Brake Caliper Adjuster Shafts
Main and secondary shafts for the adjustment mechanism of Knorr-Bremse SN7 series pneumatic disc brakes (22.5″ wheels). Machined from raw material to finished part, with agreed tolerances and full inspection.
Adjuster Main Shaft
The primary shaft of the SN7 brake adjuster mechanism. It transmits adjustment torque and positions the brake adjustment within the caliper.
| Model ref. | YJ5028 — Knorr self-adjusting mechanism shaft |
|---|---|
| Model ref. | YJ5031 — pinion shaft |
| Application | Knorr-Bremse SN7 brake caliper adjuster |
| Wheel / Brake | 22.5″ commercial vehicle pneumatic disc brake |
| Material | Per drawing (to be confirmed against OE spec) |
| Machining | Turning, threading, splining per drawing |
| Surface treatment | Per customer / OE requirement |
| OE / cross ref. | Confirmed against your drawings & parts catalogue |
Adjuster Secondary Shaft
The matching secondary shaft of the SN7 adjustment mechanism. Supplied as a matched set with the main shaft for reliable, consistent adjustment.
| Application | Knorr-Bremse SN7 brake caliper adjuster |
|---|---|
| Wheel / Brake | 22.5″ commercial vehicle pneumatic disc brake |
| Material | Per drawing (to be confirmed against OE spec) |
| Machining | Turning, threading, splining per drawing |
| Surface treatment | Per customer / OE requirement |
| Packing | Plastic tray + carton, wooden pallet / crate |
Brake Caliper Calibration Bolt
The calibration / adjustment bolt of the brake caliper adjuster mechanism, used to set and maintain correct brake adjustment on the SN7 series.
| Application | Knorr-Bremse SN7 brake caliper adjuster |
|---|---|
| Wheel / Brake | 22.5″ commercial vehicle pneumatic disc brake |
| Material | Per drawing (to be confirmed against OE spec) |
| Machining | Turning, threading per drawing |
| Surface treatment | Per customer / OE requirement |
| Model ref. | YJ5032 (Knorr self-adjusting mechanism family) |
Adjuster Main Shaft — Allen Type
Allen-type main shaft of the SN7 brake adjuster mechanism (self-adjusting mechanism, Allen version). Built for reliable adjustment performance in the Knorr-Bremse SN7 caliper.
| Model ref. | YJ5029 — Knorr self-adjusting mechanism (Allen) |
|---|---|
| Application | Knorr-Bremse SN7 brake caliper adjuster |
| Wheel / Brake | 22.5″ commercial vehicle pneumatic disc brake |
| Material | Per drawing (to be confirmed against OE spec) |
| Machining | Turning, threading, splining per drawing |
| Packing | Plastic tray + carton, wooden pallet / crate |
2nd Generation Adjuster Main Shaft — Torx NT
Second-generation main shaft with Torx NT drive — the new type self-adjusting mechanism for the Knorr-Bremse SN7 brake caliper.
| Model ref. | YJ5030 — Knorr Torx NT self-adjusting mechanism (new type) |
|---|---|
| Application | Knorr-Bremse SN7 brake caliper adjuster |
| Wheel / Brake | 22.5″ commercial vehicle pneumatic disc brake |
| Material | Per drawing (to be confirmed against OE spec) |
| Machining | Turning, threading, splining per drawing |
| Packing | Plastic tray + carton, wooden pallet / crate |
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