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| Categories | One Way Bearings |
|---|---|
| Brand Name: | SUMA or OEM |
| Model Number: | DC, DC |
| Place of Origin: | Jiangsu, China |
| MOQ: | 10 |
| Type: | DC Series |
| Precision Rating: | P0 |
| Seals Type: | non-sealed |
| Race Material: | GCr15 |
| Material: | GCr15 |
| Drag Torque: | 50-3900 Nm |
| Sprag Space: | 8.33-9.5 mm |
| Minimum Plain Width: | e (varies by model) |
| Surface Hardness: | HRC 60-62 |
| Core Hardness: | HRC 35-45 |
| Surface Roughness: | ≤22CLA |
| Maximum Taper: | 0.007 mm per 25 mm width |
| Number of Clips: | 3-11 (varies by model) |
| Inner Diameter: | 22.225-123.881 mm |
| Outer Diameter: | 38.885-142.88 mm |
| Company Info. |
| Changzhou Tianniu Transmission Equipment Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
Backstop Clutch DC Sprag Type Freewheel Cage DC

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.

Type | Drag torque | Size(mm) | Number of clips | |||||
Tkn(NM) | a | c | sprag space | e | d | b | ||
DC2222G | 50 | 22.225 | 38.885 | 8.33 | 10 | 50 | 17 | |
DC2776 | 95 | 27.762 | 44.422 | 8.33 | 13.5 | 58 | 21 | |
DC3034 | 99 | 30.34 | 47 | 8.33 | 13.5 | 62 | 23 | |
DC3175(3C) | 127 | 31.75 | 48.41 | 8.33 | 13.5 | 63 | 24 | 3 |
DC3809A | 220 | 38.092 | 54.752 | 8.33 | 16 | 71 | 29 | |
DC4127(3C) | 179 | 41.275 | 57.935 | 8.33 | 13.5 | 75 | 32 | 3 |
DC4445A | 290 | 44.45 | 61.11 | 8.33 | 16 | 79 | 34 | |
DC4972(4C) | 245 | 49.721 | 66.381 | 8.33 | 13.5 | 86 | 38 | 4 |
DC5476A | 420 | 54.765 | 71.425 | 8.33 | 16 | 92 | 42 | |
DC5476A(4C) | 420 | 54.765 | 71.425 | 8.33 | 16 | 92 | 42 | 4 |
DC5476B(4C) | 615 | 54.765 | 71.425 | 8.33 | 21 | 92 | 42 | 4 |
DC5476C(4C) | 792 | 54.765 | 71.425 | 8.33 | 25.4 | 92 | 42 | 4 |
DC5776A | 483 | 57.76 | 74.42 | 8.33 | 16 | 98 | 44 | |
DC6334B | 645 | 63.34 | 80 | 8.33 | 21 | 104 | 50 | |
DC7221(5C) | 540 | 72.217 | 88.877 | 8.33 | 13.5 | 115 | 56 | 5 |
DC7221B | 1023 | 72.217 | 88.877 | 8.33 | 21 | 115 | 56 | |
DC7221B(5C) | 1023 | 72.217 | 88.877 | 8.33 | 21 | 115 | 56 | 5 |
DC7969C(5C) | 1630 | 79.698 | 96.358 | 8.33 | 25.4 | 124 | 61 | 5 |
DC8334C | 1645 | 83.34 | 100 | 8.33 | 25.4 | 132 | 65 | |
DC8729A | 1000 | 87.29 | 103.96 | 8.33 | 16 | 134 | 67 | |
DC10323A(3C) * | 1290 | 103.231 ** | 119.891 | 8.33 | 16 | 155 | 80 | 3 |
DC12334C * | 3840 | 123.34 ** | 140 | 8.33 | 25.4 | 184 | 96 | |
DC12388C(11C) | 3900 | 123.881 | 142.88 | 9.5 | 25.4 | 196 | 96 | 11 |
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Changzhou Suma Precision Machinery Co., Ltd(Changzhou Tianniu Clutch Factory)is a manufacturer specialized in
Producing Various cam clutch, one way bearing, one way clutch,
backstop clutch, overrunning clutch and other bearings with high
technology. 
We are following "Best Quality, Best Price, Fast Delivery, Best Serves" to make all of our old and new customers satisfied.
Our Advantages
1. Advanced producing equipment.
2. Strict requirement for the raw material
3. Complete&perfect process flow
4. Good quality of each batch of the product
5. Different grades of price for different quality


Q: Why do we choose your company?
A: We always insist quality first. We have our bearing factory, therefore we have advantage in quality control and price of one way clutch bearing.
Q:What is the delivery time?
A: Most of the bearing we have stock. For small quantity, we will arrange delivery within 15 days.
Q: What is your payment term?
A: Our payment term include L/C, T/T, Western Union, Paypal etc.
Q: Can you send bearing samples first?
A: Yes, we can send bearing samples of one way clutch bearing to check quality first.
If you have any needs, pls contact me at any time!
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