Q1: What does ‘SKF’ stand for? A: ‘SKF’ stands for “Svenska Kullager Fabriken” which means ‘Swedish Ball Bearing Factory’ in the Swedish language.
Q2: Where can I purchase SKF products? A: SKF products can be purchased from all our distributors and dealers outlets nationwide. Please use our Distributor link above to search for the distributor in your state.
Q3: Besides bearings, what other products or services does SKF sell? A: We also provide technical service and sell bearing related products such as seals, grease, lubricant, maintenance products and tools.
Q4: How do the SKF standard tolerance ranges relate to the ABEC standard? A: SKF tolerance range: CLN/normal = ABEC 1, P6 = ABEC 3, P5 = ABEC 5.
Q5: What type of grease is used in a standard 6000 series deep groove ball bearing with standard 2RS seals? A: Bearings with O/D 62mm = lithium based grease with NGLI 3 consistency (MT 33) and a temperature range of -30 to +120 deg. C.
Q6: What grade of bearing steel is used in the standard SKF 3 grade steel to British Standard Designation? A: To B.S. 970 S34 - A99 (EN 31) martensite through hardened to 58 - 63 Rockwell.
Q7: Which adapter is used to connect the SKF SYSTEM 24 lubricator to the SNL plummer block housing? A: Adapter designation LAPN 1/8.
Q8: How do you convert Newtons from load ratings into metric tonnes? A: Divide the load (in Newtons) by 10,000 to give the figure in tonnes.
Q9: What is the standard clearance band for a bearing of standard precision CLN or normal? A: This is between C2 and C3 clearance band ranges.
Q10: How much grease do I use for the relubrication of a bearing? A: Gp = 0.005 x D x B. Where D = O/D of bearing and B = width of bearing.
Q11: Up to what temperature can bearings continuously operate at, without affecting their performance? A: Generally 125 deg. C, but with exceptions such as spherical roller bearings, which can operate at 200 deg. C.
Q12: How long will a bearing last? A: An approximation can be calculated using the basic ISO L10 life calculation (Page 28 of General Catalogue) but a more accurate answer can be obtained by using more application details and the Lnaa = SKF new life theory calculation.
