

JIUZHOU Axle
Website:liangshanjiuzhou.com
Email:969594273@qq.com
Foreign trade sales hotline:
+86 153 3547 0456
Domestic sales hotline:
+86 165 6155 6789
After sales service hotline:
+86 153 3547 0456
Manual adjustment arm
Model Number:JZ250902
Manual slack adjusters are cost-effective, reliable brake components for heavy-duty trailers and trucks, widely adopted by OEMs and aftermarket fleets to maintain consistent braking performance.
Byword:manual slack adjuster, trailer slack adjuster, S-cam brake adjuster, forged steel slack adjuster, heavy-duty trailer brake parts, truck brake adjuster, brake clearance adjuster, 10-spline slack adjuster, 28-spline slack adjuster
Classification: Products Trailer Accessories Axle Parts
E-mail:969594273@qq.com

1.Durable Construction
Forged steel housing with hardened worm/sector gears ensures long-term reliability under frequent adjustments and heavy-duty use.
2.Stable Braking Performance
Manual fine-tuning maintains correct push-rod stroke, improving brake response, reducing lining wear, and extending drum life.
3.Serviceability & Compatibility
Greaseable design, replaceable bushings, and compatibility with American/European S-cam brake systems simplify maintenance and replacement.
4.Options & Specifications
Available in left/right hand, multiple arm lengths/offsets, and common spline sizes (e.g., 10-spline / 28-spline) to meet OEM and aftermarket needs.
| model number | trem No. | JZ-SD2937 | JZ-SD2910 | ||
| international number | OME No. | 2024 | 2023 | 18116 | 788213 |
| Spline Parameter (mm) | Spline No. | 37 | 37 | 37 | 10 |
| Width | 2.022 | 2.022 | 2.022 | 5.9 | |
| Big Diz | <40.9 | <40.9 | <40.9 | <38.2 | |
| Small Dia | <38.54 | <38.54 | <38.54 | <31 | |
| Body Parameter (mm) | A | 127 | 127 | 127 | 129 |
| B | 152.4 | 152.4 | 152.4 | 135 | |
| C | 177.8 | – | 177.8 | 150 | |
| D | 203.2 | 165 | |||
| E | 180 | ||||
| F | 195 | ||||
| bushings(mm) | Bush | <12.7 | <12.7 | <12.7 | <14 |
| note | Remark | American style | German style | ||
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