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The NFR Freewheel Clutch One Way Bearing inner race is keyed to the shaft from Suma precision bearing company. The outer race has a positive n6 tolerance to give a press fit in a housing to H7.Additional side notches provide for positive torque transmission.The housing must be strong enough to not
expand after assembly.
Freewheel bearing Introduction
Type NFR freewheel bearing is a bearing supported roller type freewheel without any sealing from Suma precision bearing company. 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 25, two 160.. series ball bearings are used, giving a higher overrunning speed capacity.
A typical arrangement is shown overleaf.
The Freewheel Clutch One Way Bearing inner race is keyed to the shaft. The outer race has a positive n6 tolerance to give a press fit in a housing to H7.Additional side notches provide for positive torque transmission.The housing must be strong enough to not expand after assembly.
Technical Parameter
Type | Size | Overrunning speeds | Weight | |||||||||||
NFR (ANR-ANG) | dH7 (mm) | TKN1 (Nm ) | Nimax2) (min-1) | Namax3) (min-1) | Dn6 (mm) | D2 (mm) | D4 (mm) | L (mm) | I (mm) | t (mm) | bH11 (mm) | r (mm) | r1 (mm) | (kg) |
8 | 20 | 1000 | 1000 | 37 | 20 | 30 | 20 | 3 | 6 | 1 | 1.5 | 0.1 | ||
12 | 20 | 1000 | 1000 | 37 | 20 | 30 | 20 | 3 | 6 | 1 | 1.5 | 0.1 | ||
15 | 78 | 850 | 850 | 47 | 26 | 37 | 30 | 3.5 | 7 | 1.5 | 1.5 | 0.3 | ||
20 | 188 | 650 | 650 | 62 | 37 | 52 | 36 | 3.5 | 8 | 2 | 2 | 0.6 | ||
25 | 250 | 2100 | 3600 | 80 | 40 | 68 | 40 | 0.2 | 4 | 9 | 2.5 | 2 | 1.2 | |
30 | 500 | 1700 | 3200 | 90 | 45 | 75 | 48 | 0.2 | 5 | 12 | 2..5 | 2 | 1.8 | |
35 | 663 | 1550 | 3000 | 100 | 50 | 80 | 53 | 1.2 | 6 | 13 | 2.5 | 2.5 | 2.4 | |
40 | 1100 | 1150 | 2600 | 110 | 55 | 90 | 63 | 2.2 | 7 | 15 | 3 | 2.5 | 3.3 | |
45 | 1500 | 1000 | 2400 | 120 | 60 | 95 | 63 | 2.2 | 7 | 16 | 3 | 2.5 | 4.0 | |
50 | 2375 | 800 | 2150 | 130 | 70 | 110 | 80 | 2.7 | 8.5 | 17 | 3.5 | 3 | 5.7 | |
55 | 2550 | 750 | 2000 | 140 | 75 | 115 | 80 | 4.2 | 9 | 18 | 3.5 | 3 | 6.5 | |
60 | 4250 | <p style="margin-top:auto;margin-bottom: auto;text-align:center"& | ||||||||||||
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E-mail: lena@chinasuma.com
Mobile: 0086-13306120917
Tel: 0086-519-85858018
Fax: 0086-519 85858018
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Add: Liudao Industrial Park, YaoguanTown, Wujin District , Changzhou City , Jiangsu Province, China , 213102
