Gold Member Since 2014
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Changzhou Suma Precision Machinery Co., Ltd.

One Way Bearing, Roller Bearing, Backstop manufacturer / supplier in China, offering Internal Freewheels Fn for Keyway Connection on The Outer Ring, Asnu20 Roller Type Freewheel Overrunning Clutch, 200 Series Backstop One Way Clutch and so on.

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Supplier Homepage Product one way bearing (freewheel bearing) Internal Freewheels Fn for Keyway Connection on The Outer Ring

Internal Freewheels Fn for Keyway Connection on The Outer Ring

FOB Price: US $120 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $120/ Piece
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Port: Shanghai, China
Production Capacity: 10000PCS/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: FN55
  • Type: Roller
  • Inner Diameter: 55mm
  • Width: 80mm
  • OEM: Accept
  • Trademark: SUMA or OEM
  • Specification: P6
  • HS Code: 84836000
  • Model: Fn55
  • Outer Diameter: 140mm
  • Weight: 6kg
  • Material: Gcr15
  • Delivery: 10-15days
  • Transport Package: Single Box or as Your Requirements
  • Origin: Changzhou, Jiangsu, China
Product Description
Internal Freewheels FN
for keyway connection on the outer ring
with rollers
Internal Freewheels FN are roller freewheels without bearing support. The freewheel is built into the customer housing. This makes compact, space-saving fitting solutions possible. The freewheels FN are used as:
 Overrunning Clutches
 Indexing Freewheels
Nominal torques up to 3 000 Nm. The faces of both sides of the outer ring are provided with
grooves for torque transmission. Bores up to 60 mm.
Freewheel SizeNominal torqueMax. speedBore dBDE FNPWeight
MNInner ring freewheels/Outer ring freewheels/mmmmmmmmmmmmmmkg
Nmoverruns min-1overruns min-1        
FN8182 8005 4008203719 3063,00,1
FN12182 8005 40012203719 3063,00,1
FN15502 5005 10015304723 3773,50,3
FN201121 9004 35020366235 5083,50,6
FN252201 5503 35025408040 6894,01,1
FN304101 4003 05030489045 75125,01,6
FN355001 3002 850355310050 80136,02,3
FN407501 1502 500406311055 90157,03,1
FN451 0201 1002 400456312060 95167,03,7
FN501 9009502 050508013070 110178,55,3
FN552 0009001 900558014075 115189,06,0
FN603 0008001 800609515080 125189,08,4
Application example
Internal freewheel FN 20 as a backstop, on the drive shaft of running gears on a chain conveyor. In normal operation, the drive shaft drives and the freewheel works in freewheeling operation. The freewheel as a backstop prevents the running gears from being able to run backwards uncontrolled in the event of a fault.
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