DC 8729A One-Way Hold Back Bearing with Sprag Type

• Rolling Body: Ball Bearings
• The Number of Rows: Single
• Outer Dimension: Extra Large (440mm)
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Radial Bearing
• Model NO.: DC 8729A
• Separated: Unseparated
• Model: DC 8729A
• Type: Sprag Type
• Drag Torque (N.M): 1000
• Name: DC 8729A One-Way Hold Back Bearing
• Seals Type: Non-Sealed
• After-Sales Service: Availiable
• OEM: Accept
• Stock: Rich
• Port: Shanghai;Ningbo
• Delivery: 10-15days
• Transport Package: Single Box or as Your Requirements
• Specification: P6
• Trademark: SUMA or OEM
• Origin: Changzhou, Jiangsu, China
• HS Code: 84826000
• Production Capacity: 10000PCS/Month

Product Description

DC 8729A One-Way Hold Back Bearing with Sprag Type
 

Data Sheet

Item	DC 8729A
Bore Size	87.29 mm
Outer Diameter	103.96 mm
Norminal Torque	1250 Nm
Weight	0.165 kg
Overrunning Speed(outer race)	1100 min^-1
Overrunning Speed (inner race)	2200 min^-1
Material	GCr15

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.

Product Display





Different Sizes For Your Reference

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

Company Information
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

FAQ:
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!