Internal Freewheels Zz 2RS One Way Clutch with Sprags

• Certification: ISO9001:2008
• Style: With Outer Ring
• Rows Number: Single
• Load Direction: Radial Bearing
• Material: Gcr15
• Model: Zz12 2RS
• Model NO.: ZZ12 2RS
• Type: Sprag
• Outer Diameter: 32mm
• Inner Diameter: 12mm
• Weight: 0.05kg
• Width: 14mm
• OEM: Accept
• Delivery: 10-15days
• Transport Package: Single Box or as Your Requirements
• Specification: P6
• Trademark: SUMA or OEM
• Origin: Changzhou, Jiangsu, China
• HS Code: 84836000
• Production Capacity: 10000PCS/Month

Product Description

Internal Freewheels ZZ 2RS
for press fit on the outer ring
with sprags, bearing support and sealing
 
Features
Internal Freewheels ZZ 2RS are sprag freewheels with bearing support and ball bearing properties. The freewheels are supplied grease-filled for normal operating conditions.
The freewheel is built into the customer housing. This makes compact, space-saving
fitting solutions possible. The freewheels ZZ 2RS are used as:
 Backstops
 Overrunning Clutches
 Indexing Freewheels
Nominal torques up to 325 Nm. The torque is transmitted on the inner ring and/or on the
outer ring by press fit or keyway connection. Bores up to 40 mm.
 

Freewheel Size	Nominal torque		Maximum speed min-1	bearing support dynamic C	Load rating of		Bore d		B		D		K		Weight
	MN			N	static		mm		mm		mm		mm		kg
	Nm				C0
					N
ZZ 8 2RS*		2,5	15 000	3 300		860		8		9		22		27	0,02
ZZ 12 2RS		9,3	10 000	6 100		2 800		12		14		32		39	0,05
ZZ 15 2RS		17,0	8 400	7 400		3 400		15		16		35		42	0,07
ZZ 17 2RS		30,0	7 350	7 900		3 800		17		17		40		51	0,09
ZZ 20 2RS		50,0	6 000	9 400		4 500		20		19		47		58	0,15
ZZ 25 2RS		85,0	5 200	10 700		5 500		25		20		52		63	0,18
ZZ 30 2RS		138,0	4 200	11 700		6 500		30		21		62		73	0,27
ZZ 35 2RS		175,0	3 600	12 600		7 300		35		22		72		85	0,40
ZZ 40 2RS		325,0	3 000	15 500		12 300		40		27		80		94	0,60

 
Mounting
The torque is transmitted on the inner and outer ring by press fit. In order to transmit the torques specified in the table, the outer ring must be accommodated in a housing with an
external diameter K. The housing is made of steel or grey cast iron in minimum quality GG-
20. When using other housing materials or smaller external diameters, we urge you to contact
us regarding the transmissible torque. The tolerance of the housing bore D must be ISO N6 and the tolerance of the shaft must be ISO n6. The permissible operating temperature of the
freewheel is +5°C to +60°C. Please contact us if the temperature is different to the given values.
 
Lubrication
The freewheels are supplied grease-filled and
with 2 RS seals.
 
Example for ordering
Freewheel size ZZ 17 2RS, standard type:
? ZZ 17 2RS