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DC 7221B Sprag Type Freewheel Cage One Way Bearing with Copper Ring

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Shaanxi Fortune Industries Co.ltd

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DC 7221B Sprag Type Freewheel Cage One Way Bearing with Copper Ring

Brand Name : SFT

Model Number : DC7221B

Place of Origin : China

MOQ : negotiable

Price : negotiable

Payment Terms : L/C, T/T, Western Union, MoneyGram

Supply Ability : 50000PCS/MONTH

Delivery Time : 20-45DAYS

Packaging Details : carton,pallet

Height (mm) : 21

Precision Rating : P6

Applicable Industries : Manufacturing Plant, Machinery Repair Shops, Printing Shops, Construction works , Energy & Mining, Other

Drag Torque (N.m) : 1023

WEIGHT : 0.45 kg

Seals Type : non-sealed

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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.

DC 7221B Sprag Type Freewheel Cage One Way Bearing with Copper Ring

Type	Drag torque	Size(mm)						Number of clips
Type	Tkn(NM)	a	c	sprag space	e	d	b	Number of clips
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

Applications

Industrial Automation: Control and monitoring of machinery and equipment.
Embedded Systems: Flexible I/O management for custom applications.
IoT Devices: Reliable GPIO and interrupt handling for connected devices.
Diagnostic Tools: BIOS event logging for system diagnostics and recovery.

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