TIREBLADDERS
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Type B curing bladder

RB425/85R21

Truck & Bus Tire Curing Bladders

Tire curing bladder with diagonal etched grooves on a neutral background
Representative Product Image. General authorized tire curing bladder photography; it is not a model-specific image of RB425/85R21.
Dimensions are transcribed from the supplied 2025 catalogue. Final model selection, compatibility and drawings require technical confirmation before ordering.

Application category

Truck & Bus Tire Curing Bladders

Structure type

Type B

Reference tire size

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Source technical data

Foot Inner Diameter400 mm
Foot Height28 mm
Foot Width15 mm
Foot Gauge16 mm
Central Gauge10 mm
Outside Diameter965 mm
Overall Height600 mm
Effective Periphery890 mm
Etching Pattern3#
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