.030 |
DC2776 | 119 | 6900 | 3400 | 27.762 | 44.422 | 8.33 | 13.5 | 58 | 18 | - | 14 | 0.055 |
DC3034 | 124 | 6300 | 3100 | 30.340 | 47.000 | 8.33 | 13.5 | 62 | 20 | - | 14 | 0.060 |
DC3175(3C) | 159 | 6000 | 3000 | 31.750 | 48.410 | 8.33 | 13.5 | 63 | 24 | 3 | 16 | 0.060 |
DC3809A | 275 | 5000 | 2500 | 38.092 | 54.752 | 8.33 | 16 | 71 | 29 | - | 18 | 0.085 |
DC4127(3C) | 224 | 4600 | 2300 | 41.275 | 57.935 | 8.33 | 13.5 | 75 | 32 | 3 | 18 | 0.090 |
DC4445A | 363 | 4300 | 2100 | 44.450 | 61.11 | 8.33 | 16 | 79 | 34 | - | 20 | 0.095 |
DC4972(4C) | 306 | 3800 | 1900 | 49.721 | 66.381 | 8.33 | 13.5 | 86 | 38 | 4 | 22 | 0.100 |
DC5476A | 525 | 3500 | 1700 | 54.765 | 71.425 | 8.33 | 16 | 92 | 42 | - | 24 | 0.110 |
DC5476A(4C) | 525 | 3500 | 1700 | 54.765 | 71.425 | 8.33 | 16 | 92 | 42 | 4 | 24 | 0.130 |
DC5476B(4C) | 769 | 3500 | 1700 | 54.765 | 71.425 | 8.33 | 21 | 92 | 42 | 4 | 24 | 0.180 |
DC5476C(4C) | 990 | 3500 | 1700 | 54.765 | 71.425 | 8.33 | 25.4 | 92 | 42 | 4 | 24 | 0.200 |
DC5776A | 604 | 3300 | 1600 | 57.760 | 74.420 | 8.33 | 16 | 98 | 44 | - | 26 | 0.110 |
DC6334B | 806 | 3000 | 1500 | 63.340 | 80.000 | 8.33 | 21 | 104 | 50 | - | 26 | 0.175 |
DC7221(5C) | 675 | 2600 | 1300 | 72.217 | 88.877 | 8.33 | 13.5 | 115 | 56 | 5 | 30 | 0.140 |
DC7221B | 1279 | 2600 | 1300 | 72.217 | 88.877 | 8.33 | 21 | 115 | 56 | - | 30 | 0.185 |
DC7221B(5C) | 1279 | 2600 | 1300 | 72.217 | 88.877 | 8.33 | 21 | 115 | 56 | 5 | 30 | 0.210 |
DC7969C(5C) | 2038 | 2400 | 1200 | 79.698 | 96.358 | 8.33 | 25.4 | 124 | 61 | 5 | 34 | 0.280 |
DC8334C | 2055 | 2300 | 1100 | 83.340 | 100.00 | 8.33 | 25.4 | 132 | 65 | - | 34 | 0.270 |
DC8729A | 1250 | 2200 | 1100 | 87.290 | 103.96 | 8.33 | 16 | 134 | 67 | - | 34 | 0.165 |
DC10323A(3C)* | 1612 | 1800 | 900 | 103.231** | 119.891 | 8.33 | 16 | 155 | 80 | 3 | 40 | 0.205 |
DC12334C* | 4800 | 1500 | 750 | 123.34** | 140.00 | 8.33 | 25.4 | 184 | 96 | - | 50 | 0.400 |
DC12388C(11C) | 4875 | 1500 | 750 | 123.881 | 142.88 | 9.5 | 25.4 | 196 | 96 | 11 | 44 | 0.400 |
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Q: How do you pack the goods?
Each in small white box or Roll Pack or Tube pack - in 19x18x9CM carton box - 29*28*19CM carton box - Wooden box / Wooden pallet
Q: Can i get the samples from you?
A: It is highly encouraged to ask for the samples for quality check.
Q: Can you promise to deliver the goods in time?
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