JOSG Step flanged graphite plugged bronze bushing is fabricated from high-strength bronze alloy with embedded solid graphite as dry lubricant. Unique stepped flange structure realizes two-stage positioning during assembly for accurate installation. Suitable for low-speed, heavy-load reciprocating and swing movement without continuous oil supply. Widely used in automation equipment, injection molds, textile machinery and hydraulic engineering components.
This stepped-flange self-lubricating bronze bushing features a unique stepped flange profile that provides progressive axial location and increased load distribution. The flange incorporates a stepped diameter design, allowing the bushing to seat into counterbores with varying depths while maintaining consistent axial positioning. Graphite plugs are distributed across the cylindrical bore and the flange face, delivering maintenance-free lubrication for both radial and axial loading. The bronze substrate supports static loads up to 210 N/mm². Custom stepped flange geometries, dimensions, and graphite patterns available based on application requirements.
| Standard No | d | L | L1 | L2 | t | D | Tolerance | D1 | L1 | ||
| e7 | k6 | ||||||||||
| JOSG-9×15 | 9 | 12 | 15 | 3 | 3 | 14 | -0.032 -0.050 |
+0.012 +0.001 |
16 | 9 | +0.015 0 |
| JOSG-9×20 | 17 | 20 | |||||||||
| JOSG-9×25 | 22 | 25 | |||||||||
| JOSG-9×30 | 27 | 30 | |||||||||
| JOSG-9×39 | 36 | 39 | |||||||||
| JOSG-10×15 | 10 | 12 | 15 | 10 | |||||||
| JO5G-10×20 | 17 | 20 | |||||||||
| JOSG-10×25 | 22 | 25 | |||||||||
| JOSG-10×30 | 27 | 30 | |||||||||
| JOSG-10×39 | 36 | 39 | |||||||||
| JOSG-14×26 | 14 | 17 | 26 | 9 | 6 | 20 | -0.040 -0.061 |
+0.015 +0.002 |
25 | 14 | +0.018 0 |
| JO5G-14×31 | 22 | 31 | |||||||||
| J0SG-14×36 | 27 | 36 | |||||||||
| JOSG-14×45 | 36 | 45 | |||||||||
| JOSG-14×55 | 46 | 55 | |||||||||
| JOSG-14×65 | 56 | 65 | |||||||||
| JOSG-15×26 | 15 | 17 | 26 | 15 | |||||||
| JOSG-15×31 | 22 | 31 | |||||||||
| JOSG-15×36 | 27 | 36 | |||||||||
| JOSG-15×45 | 36 | 45 | |||||||||
| JOSG-15×55 | 46 | 55 | |||||||||
| JOSG-15×65 | 56 | 65 | |||||||||
| JOSG-18×26 | 18 | 17 | 26 | 26 | 31 | 18 | |||||
| JOSG-18×31 | 22 | 31 | |||||||||
| JOSG-18×36 | 27 | 36 | |||||||||
| JOSG-18×45 | 36 | 45 | |||||||||
| JOSG-18×55 | 46 | 55 | |||||||||
| JOSG-18×65 | 56 | 65 | |||||||||
| JOSG-18×75 | 66 | 75 | |||||||||
| JOSG-20×26 | 20 | 17 | 26 | 20 | +0.021 0 |
||||||
| JOSG-20×31 | 22 | 31 | |||||||||
| JO5G-20×36 | 27 | 36 | |||||||||
| JOSG-20×45 | 36 | 45 | |||||||||
| JOSG-20×55 | 46 | 55 | |||||||||
| J0SG-20×65 | 56 | 65 | |||||||||
| JOSG-20×75 | 66 | 75 | |||||||||
| JOSG-22×26 | 22 | 17 | 26 | 30 | 35 | 22 | |||||
| JOSG-22×31 | 22 | 31 | |||||||||
| JOSG-22×36 | 27 | 36 | |||||||||
| JOSG-22×45 | 326 | 46 | |||||||||
| JOSG-22×55 | 46 | 55 | |||||||||
| JOSG-22×65 | 56 | 65 | |||||||||
| JOSG-22×75 | 66 | 75 | |||||||||
| JOSG-22×85 | 76 | 85 | |||||||||
| JOSG-22×95 | 86 | 95 | |||||||||
| JOSG-24×26 | 24 | 17 | 26 | 42 | -0.040 -0.061 |
+0.015 +0.002 |
35 | 24 | +0.021 0 |
||
| JOSG-24×31 | 22 | 31 | |||||||||
| JOSG-24×36 | 27 | 36 | |||||||||
| JOSG-24×45 | 36 | 45 | |||||||||
| JOSG-24×55 | 46 | 55 | |||||||||
| JOSG-24×65 | 56 | 65 | |||||||||
| JOSG-24×75 | 66 | 75 | |||||||||
| JOSG-24×85 | 76 | 85 | |||||||||
| JOSG-24×95 | 86 | 95 | |||||||||
| JOSG-30×36 | 30 | 27 | 36 | -0.05 -0.075 |
+0.018 +0.002 |
47 | 30 | ||||
| JOSG-30×45 | 36 | 45 | |||||||||
| JOSG-30×55 | 46 | 55 | |||||||||
| JOSG-30×65 | 56 | 65 | |||||||||
| JOSG-30×75 | 66 | 75 | |||||||||
| JOSG-30×85 | 76 | 85 | |||||||||
| JOSG-30×95 | 86 | 95 | |||||||||
| JOSG-30×105 | 96 | 105 | |||||||||
| JOSG-30×125 | 116 | 125 | |||||||||
| JOSG-32×36 | 32 | 27 | 36 | 32 | |||||||
| JOSG-32×45 | 36 | 45 | |||||||||
| JOSG-32×55 | 46 | 55 | |||||||||
| JOSG-32×65 | 56 | 65 | |||||||||
| JOSG-32×75 | 66 | 75 | |||||||||
| JOSG-32×85 | 76 | 85 | |||||||||
| JOSG-32×95 | 86 | 95 | |||||||||
| JOSG-32×105 | 96 | 105 | |||||||||
| JOSG-32×125 | 116 | 125 | |||||||||
| JOSG-40×68 | 40 | 56 | 68 | 12 | 10 | 54 | -0.060 -0.090 |
+0.021 +0.002 |
60 | 40 | +0.025 0 |
| JOSG-40×78 | 66 | 78 | |||||||||
| JOSG-40×88 | 76 | 88 | |||||||||
| JOSG-40×98 | 86 | 98 | |||||||||
| JOSG-40×108 | 96 | 108 | |||||||||
| JOSG-40×128 | 116 | 128 | |||||||||
| JOSG-40×148 | 136 | 148 | |||||||||
| JOSG-40×168 | 156 | 168 | |||||||||
| JOSG-42×68 | 42 | 56 | 68 | 42 | |||||||
| JOSG-42×78 | 66 | 78 | |||||||||
| JOSG-42×88 | 76 | 88 | |||||||||
| JOSG-42×98 | 86 | 98 | |||||||||
| JOSG-42×108 | 96 | 108 | |||||||||
| JOSG-42×128 | 116 | 128 | |||||||||
| JOSG-42×148 | 136 | 148 | |||||||||
| JOSG-42×168 | 156 | 168 | |||||||||
Founded in 2014, Shuangnuo has 10 years of experience in the industry.
Strong production capacity ensures that we can organize material production for customers as soon as possible and shorten the production cycle.
There are more than 5,000 cooperative customers around the world.
Machinery that runs in hard-to-reach locations, cleanrooms, or continuous-duty cycles cannot always be stopped for...
Industrial equipment loses production hours every year to a single recurring cause: bearing failure from inadequat...
Industrial equipment that runs continuously cannot always be pulled offline for a grease fitting. That single cons...
Grease fittings that get skipped, oil lines that run dry, moving parts that seize without warning — most of these ...
Industrial machinery designers face a recurring tradeoff: bearings that perform well under load often require freq...
Self lube bushings are maintenance-free plain bearings engineered with solid lubricant reservoirs embedded directl...
Zhejiang Shuangnuo Bearing Technology Co., Ltd. specializes in the production of various self-lubricating copper alloy products such as Stepped-Flange Self-lubricating Bronze Bushing Graphite Plugged Sliding Sleeve Bearing JOSG.
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