From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Blueprint drawings and specifications for front and rear leaf spring suspension systems.
| Identifier | ExFiles\Box 178\1\ img197 | |
| Date | 28th August 1926 | |
| - 24 - same results be obtained by a series of helical springs. At the moment the helical spring appears to offer the greater commercial possibilities. VI: SOME DETAILS OF THE R-R SUSPENSION SYSTEMS. (a) Spring dimensions. BLUEPRINT DATA: Top Left: 20 HP FRONT ROAD SPRING - F.53583 - Clearance (Full Load): 1.950 + .300 / -.300 - Buffer to Spring Clips. - Dimensions: 18.000, 20.000 - Unloaded Camber: 2.500 - Loaded Camber: .500 (POS.) - Width of Spring Plates: 1.750 - Rating (600 LBS Spring): 300 LBS. PER 1" Top Right: 20 HP REAR ROAD SPRING - F.53169 - Clearance Buffer to Axle BKT. (Full Load): 3.650 + .375 / -.375 - Dimensions: 28.000, 28.000 - Unloaded Camber: 5.125 - Loaded Camber: NIL. (SPRING FLAT) - Width of Spring Plates: 2.250 - Rating (900 LBS. SPRING): 175 LBS. PER 1" Bottom Left: 40/50 HP FRONT ROAD SPRING - F.71975 - Clearance Buffer to Spring Clips. (Full Load): 1.750 + .250 / -.250 - Dimensions: 21.000, 22.500 - Unloaded Camber: 2.600 - Loaded Camber: .500 (NEG) - Width of Spring Plates: 2.000 - Rating (1100 LBS. SPRING): 355 LBS. PER 1" Bottom Right: 40/50 HP REAR ROAD SPRING - F.10612 - Buffer to Axle Clearance. (Full Load): 4.150 + .500 / -.500 - Dimensions: 8.925, 26.500, 26.500 - Unloaded Camber: 2.500 - Loaded Camber: 1.500 (NEG) - Width of Spring Plates: 2.500 - Rating (2000 LBS. SPRING): 125 LBS. PER 1" | ||