Parts & Machinery Guides
Fitting guides, OEM cross-reference notes and maintenance advice from the Schwarze Bulle parts desk.
Oil seal sizes: metric charts and measuring guide
Oil seal sizes: metric charts and measuring guide ! Technician measuring oil seal with caliper Oil seal sizes follow a three-number notation: d × D × W, where d is the shaft diameter (the seal's inner bore), D is the housing bore diameter (the seal's outer diameter), and W is the axial width.
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Hydraulic hose fittings types: identify and choose correctly
Hydraulic hose fittings types: identify and choose correctly ! Technician inspecting hydraulic hose fittings The six fitting families you will encounter on most UK agricultural and mobile plant hydraulic systems are JIC (37° flare), ORFS (O‑ring face seal), BSPP (British Standard Pipe Parallel), BSPT (British Standard Pipe Tapered), NPT (National Pipe Taper), and metric/DIN variants.
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