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).
Experimental wide base rim contours for 16 inch passenger car tyres.
| Identifier | ExFiles\Box 156\3\ scan0250 | |
| Date | 17th January 1941 | |
| WIDE BASE EXPERIMENTAL RIM CONTOURS FOR PASSENGER CAR TYRES DIAMETERS SHOWN ARE FOR 16" RIMS. APPROVED OCT 25-1940 TE-10-30-40-L-1. 6-L OPTIONAL WELL WIDTH REVISED 1-17-41. Top Diagram: Label: 6-L Overall Width: 6" ± .063" Left Side Dimensions: .022 MIN, 2°, 1.879" MAX, 1.000 MIN, .156 R MAX., 1.125 MIN, 13.733 DIA MAX. Left Side Angles and Radii: 20°±5°, .375 R, .250 R, .750 R Center Dimensions: 5°±1°, 1.250 MIN, 1.125 MIN, .250 R Right Side Dimensions: 1.000" MIN, .525", 2° MIN, .031 R.MIN., .275 R, .432", .468 R, .850 +.047 -.016, 15.968" ± .015 DIA, .156 ±.031", .618"/.633" DIA Right Side Angles and Radii: 20°±5°, .375 R Bottom Diagram: Label: 6 1/2-L. Overall Width: 6 1/2" ± .063" Left Side Dimensions: .022 MIN, 2°, 2.394", 1.000 MIN, .156R MAX, 1.125", 13.733" DIA. MAX. Left Side Angles and Radii: 20°±5°, .375 R, .250R, .750R Center Dimensions: 5°±1°, 1.250 MIN, .250 R Right Side Dimensions: 1.000 MIN, .525", .031 R MIN, .275R, .432", .468R, .850 +.047 -.016, 15.968" ±.015" DIA., .156 ±.031", .618"/.633 DIA. Right Side Angles and Radii: 20°±5°, .375R | ||