The bolts are made of kripton, and BMW gave us the lock key made out of butter.Īs mentioned, if your lug bolts are torqued at 88lbs (or 119 nM metric) the BMW locks come off without issue. I wish someone had told me about this before. Let me get the photographic evidences before i tell it. (For Figure Nos.Oh boy do i have a story for all of you. For hole sizes smaller than shown in this
#Mguard lug bolt mini key series
NOTE: These flanges may be clamped together by means of aĬentral nut, or by a series of bolts or some other equivalent
| diameter | diameter | of flange | of flange Wheel | Wheel | Minimum | Minimum | Minimumĭiameter | hole | outside | thickness | thickness WHEEL SLEEVES FOR PRECISION GRINDING ONLY TABLE O-8 - MINIMUM DIMENSIONS FOR STRAIGHT FLANGES USED AS Wheel | hole | Minimum | thickness | thickness | minimumĭiameter | diameter | flange | of | of flange | thicknessįootnote(1) Flanges shall be of steel, quality SAE 1040 orĮquivalent, annealed plate, heat treated to R.25-30.įootnote(2) For wheels under 1 1/4 inch thick F dimension shall not FOR MECHANICAL GRINDERS 12,500 S.F.P.M. TABLE O-7 - MINIMUM DIMENSIONS FOR STRAIGHT FLANGES Unrelieved and shall be maintained flat and true. | 24 | 1 1/2 | 2 1/2 | 1 3/8 | 1 1/4įootnote(1) Flanges for wheels under 2 inches diameter may be | of | Minimum | Maximum | flange | at edgeĤ. TABLE O-6 - MINIMUM DIMENSIONS FOR STRAIGHT RELIEVED FLANGES(1)Ī- | B- | C- Radial width of | D- | E-ĭiameter| Minimum | bearing surface | Minimum | Minimum Not exceed 40 percent of wheel thickness. _|_|_|_|_|_įootnote(1) For wheels under 1 1/4 inches thick F dimension shall Wheel | hole | flange | thickness | thickness | minimumĭiameter | diameter | diameter | of flange | of flange | thickness | Wheel | Minimum | Minimum | Minimum | (D-E) FOR ORGANIC BONDED WHEELS OVER 1 1/2 INCHES THICK(1) TABLE O-5 - MINIMUM DIMENSIONS FOR STRAIGHT ADAPTOR FLANGE Specifications| of | of band A | of rivets | between Material | Diameter | thickness | diameter | distance TABLE O-3 - GUIDE FOR CONSTRUCTION OF BAND TYPE GUARDS Of | off | exceed | 48 inches | 72 inches Of | off | exceed | inches | 20 inches | 30 inches
Used | thickness | Speed |_Ĭonstruction| cutting | to | 6 to 11 | Over 11 to |Over 20 to Material | Maximum | | Cutting off wheel diameters MEMBERS FOR SAFETY GUARDS USED WITH CUTTING-OFF TABLE O-1 - MINIMUM BASIC THICKNESS FOR PERIPHERAL AND SIDE When mounting wheels which have not been cemented together, or ones which do not utilize separating spacers, care must be exercised to use wheels specially manufactured for that purpose. Spacers shall be equal in diameter to the mounting flanges and have equal bearing surfaces. When more than one wheel is mounted between a single set of flanges, wheels may be cemented together or separated by specially designed spacers.
Types 27 and 28 wheels, because of their shape, require specially designed adaptors. Type 27 and Type 28 wheels shall be used only with a safety guard located between wheel and operator during use. Mounts which are affixed to the wheel by the manufacturer shall not be reused. The variance in flange diameters, the adaptor nut being less than one-third wheel diameter, and the use of side pressure in wheel operation limits the use to reinforced organic bonded wheels. The adaptor nut which is less than the minimum one-third diameter of wheel fits in the depressed side of wheel to prevent interference in side grinding and serves to drive the wheel by its clamping force against the depressed portion of the back flange. The back flange shall extend beyond the central hub or raised portion and contact the wheel to counteract the side pressure on the wheel in use. Type 27 and Type 28 wheels, because of their shape and usage, require specially designed adaptors.
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