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).
Specification sheet for David Brown Radicon Type 'RHU' worm reducers.
| Identifier | ExFiles\Box 159\6\ scan0052 | |
| Date | 1st May 1938 guessed | |
| RADICON WORM REDUCERS SPECIFICATION No. E387·17 DAVID BROWN RADICON WORM REDUCERS Type “RHU” (single reduction) PRINCIPAL DIMENSIONS (inches) Size | A | B | C | D | D2 | E | F | F2 | F3 | G | H | H2 | K | K2 | L | M | N | P | R | S | T | U | V | W | X --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- 3 RHU | 3 | 8½ | 3¼ | 4½ | † | 4½ | 3½ | 4¹ | † | 7½ | 6½ | 2½ | ⅞ | 1½ | 9½ | 6½ | 5½ | 7 | 4 | ¾ | 2½ | - | - | - | 1 4 RHU | 4 | 12 | 4¼ | 6 | 7⅝ | 5½ | 4¾ | 6 | 7¾ | 9 | 8¾ | 3¼ | 1¼ | 1⅝ | 12½ | 9¾ | 8 | 9⅝ | 4 | ¾ | 3¼ | - | 7 | - | 1¼ 5 RHU | 5 | 13½ | 4¾ | 6½ | 9 | 6½ | 5½ | 7 | 9½ | 10½ | 9¾ | 3½ | 1½ | 2 | 13½ | 10½ | 9½ | 11¼ | 4 | ¾ | 3½ | - | - | - | 1¼ 6 RHU | 6 | 16 | 5 | 7 | 9½ | 7¼ | 5¾ | 7¾ | 9¾ | 11 | 10¼ | 3½ | 1½ | 2½ | 15½ | 11½ | 10½ | 13 | 4 | ⅞ | 3¾ | - | 8 | - | 1¼ 7 RHU | 7 | 18 | 5¼ | 7½ | 10⅞ | 8¼ | 6⅜ | 8¾ | 11¼ | 12½ | 11¾ | 4½ | 1¾ | 2½ | 17½ | 12½ | 12 | 10 | 15 | 4 | ⅞ | 4 | - | - | - | 1½ 8 RHU | 8 | 20½ | 5¾ | 8 | 10⅞ | 9¼ | 6⅞ | 9¾ | 12¼ | 13½ | 12¾ | 5¼ | 1¾ | 2¾ | 19½ | 13½ | 13 | 11 | 17 | 4 | 1 | 5 | - | 8¾ | 1¾ 10 RHU | 10 | 25 | 6¾ | 9½ | 12⅝ | 11½ | 7⅞ | 12½ | 14 | 16½ | 14¾ | 6 | 2¼ | 3¼ | 23½ | 15¾ | 17 | 13 | 21 | 4 | 1⅛ | 5 | 2½ | 10¾ | 2 12 RHU | 12 | 29 | 7½ | 10½ | 14 | 13½ | 8½ | 14¼ | 17½ | 19½ | 16¼ | 6½ | 2½ | 3¾ | 28 | 17½ | 20 | 14 | 25½ | 4 | 1¼ | 6 | 3 | 12 | 2 14 RHU | 14 | 34 | 8½ | 12½ | 16 | 15½ | 10 | 16¾ | 20¼ | 22½ | 19 | 7½ | 3 | 4½ | 32½ | 20½ | 23 | 17 | 29½ | 4 | 1⅜ | 7 | 3½ | 14 | 2 17 RHU | 17 | 40 | 10 | 14½ | 18½ | 18¾ | 12 | 20¼ | 24½ | 27½ | 21½ | 8 | 3½ | 5½ | 39½ | 22½ | 30 | 19 | 35½ | 6 | 1½ | 7½ | 5 | 16½ | 3 20 RHU | 20 | 48 | 11½ | 16½ | 21 | 21½ | 12½ | 23½ | 29¼ | 32 | 24 | 9½ | 4 | 6½ | 46 | 25 | 35 | 21 | 41½ | 6 | 1¾ | 9 | 6 | 18½ | 3½ 24 RHU | 24 | 57 | 13 | 17 | 24 | 25½ | 13¾ | 28¾ | 34 | 37 | 26 | 10½ | 4½ | 7 | 54 | 29 | 43 | 25 | 49 | 6 | 1¾ | 9 | 6 | 21½ | 4½ † No fan fitted on smallest unit, size 3 RHU. Read dimension F3 as F2. APPROXIMATE SHIPPING SPECIFICATION AND OIL CAPACITY | | 3 RHU | 4 RHU | 5 RHU | 6 RHU | 7 RHU | 8 RHU | 10 RHU | 12 RHU | 14 RHU | 17 RHU | 20 RHU | 24 RHU --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- Net Weight (lb.) | 60 | 137 | 196 | 276 | 353 | 461 | 764 | 1175 | 1795 | 2940 | 4425 | 6216 Gross Weight (lb.) | 95 | 251 | 280 | 376 | 488 | 616 | 974 | 1455 | 2155 | 3440 | 5095 | 7336 Volume Packed (cu. ft.) | 2 | 6 | 8 | 10·5 | 13 | 17 | 27 | 38 | 54 | 82 | 116 | 158 ‡Oil required at 1st Filling (galls.) | ·15 | ·4 | ·52 | ·7 | 1·25 | 1·25 | 2·3 | 3 | 4·7 | 8·25 | 11 | 16 ‡ Unless specified, we do not include a supply of oil with any unit. As improvements in design are continually being made, this specification is not to be regarded as binding in detail, and dimensions are subject to alteration without notice. DBS DAVID BROWN & SONS (HUDD.) LTD. HUDDERSFIELD | ||