Wheel end bearing and seal installation guide - SKF

1 Automotive editionFeaturing front and rear Wheel drive modelsWheel end bearing and seal installation guide2 IntroductionContentsThe SKF Seal and bearing lnstallation guide (SKF #457809) covers the removal and installation of SKF seals and bearings on front and rear Wheel drive passenger include: Front a le seals and bearings ear a le seals and bearings inion sealsInstallation instructions also are provided for SKF Speedi Sleeves uItra thin stainless steel wear sleeves used to repair scored or seal worn more informationFor more information on seal and bearing installation and maintenance as for these SKF training materials: ow to Inspect a earing oster 2 assenger ar and ight Truc Seals and earings atalog 2 SKF.

2 State Street Suite 2 lgin I 2 2 1-800-882-0008 Note: All material has been carefull compiled and thoroughl chec ed. owever no responsibilit for possible errors can be tips for proper bearing and seal maintenance Follow these guidelines whenever replacing seals and improved seal performance: Wor with clean tools. re lube the seal with the same lubricant beingretained. ouble chec the seal part number beforeinstallation. Inspect the shaft and bore for burrs nic sor other damage before installing a new seal. ever reuse old seals. ever hammer directl on a improved bearing performance: Wor with clean tools in clean surroundings.

3 Keep bearings wrapped until read to install. re lube bearings before installation . Keep bearing lubricants clean and in coveredcontainers when not in use. emove all outside dirt from housing beforee posing bearings. lean the inside of the housing before replacingbearings. ever spin a bearing with compressed air. ever hammer directl on a bearing . ever mi old and new bearing parts. Loosen bra e ali er ounting bolts (ig ) ull o dust o er (ig ) a out old seal and inner bearing (ig 4) e o e ad usting nut as er and outer bearing (ig ) Front Wheel tapered bearing sets and seals for disc and drum bra esBearing/seal removal.

4 Aise the front end of the car on a hoist or safe support it on ac stands. ever wor on a car supported onl b a bumper ac .2. emove the hubcap or Wheel cover. se a wrench or ac handle to ta e off Wheel lug nuts. Then pull straight bac to remove the n dis bra e ars loosen and remove the bra e caliper mounting bolts ig.. N: The bra e line does not need to be disconnected but the caliper must be su orted while disconnected to avoid bra e line damage. The caliper can usuall be rested on the lower A frame or suspended b a wire loop.. sing pliers or a screwdriver remove the dust cover and cotter pin ig.

5 2 .. oosen the ad usting nut. er the rotor or drum assembl to loosen the washer and outer Wheel bearing bra es ma have to be bac ed off . ush the assembl bac on the spindle.. emove the ad usting nut washer and outer Wheel bearing ig.. ull the drum or rotor assembl straight off the spindle. o not let the inner bearing or seal drag on the spindle threads.. With seal side down la the rotor or drum on the loor. lace a drift or broom handle against the inner face of the bearing cone. arefull tap out the old seal and inner bearing ig.. efore discarding the seal record its part number to aid in selecting the correct SKF replacement.

6 Ne er reuse old seals ontamination entering past an old seal will ruin a bearing .. lean and inspect the old bearing thoroughl before reusing it see leaning and ns e tion . N: If either the cup or cone is damaged discard the entire bearing and replace it with a new one. emember to drive the used bearing cup out of the hub. N: ever install a new bearing cone with a used bearing cup or vice versa.. atch the part number of the old bearing to select the correct SKF replacement. inse bearing in lean sol ent (ig 5) o ressed air a be used to dr leaned bearing (ig ) Grease bearing (ig 7) la e inner side o dru or rotor a e u (ig 8) Inspection and cleaningNote: uipment must conform to S A standards.

7 Sing a clean solvent and a clean dr cloth remove oil grease and dirt from the hub cavit dust cover and se a clean brush to remove dust from bra e parts. N: To avoid inhaling asbestos bra e dust never blow off bra e parts with compressed air.. lace the bearing in a metal bas et and suspend it in a clean container or tan of solvent. If a bas et is not available suspend the bearing with a wire or place it on a metal plate at the bottom of the container or tan .. inse the bearing in clean solvent ig.. r it thoroughl . atural air dr ing is the safest method to use. ompressed air free of all condensed moisture ma be used to blow out the bearings but onl after dirt has been removed ig.

8 N: ever spin a bearing with compressed air. ersonal in ur ma result. Also never use water or steam to clean or rinse a bearing . oisture causes corrosion which results in premature bearing failure.. Inspect the cleaned bearing thoroughl for nic s pitted areas and damage. If an of these are present discard the entire bearing and replace it with a new one.. If it will not be reused immediatel dip the cleaned bearing in a protective lubricant or coat the surface with a light grease. otate the bearing to wor grease thoroughl in and around the rollers and on the races. Wrap the lubricated bearing in waterproof paper and place it in a clean bo.

9 Inspect the spindle for burrs nic s or embedded particles. arefull smooth out an roughness with an emer : eep scores or grooves on the shaft surface where the seal ma es contact must be repaired before reassembling the Wheel see SKF S eedi Slee es page . Slide SKF seal onto installation tool (ig 9) a tool until seal is seated in ub (ig 0) e la e dru or rotor (ig ) nstall outer bearing (ig ) bearing /seal installation . e sure the new seal is the correct one for the application. If ou are replacing the bearing the new part number must match the old one. To select part numbers for either bearings or seals consult the SKF assenger ar ight and edium Truc Seals and earings atalog SKF 2.

10 2. hand or with an SKF bearing repac er 2 force grease through the cage and rollers or balls and on all surfaces of the bearing ig.. lace the inner side of the drum or rotor face up. If ou are replacing the bearing cup use the proper tool to drive the new cup into the hub ig.. oat the hub cavit with the same Wheel bearing grease to the depth of the bearing cup s smallest diameter. Appl a light coat of grease to the spindle.. lace the inner bearing in the hub. ightl coat the lip of the new SKF seal with the same Wheel bearing grease.. Slide the seal onto the proper SKF installation tool. The seal should it over the tool s adaptor and the sealing Iip should point toward the bearing ig.