CS AOH 39 Hydraulic Withdrawal Sleeves - Professional Metric Bearing Mounting Solution
CS AOH 39 Hydraulic Withdrawal Sleeves facilitate easy mounting and dismounting of large bearings with tapered bores on cylindrical shafts. Featuring precision-engineered oil passages and outer surface grooves for pressurized oil injection. Taiwan-manufactured quality for industrial applications. Available in 15 models from AOH3944 to AOH39/500.
AOH 39 Hydraulic Withdrawal Sleeves
AOH 39 Hydraulic Withdrawal Sleeves for metric shafts, for metric spindle. The withdrawal sleeves is one of the more popular and common used industrial sleeves. It can be used to mount bearings dismount with a tapered bore on the cylindrical seat of stepped shafts. Hydraulic bearing sleeves facilitate mounting on large bearings. An oil pump is required to inject pressurized oil. There are oil passages on the threaded side and grooves on the outer surface which can be filled with internal oil according to requirements. It is convenient for installation and the disassembly of components.
Model
AOH3944, AOH3948, AOH3952, AOH3956, AOH3960, AOH3964, AOH3968, AOH3972, AOH3976, AOH3980, AOH3984, AOH3988, AOH3992, AOH3996, AOH39/500
Drawing
AOH 39 Hydraulic Withdrawal Sleeves Drawing
Hydraulic Withdrawal Sleeves - AOH 39
TAPER 1:12
| Hydraulic Withdrawal Sleeves NO. | d1 | L | L | b | Ro | e | t | Thread2) | Appropriate Withdrawal Nut No. | Weight |
|---|---|---|---|---|---|---|---|---|---|---|
| D1 | ||||||||||
| mm | mm | mm | mm | mm | mm | mm | kg | |||
| AOH3944 | 200 | 77 | 83 | 16 | M8 | 7.5 | 12 | Tr230*4 | HN46 | 4.83 |
| AOH3948 | 220 | 77 | 83 | 16 | M8 | 7.5 | 12 | Tr250*4 | HN50 | 5.29 |
| AOH3952 | 240 | 94 | 100 | 18 | M8 | 7.5 | 12 | Tr270*4 | HN54 | 7.06 |
| AOH3956 | 260 | 94 | 100 | 18 | M8 | 7.5 | 12 | Tr290*4 | HN58 | 7.07 |
| AOH3960 | 280 | 112 | 119 | 21 | M8 | 7.5 | 12 | Tr310*5 | HN62 | 10.1 |
| AOH3964 | 300 | 112 | 119 | 21 | M8 | 7.5 | 12 | Tr330*5 | HN66 | 10.8 |
| AOH3968 | 320 | 112 | 119 | 21 | M8 | 7.5 | 12 | Tr360*5 | HNL72 | 12.4 |
| AOH3972 | 340 | 112 | 119 | 21 | M8 | 7.5 | 12 | Tr380*5 | HNL76 | 13.1 |
| AOH3976 | 360 | 130 | 138 | 22 | M8 | 7.5 | 12 | Tr400*5 | HNL80 | 15.9 |
| AOH3980 | 380 | 130 | 138 | 22 | M8 | 7.5 | 12 | Tr420*5 | HNL84 | 17.2 |
| AOH3984 | 400 | 130 | 138 | 22 | M8 | 7.5 | 12 | Tr440*5 | HNL88 | 18.1 |
| AOH3988 | 420 | 145 | 153 | 25 | G1/8 | 8.5 | 12 | Tr460*5 | HNL92 | 21.5 |
| AOH3992 | 440 | 145 | 153 | 25 | G1/8 | 8.5 | 12 | Tr480*5 | HNL96 | 22.5 |
| AOH3996 | 460 | 158 | 167 | 28 | G1/8 | 8.5 | 12 | Tr500*5 | HNL100 | 26 |
| AOH39/500 | 480 | 162 | 172 | 32 | G1/8 | 8.5 | 12 | Tr520*6 | HNL104 | 27.7 |
⊚ Dimension L1 decreases as the Hydraulic withdrawal sleeve is driven in during mounting.
⊚ M means metric thread. Tr means 30°, trapezoid thread and the digits are outside diameter of thread and pitch.
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Spec. of AOH39
Spec. of AOH3944, AOH3948, AOH3952, AOH3956, AOH3960, AOH3964, AOH3968, AOH3972, AOH3976, AOH3980, AOH3984, AOH3988, AOH3992, AOH3996, AOH39/500
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How Can Hydraulic Technology Reduce Bearing Installation Damage and Downtime?
AOH 39 Hydraulic Withdrawal Sleeves utilize pressurized oil injection through specialized passages and grooves to create a thin oil film between the sleeve and shaft, reducing friction by up to 90%. This hydraulic mounting method eliminates the excessive force that typically causes bearing damage during installation and removal, potentially extending bearing life by 30-40% and reducing maintenance downtime by several hours per operation. Contact us to learn how our hydraulic sleeves can optimize your bearing installation processes.
Available in 15 distinct models ranging from AOH3944 to AOH39/500, these withdrawal sleeves are engineered with a 1:12 taper ratio for optimal fit and performance. Each model is compatible with specific withdrawal nuts and features precise dimensional specifications to ensure proper functionality across various industrial applications. The sleeves' robust construction and meticulous design make them indispensable components for maintenance engineers and equipment manufacturers who require reliable, efficient solutions for bearing assembly operations in heavy machinery environments.