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(888) 312-8812 Login SignupSpring Brake (S-Cam)
S-cam axles on trucks and trailers are the setting for the Bendix Air Brake Spring Brake, which applies the parking brake with spring force when air is released. A spring brake also acts as the service chamber, so the same unit handles normal braking and parking on that wheel end. The WC suffix sets it apart from other NT3030STD versions, so match the full SKU on the old unit before ordering. Setting pushrod length and checking stroke after the Bendix NT3030STD-WC is installed keeps braking even across the axle.
| Brand | EnduraSure |
| Cautionary Note(s) | Do not disassemble while park side is caged under pressure |
| Chamber Style | Double Diaphragm |
| Chamber Type / Size | T30/30 |
| Clamp Angle | 45Adeg |
| Clevis / Yoke Arm Bushing Pin Diameter | A~ .50 IN (A~ 12.7 MM) |
| Clevis / Yoke Arm Link Pin Diameter | A~ .25 IN (A~ 6.35 MM) |
| Clevis / Yoke Pin Spacing | 1.30 IN (33 MM) |
| Clevis / Yoke Style | Welded |
| Market Indicator | Aftermarket New |
| Maximum Operating Temperature | 175 AdegF (79 AdegC) |
| Minimum Operating Temperature | -40 AdegF (-40 AdegC) |
| Mounting Stud Length | 1.50 IN (38.1 MM) |
| Parking Port (12) | 3/8-18 NPTF |
| Port Angle | 270Adeg |
| Push Rod Length (to Yoke Pin Center when Applicable) [IN] | 2.25 in |
| Push Rod Thread / Style | Not applicable to this part |
| Service Chamber Joint Type | Double Clamp Band |
| Service Port (11) | 3/8-18 NPTF |
| Stroke | 2.50 IN (63.5 MM) |
| Stud Spacing | 4.75 IN (120.7 MM) |
| Stud Thread Size | 5/8-11 UNC-2A |
| Country of Origin (Primary) | MX |
| UPC | 07894294732739 |
| VMRS Code | 013004027 |
| Brand | Part Number |
|---|---|
| BWNT3030STDWC | |
| HALDEX | GC3030CW |
| N/A | 800921 |
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