Bearings Power Transmission Material Handling Fluid Power Electro Mech Repair Sealing Technology Automation Industry Fun Facts Be the smartest guy at the water cooler. Ask Frankie A Fun Fact! Type a keyword into the box below. Example: "bearing" Search Scroll for more questions Go Can you tell the I.D. of a Bearing by the part number? Do Taper Lock Bushing part numbers mean anything? For example 2517 x 1 1/2 What is the difference between and "SD" and an "SDS" Q.D. Bushing? What does Q.D. Bushing stand for? Someone told me that it is wrong to use Anti-Seez compounds on Q.D. Bushings. True or False? Is it possible to tell the length and top width of a v-belt by its part#? How can you tell top width and length on A, B, C, D & E V-Belts? How about the variable speed belt part numbers? Do A.N.S.I. standard roller chain part numbers stand for anything? What does ANSI stand for? Can a shaft size be determined by looking at a C/R oil seal part #? What does NEMA mean? Do NEMA motor numbers mean anything? What does A.G.M.A. stand for? When they say A.B.E.C. 3, 5, 7, 9, what does that mean? On a worm drive, which is the worm and which is the worm wheel? A Timing Belt number of, for example 700H150 means what? So, what does XL, L, H, XH, XXH tell us about timing belts? Can you tell the outside diameter of a sheave by the part #? On a worm gear drive, which gear is steel vs. bronze? I see F.H.P. on some belts. What does it stand for? Why do some V-belts have cogs on the inside? Who knows what P.D. stands for? Do timing belts go by any other names? I recently put a set of 4 B-90 v-belts on a sheave and lined up all the part numbers. In other words, B-90/B-90/B-90/B-90 straight across. I tensioned them as prescribed, turned the drive on and then turned it off. I was shocked to see that the labels no longer lined up. Why? What is Double Pitch Roller Chain? When they say Drive Series vs/ Conveyor Series in roller chain, what is the difference? Frankie should know this, but is a little confused by the word "Pitch". Pitch is talked about in different products. What does "Pitch" mean? What is the difference between a Miter Gear and a Bevel Gear? They look very similar to me, Frankie. Frankie, do Spur Gear numbers mean anything? Frankie, I hear the term Pressure Angle from time to time when talking about gears. What does that indicate? Frankie, can you help with a simple dispute that we have in our maintenance shop? How many shaft heights does your standard cast iron ball bearing pillow block come in? What dimensions are critical in identifying a pillow block? Frankie, what does H.T.D. stand for? When looking at an electric motor name plate, what does T.E.F.C. mean? Frankie, one of the guys at the water cooler said that the belts with the grooves that run with the length of the belt are called Serpentine Belts. Is that true? What is a Spherical Roller Bearing vs. a Cylindrical Roller Bearing, vs. a Taper Roller Bearing? Frankie, can you run a gear with a 14½° P.A. with a gear with a 20° P.A.? Frankie, on standard cast iron mounted units, what are common locking mechanisms, bearing to shaft? I have one for Frankie Fun Fact. What is a take up bearing used for? One of the guys in the shop said it is an adjustable bearing. Can Frankie give us a rule of thumb as to what is a safe operating temperature for a Bearing? Frank, is there any rhyme or reason to a part # that I might see on a sprocket? Frankie, is there a simple formula that you could give us to help figure out RPM’s on a v-belt drive? Is there a formula that Frankie has that helps with figuring out v-belt length? Ok Frankie, is there a safe rule to follow as to where you place an Expansion Block vs. the Non-Expansion Block in a Drive? At times I see a letter followed by a # on the outer ring of a bearing. Ex: C3 Does that have any significance? Frankie, why are mounted units, Ex: Pillow Blocks, 4 Bolt Flanges, etc. self-aligning? Is there such a thing as a Pillow Block that is not self-aligning? Frankie, at times I hear the term “Felt Seal Series of Bearings”. What does that mean? At times I will see a # like 16 or 24 or 26, etc. on the inner or outer race of a bearing in a mounted unit. What does that mean? Answer Select a question from the list and I'll give you the answer! About BDSWIN With BDSToolboxManufacturersContact Us