Product Main

Specifications

Model (mm)
Dimensions
(N.m)
Rated load		 (r/min)
Limiting speed
Choose
bearing
(kg)
Mass
d D B s h b nimax namax
NFR25 25 80 40 0.2 4 9 200 2100 3600 16008 1.2
NFR30 30 90 48 0.2 5 12 400 1700 3200 16009 1.8
NFR35 35 100 53 1.2 6 13 530 1550 3000 16010 2.4
NFR40 40 110 63 2.2 7 15 880 1150 2600 16011 3.3
NFR45 45 120 63 2.2 7 16 1200 1000 2400 16012 4.0
NFR50 50 130 80 2.7 8.5 17 1900 800 2150 16014 5.7
NFR55 55 140 80 4.2 9 18 2000 750 2000 16015 6.5
NFR60 60 150 95 3.2 9 18 3400 650 1900 16016 8.9
NFR70 70 170 110 1.1 9 20 4700 550 1750 16018 13.5
NFR80 80 190 125 0 9 20 8000 500 1600 16021 19.0
NFR90 90 215 140 0.6 11.5 24 13800 450 1450 16024 27.2
NFR100 100 260 150 2.6 14.5 28 15700 350 1250 16028 44.5
NFR130 130 300 180 2 17.5 32 27800 250 1000 16032 68.0
 
Type NFR is a bearing supported roller type freewheel without any sealing. Lubrication and sealing must be provided by the installation. Standard lubrication is oil. Size 8 to 20 units use steel on steel bearing support from the inner race. Above size 20, two 160.. series ball bearings are used, giving a higher overrunning speed capacity. The inner race is keyed to the shaft. The outer race has a positive n6 tolerance to give a press fit in a housing to H6. Additional side notches provide for positive torque transmission. The housing must be strong enough to not expand after assembly.