Catalog: Ball Screws
Company/Brand: RBC Bearings
standard ball bearings in Ball Screws by RBC Bearings
rbc bearings incorporated rbc bearings rbc has had a long tradition of ... company was founded in 1919 today rbc bearings has grown into a world-class ... manufacturer of standard and custom-engineered bearings and ... precision ground and rolled ball screws rbc precision ball screws offer ... is achieved in preloaded rbc precision ball screws rbc precision ball screws are ... choose from either precision ground ball screws in either inch or metric sizes ... on the application rbc will supply a ball screw with either internal or external ... ball returns special materials flanges and ... lead times to minimize downtime many standard series are stocked for quick delivery ... what we manufacture rbc bearings with facilities throughout north ... america and europe provides bearings and precision products for applications ...

table of contents pages 1 rbc ball screws 4-5 1.1 classification of ball ... screws 1.2 standard precision ground ball screw availability table 1.3 standard ... precision rolled ball screw availability table 6-7 2.1 ... 3.2 calculation of allowable load 8.3.3 standard material hardness 8.3.4 hardness ... coefficient 25-27 2 features of rbc ball screws 9 driving torque 9.1 ball screw ... torque during acceleration 27-29 3 rbc ball screw selection procedure flow chart 4 ... accuracy of rbc ball screws 4.1 lead accuracy 4.2 mounting ... 10.2 contaminant prevention 10.2.1 standard felt wiper precision series 10.2.2 ... method 29-31 5 screw shaft design 5.1 ball screw manufacturing capability 5.2 ... 12-18 11 rbc part number 18-20 11.1 standard precision series example 11.2 non- ...

1.2 standard precision ball screw availability tables inch series ... lead mm 3 4 5 xxxxxx 6 8 10 12 xxxx 1.3 standard rolled ball screw availability tables ... x 50 x 63 x rbc custom ground precision ball screws are available in many of the od/ ... lead combinations not included in the standard series shown please contact rbc for ...
smooth the axial play in rbc precision ball screws may be reduced to zero by ... result in superior durability of rbc ball screws 2.6 lead time rbc has readily ... available the standard stock series items in this catalog ... standard stock items can be modified to meet our ... length requirements within days custom ball screws require our industry leading 6 ...
4 accuracy of rbc ball screws 4.1 lead accuracy lead accuracy ... of rbc ball screws is specified in three basic ... application rbc manufactures to iso standards however rbc can manufacture to a jis ... standard equivalency specified travel 300 mm 0 ...
class 7 52 class 10 210 table 4.4 jis standards for actual mean travel deviation esa ... 77 93 115 140 170 213 265 table 4.5 jis standards for variation per 300mm v300 and wobble ...
mounting accuracy tolerances to use a ball screw correctly and achieve long life ... processes conform to both iso jis standards for ball screw measurement rbc will ... 1 bearing runout with respect to the ball groove 2 journal runout with respect to ... the ball groove 3 shoulder perpendicularity with ... perpendicularity with respect to the ball groove 5 nut body concentricity with ... respect to the ball groove 6 nut flat parallelism with ... respect to the ball groove 7 total indicated runout of the ... to the shaft center line all rbc ball screws are manufactured inspected and ...
also restricted by the ability of the ball re-circulation system to withstand ... for this measure is the dm·n value dm ball circle diameter n rotation speed min-1 ... many ball screw manufacturers sell product with a ... non-heat treated ball re-circulation system which limits the ... about 2,756 in/min 70,000 mm/min rbc s standard ball re-circulation systems are heat ...

to ensure an economical design for your ball screw application the ball thread ... of the screw shaft for the following ball nut models this is to facilitate the ... loading of the ball nut package a internal deflector type b ... 5.5.2 hardness/transition zone rbc s ball screw shaft is induction hardened thus ... the required accuracy delivery size and ball nut style must be considered when ... series for your application 6.1.2 ball re-circulation type select the ball re- ... circulation type according to the ball nut mounting and application standard ... large lead screw shaft diameter ratio ball deflector type · compact ball nut ...

flopover deflector nut ball screw external yoke style deflector · ... standard offering for gn3066 model · suitable ... of nuts tight clearance between the ball nut and mounting housing should be ... avoided impact to the ball nut can cause breakage or denting of ... the ball return system decide the ball nut type ball return method and flange ... wipers are required wipers are supplied standard on most models wipers can affect the ... economic efficiency c lubrication hole standard nuts are provided with lubrication ... of the nut package removal of the ball nut for assembly purposes should be ...

7.1.4 preloading of ball screws preload eliminates axial ... thus improving the rigidity of the ball screw rbc offers the following preload ... double nut preload tension tension ball nut ball screw with the double nut ... nuts b single nut preloading oversized balls a single nut can be preloaded in two ... ways one method is to insert steel balls slightly larger than the ball groove ... space oversized balls which is referred to as four point ... for light preloading the use of spacer balls 1:1 ratio is standard to improve ... fourpoint contact nut idlers spacer ball screw shaft load balls effect of spacer ... balls 22 ...
8.3.3 standard material hardness screw shaft4150 vds ... ball nut4150 vds ball bearing52100 rockwell hardness 58 62 ... 58 62 62 64 special ball screws 440c ss,17-4 ph ss for special ... when materials other than rbc standard materials are used and the surface ... correction factors 9 driving torque 9.1 ball screw torque 9.1.1 normal operation the ...
safety design 10.1 lubrication rbc s standard grease is suitable for highly loaded ... of -100°f 73°c to 300°f 149°c rbc s standard grease qualified under the mil-prf- ... specification can be used in most ball screw applications rbc s standard oil ... matter or water if allowed to enter the ball screw may increase friction and cause ... models are supplied with a wiper 10.2.1 standard felt wiper precision series wiper ... standard felt wiper 29 ...
and identification of product 11.1 standard precision series example gn1005 1 ... indicates shaft length inches indicates ball nut style a std singlenut 2-circuit ... style adjacent to v-thd flange a standard single bearing journal b standard ... duplexed bearing journal c standard multiple bearing journal d standard ... style away from to v-thd flange a standard single bearing journal b standard ... duplexed bearing journal c standard multiple bearing journal d standard ...
11.2 non-standard precision series example gn1005 1 ... indicates shop sequence number 11.3 standard rolled series example rs0308 1 position ... length in inches on left end journal or standard journal type e e1 f f1,h h1 see ... in inches on right end journal or standard journal type e e1 f f1,h h1 see ...

12 rbc precision ground ball screws dimensional tables rbc s ... standard series for precision ground ball screws covers a wide range of ball ... a metric lead series with an external ball return and an integral flange series ... based on screw major diameter two standard flange mounting hole patterns are ... is an inch lead series with an external ball return and integral flange series ... housing and base mount housing units as standard gv series is an inch lead series with ... an external ball return and optional flange this ... flanges can be provided with standard patterns shown rb series is an inch ... 2 and 4 start are provided as standard or preloaded and non preloaded models ... series precision rolled series rbc s standard rolled series is provided with a 0.006 ... fine inch lead series with an internal ball return this is available preloaded and ...

12.7 standard end journals type a single bearing ... agbcfg type b duplexed bearings abcefdde gn series gn0505 gn0502 gn0605 ...
12.7 standard end journals continued type c ... multiple duplexed bearings agcfbb type d pillow block a d d ...
13.2 rs series inch external ball return optional flange continued l ... 500 3.000 recommended preload preloaded ball nut part no 8103-448-004 8105-448-008 ... preload force amount when compared to standard rs series dimensions in inches unless ...
13.4 standard end journals type e type f type ...
13.5 standard end journals miniature fine lead ...
critical speed rotational speed of a ball nut or ball screw shaft that produces a ... resonant vibration of the ball screw shaft deflection elastic ... deformation the deformation of the ball screw assembly given an applied load ... actual force measured at a radius of a ball screw assembly with or without wipers ... including drag torque to actuate the ball screw assembly drunkenness the ... characteristic of a ball screw assembly under load and rotation ... constant centric axial load that the ball screw can theoretically withstand for a ... revolutions efficiency 90 95 for ball screws measured by the following ... end journal the portion of the ball screw upon which is mounted the support ... bearings and is specified to conform to ... particular standards of concentricity parallelism ...

innovation commitment quality rbc bearings has been producing bearings in the usa ... since 1919 in addition to unique custom bearings rbc offers a full line of standard ... industrial and aerospace bearings including spherical plain bearings ... ® seal crosslube® duralubetm milltufftm bearings and self-lubricating bearings available ... in inch and metric sizes thin section ball bearings standard cross sections to one ... seals are available on all sizes and standard cross sections ball bearings precision ... loads long life smooth operation nicetm ball bearings are offered in caged and full ... configurations self-lubricating bearings radial thrust rod ends spherical ... bearings high temperature high loads available ... sizes fiberglide® self-lubricating bearings cam followers standard stud heavy stud ...