MetricMetric & American Standard & American Standard Power Transmission ProductsPower Transmission Products

Global ProductionGlobal Production

Broad Euro Product RangeBroad Euro Product Range

Global Markets Prefer Metric - Global Markets Prefer Metric - Easier to Source Spare PartsEasier to Source Spare Parts

P.T. International Corp.P.T. International Corp.

Mounted Bearings, Drive Products & Mounted Bearings, Drive Products & European Linear ComponentsEuropean Linear Components

Headquartered in Charlotte NCHeadquartered in Charlotte NC

80,000 Ft80,000 Ft² - 25,000 SKU’s² - 25,000 SKU’s

Global Manufacturing & Global Manufacturing & Sourcing Sourcing

Engineering and Design Engineering and Design CapabilitiesCapabilities

Sales Reps in US, Canada and Sales Reps in US, Canada and Europe Europe

ISO 9001:2008 CertifiedISO 9001:2008 Certified

P.T. International Corp.P.T. International Corp.

Inspection & WarehouseInspection & Warehouse

Bore Measurement Bore Measurement with Sylvac Digital with Sylvac Digital

InstrumentsInstrumentsGo/No Go Gauges, Go/No Go Gauges,

Thread Gauges & Thread Gauges & Taper Bore GaugesTaper Bore Gauges

PTI WarehousePTI WarehouseShaft Center HeightShaft Center Height

Mounted Roller BearingsMounted Roller BearingsSAFS/SDAF Split Pillow SAFS/SDAF Split Pillow Blocks thru 21” Shaft Blocks thru 21” Shaft Diameter and Multiple Seal Diameter and Multiple Seal OptionsOptions

SN/SD Split Plummer SN/SD Split Plummer Blocks thru 400mm Blocks thru 400mm

Bores in stockBores in stock

Standard Split Block ComponentsStandard Split Block Components

Split HousingSplit Housing Tapered Adapter Tapered Adapter Tapered Spherical Tapered Spherical

BearingBearing

LER Triple Labyrinth SealLER Triple Labyrinth Seal Fixing RingFixing Ring Lock NutLock Nut Lock Washer or ClipLock Washer or Clip

Optional ComponentsOptional Components

Hydraulic AdapterHydraulic Adapter PER Seals PER Seals w/ O-ringw/ O-ring

Taconite Taconite SealSeal

End CoverEnd Cover

Hydraulic Nut (Tool)Hydraulic Nut (Tool) LER-DC Dust Cover LER-DC Dust Cover PTV Seal for PERPTV Seal for PER

Lock Nut with Lock Nut with Mounting ScrewsMounting Screws

Introduction – Housing FeaturesIntroduction – Housing Features

Optional Temp. StripOptional Temp. StripOptional Oil Sight Glass Optional Oil Sight Glass

(cross-port drilled)(cross-port drilled)Large Lube Plugs/Drains & Face Large Lube Plugs/Drains & Face

Grooves for Dust Cover SealGrooves for Dust Cover Seal

Matched Cap & Base, Matched Cap & Base, & Large Pry Slots& Large Pry Slots

Offset Dowel for Offset Dowel for Proper AssemblyProper Assembly

Solid Base for Strength Solid Base for Strength and Oil Cross-portand Oil Cross-port

SAF Complete Unit NomenclatureSAF Complete Unit Nomenclature

SAF 22528 x 4-15/16 Includes:SAF 22528 x 4-15/16 Includes:

SAF 528 Housing, Seals, and Fixing RingSAF 528 Housing, Seals, and Fixing Ring

22228K C3 W33 Spherical Bearing22228K C3 W33 Spherical Bearing

K = Tapered Bore K = Tapered Bore

C3 = Internal Clearance C3 = Internal Clearance

W33 Lube groove on OD of BearingW33 Lube groove on OD of Bearing

SNW 28 x 4-15/16 Adapter (or H3128 x 4-15/16)SNW 28 x 4-15/16 Adapter (or H3128 x 4-15/16)

SNW = Sleeve, Nut, Washer – Inch Treads (H=Metric Thds.)SNW = Sleeve, Nut, Washer – Inch Treads (H=Metric Thds.)

SAF Housing NomenclatureSAF Housing Nomenclature

SAF – Cast Iron Housing (Std U.S.)SAF – Cast Iron Housing (Std U.S.)

SAFD – Ductile Housing (Std Canada)SAFD – Ductile Housing (Std Canada)

SAFS – Steel HousingSAFS – Steel Housing

FSAF – Standard Four Bolt BaseFSAF – Standard Four Bolt Base SAF 509 to SAF511 - 2 Bolt Base (Housing Only_SAF 509 to SAF511 - 2 Bolt Base (Housing Only_

SAF513 to SAF520 - 2 Bolt Base SAF513 to SAF520 - 2 Bolt Base

FSAF 513 to FSAF 520 - 4 Bolt BasesFSAF 513 to FSAF 520 - 4 Bolt Bases

SAF 522 & Up - 4 Bolt Bases onlySAF 522 & Up - 4 Bolt Bases only

Bearing Nomenclature: Last 2 digits x 5 = Bore in Bearing Nomenclature: Last 2 digits x 5 = Bore in mm.mm.

InstallationInstallationInstallation

1. Read Instruction Manual1. Read Instruction Manual

2. Tools Required: 2. Tools Required:

Feeler Gauges, Tape MeasureFeeler Gauges, Tape Measure

Spanner Wrench & Sledge or Hyd. Nut & Porta Pak & FittingsSpanner Wrench & Sledge or Hyd. Nut & Porta Pak & Fittings

Hoist, Wrenches, Lube Hoist, Wrenches, Lube

3.3. Document Installed DetailDocument Installed Detail

4.4. Install Fixed Bearings First.Install Fixed Bearings First.

InstallationShaft and Housing FitsShaft and Housing Fits

HousingHousing

ShaftShaft

1.1. SAF Blocks have SAF Blocks have Clearance fits, Typically Clearance fits, Typically H8 to allow the bearing to H8 to allow the bearing to float within the housing float within the housing for expansion.for expansion.

2.2. Each shaft requires 1 Each shaft requires 1 fixed bearing and 1 fixed bearing and 1 bearing to float to handle bearing to float to handle expansion.expansion.

3.3. Typical fit to the shaft is Typical fit to the shaft is 0.0005” interference per 0.0005” interference per inch of shaft diameter.inch of shaft diameter.

InstallationDocumentation - Measure & Record the Documentation - Measure & Record the Un-mounted Internal Bearing ClearanceUn-mounted Internal Bearing Clearance1. On free standing Spherical 1. On free standing Spherical Bearings, the clearance is at the top Bearings, the clearance is at the top between roller and outer race.between roller and outer race.

2. For Spherical Bearings hanging free on a 2. For Spherical Bearings hanging free on a shaft, the clearance is between the lowest shaft, the clearance is between the lowest roller and roller and innerinner racerace, but difficult to measure , but difficult to measure there. So carefully measure between the there. So carefully measure between the roller and outer race.roller and outer race.

3. Document measurements for future reference.3. Document measurements for future reference.

Mounting Concept: Mounting Concept: Tapered bore bearings mount to the Tapered bore bearings mount to the shaft with a matching tapered shaft with a matching tapered adapter. As the adapter nut is adapter. As the adapter nut is tightened, the bearing inner ring is tightened, the bearing inner ring is forced up the taper gripping the shaft. forced up the taper gripping the shaft. The inner ring is expanding due to The inner ring is expanding due to axial movement up the taper, which axial movement up the taper, which removes internal clearance from the removes internal clearance from the bearing. The result is a press fit onto bearing. The result is a press fit onto the shaft.the shaft.

Spanner Wrench Mounting Spanner Wrench Mounting 1.1. Hand Tighten Nut without LockwasherHand Tighten Nut without Lockwasher

2.2. Do not use hammer and drift. The drift Do not use hammer and drift. The drift will severely damage the nutwill severely damage the nut

3.3. Use a spanner wrench and hammer. Use a spanner wrench and hammer. This method will only work for smaller This method will only work for smaller shaft diameters.shaft diameters.

4.4. For larger shaft sizes, use Hydraulic Nut For larger shaft sizes, use Hydraulic Nut or Micro - mount screw method. or Micro - mount screw method.

Mounting with Hydraulic NutMounting with Hydraulic Nut

As an option the bearing can also be As an option the bearing can also be mounted with the help of a hydraulic nut. mounted with the help of a hydraulic nut. This is especially helpful for large diameter This is especially helpful for large diameter units. Pressure from the piston within the units. Pressure from the piston within the nut presses the bearing inner ring up the nut presses the bearing inner ring up the tapered adapter, expanding the inner ring tapered adapter, expanding the inner ring slightly. Axial movement of the bearing slightly. Axial movement of the bearing and clearance removed during the process and clearance removed during the process can be measured.can be measured.

As the final internal clearance is achieved, As the final internal clearance is achieved, release the pressure and remove the release the pressure and remove the Hydraulic nut, Replace it with the standard Hydraulic nut, Replace it with the standard nut and washer or locking clip.nut and washer or locking clip.

Mounting with Hydraulic NutMounting with Hydraulic Nut

Hydraulic Hydraulic NutNut

Tapered Tapered AdapterAdapter

Spherical Bering Spherical Bering with Tapered Borewith Tapered Bore

Piston of Hydraulic Nut Piston of Hydraulic Nut presses on Bearing presses on Bearing

Inner RingInner Ring

Hydraulic Pressure InletHydraulic Pressure Inlet

Mounting with Hydraulic Nut (cont’d)Mounting with Hydraulic Nut (cont’d)

Once the Hydraulic nut Once the Hydraulic nut has been removed, install has been removed, install the lockwasher and the lockwasher and tighten the standard nut. tighten the standard nut. Once tight, bend the most Once tight, bend the most convenient tang of the convenient tang of the washer into the slot on washer into the slot on the OD of the nut. This the OD of the nut. This acts as a lock washer. acts as a lock washer. Larger units use a locking Larger units use a locking clip. clip.

1. Re-install Nut 1. Re-install Nut & Lockwasher.& Lockwasher.

2. Tighten Nut.2. Tighten Nut.

3. Bend 3. Bend washer tang or washer tang or install locking install locking clip.clip.Do not drive the bearing further up the taper!Do not drive the bearing further up the taper!

Tips for Measuring the ClearanceTips for Measuring the Clearance

During installation of the bearing, which is likely During installation of the bearing, which is likely hanging on the shaft, it may be very helpful to hanging on the shaft, it may be very helpful to sling the bearing, shifting the internal clearance sling the bearing, shifting the internal clearance to the top where clearance is easier to measure. to the top where clearance is easier to measure. As a comparison, clearance measure on the As a comparison, clearance measure on the bottom should be the same as that measured on bottom should be the same as that measured on the top. Due to the weight of the rollers and the top. Due to the weight of the rollers and sliding the feeler gauge under the roller, sliding the feeler gauge under the roller, clearances tend to be a little more difficult and clearances tend to be a little more difficult and tend to read less than on the top. Practice will tend to read less than on the top. Practice will minimize the differences. Clearance can be minimize the differences. Clearance can be measured on each side for verification.measured on each side for verification.

Note: Do not roll the bearing over the feeler gauge in Note: Do not roll the bearing over the feeler gauge in an attempt to measure the clearance. This will not an attempt to measure the clearance. This will not yield an accurate result of clearance!yield an accurate result of clearance!

BEARINGAs a measurement suggestion and prior to each As a measurement suggestion and prior to each measurement, roll the bearing to center rollers measurement, roll the bearing to center rollers for measurement. A helpful tip is to lightly press for measurement. A helpful tip is to lightly press the roller inward with your thumb, i.e…. toward the roller inward with your thumb, i.e…. toward the center of the bearing, so it remains stable. the center of the bearing, so it remains stable. This also creates a consistent measurement This also creates a consistent measurement technique. Make sure the feeler gauge passes technique. Make sure the feeler gauge passes over the top of the roller and not the edge. A over the top of the roller and not the edge. A light saw-tooth action will help the feeler to pass. light saw-tooth action will help the feeler to pass. The roller is crowned so the measurement at the The roller is crowned so the measurement at the edge will be slightly larger than at the center. edge will be slightly larger than at the center.

More Tips when Measuring….More Tips when Measuring….

Measure clearance with feeler gauge over the center of the roller. Measure clearance with feeler gauge over the center of the roller. Document the measurements for order documentation.Document the measurements for order documentation.

Mounted Spherical Bearings ApplicationsMounted Spherical Bearings Applications

Mining Conveyors Mining Conveyors – Underground & – Underground &

OverlandOverland

Other Other Applications - Applications - Fans, Shaker Fans, Shaker

Screens, Screens, Industrial FansIndustrial Fans

Example: SAF 22528 x 4-15/16, Bearing 22228K C3 W33, (Bore 140mm)Example: SAF 22528 x 4-15/16, Bearing 22228K C3 W33, (Bore 140mm)

Example: Example:

SAF22528 x 4-15/16SAF22528 x 4-15/16

Bearing 22228 K C3Bearing 22228 K C3

Pressure: 339 psiPressure: 339 psi

Clearance Reduction Clearance Reduction 0.025” min.0.025” min.

Axial Drive Up: Axial Drive Up: 0.0317”0.0317”

Measure To Be Sure!Measure To Be Sure!

Installation

Tighten Oval Point Set Screws using a Tighten Oval Point Set Screws using a torque wrench pressing on the bearing torque wrench pressing on the bearing inner ring, removing the clearance as inner ring, removing the clearance as torque increases. Measuring clearance at torque increases. Measuring clearance at each torque interval. each torque interval.

Optional Mounting Method….Optional Mounting Method….

Adapter Nut with Mounting Screws Adapter Nut with Mounting Screws

BEARING

Housing, Seals and LubeHousing, Seals and Lube

Once the bearing has been properly tightened and the final running Once the bearing has been properly tightened and the final running clearance documented, housing assembly can begin.clearance documented, housing assembly can begin.

Position the seals so they align with the housing and lower the Position the seals so they align with the housing and lower the bearing into the housing. The seals should fit into the seal grooves.bearing into the housing. The seals should fit into the seal grooves.

Hand pack the seal grooves in the housing base with grease. Also Hand pack the seal grooves in the housing base with grease. Also hand pack the bearing between all of the rollers with grease once the hand pack the bearing between all of the rollers with grease once the bearing is resting in the housing base. The base should then be bearing is resting in the housing base. The base should then be filled 1/3 to 1/2 full as a guide. filled 1/3 to 1/2 full as a guide.

To assist final housing mounting, the fixing ring can be installed on To assist final housing mounting, the fixing ring can be installed on either side of the bearing to help with base bolt hole positioning. either side of the bearing to help with base bolt hole positioning.

One bearing must have the fixing ring, the other end should remain One bearing must have the fixing ring, the other end should remain free to float (no fixing ring). Position the floating bearing in the center free to float (no fixing ring). Position the floating bearing in the center of the bearing area so it can expand or contract as needed. of the bearing area so it can expand or contract as needed.

InstallationBearing Removal and Reuse?Bearing Removal and Reuse?

1.1. Visually inspect the Spherical Roller Bearing for Visually inspect the Spherical Roller Bearing for surface defects including brinelling, pits, staining, surface defects including brinelling, pits, staining, or graying of the races. See included defect chart.or graying of the races. See included defect chart.

2.2. The Housing cost is usually less than the SRB, The Housing cost is usually less than the SRB, and seal grooves wear, inspect before re-use.and seal grooves wear, inspect before re-use.

3. Always replace the Adapter and Seals.3. Always replace the Adapter and Seals.

4. In general, it is not advisable to re-use bearings.4. In general, it is not advisable to re-use bearings.

BEARING

Introduction – Housing FeaturesIntroduction – Housing Features

Optional Temp. StripOptional Temp. StripOptional Oil Sight Glass Optional Oil Sight Glass

(cross-port drilled)(cross-port drilled)

Large Lube Plugs/Drains & Face Large Lube Plugs/Drains & Face Grooves for Dust Cover SealGrooves for Dust Cover Seal

Matched Cap & Base, Matched Cap & Base, & Large Pry Slots& Large Pry Slots

Offset Dowel for Offset Dowel for Proper AssemblyProper Assembly

Solid Base for Strength Solid Base for Strength and Oil Cross-portand Oil Cross-port

BEARING

Mounted Roller Bearings AccessoriesMounted Roller Bearings Accessories

Auxiliary SealsAuxiliary Seals

O-ring Labyrinth SealsO-ring Labyrinth Seals

End CoversEnd Covers

Stabilizing Rings & Spanner WrenchesStabilizing Rings & Spanner Wrenches

BEARING

Mounted Spherical Bearing AccessoriesMounted Spherical Bearing Accessories

Hydraulic Adapter Hydraulic Adapter Sleeves for Sleeves for Assisted Bearing Assisted Bearing RemovalRemoval

Hydraulic Nuts Hydraulic Nuts for Bearing for Bearing InstallationInstallation

SAF, SDAF & SAF, SDAF & Metric Split BlocksMetric Split Blocks

Installation & Installation & General TrainingGeneral Training

P.T. International Corp.P.T. International Corp.

InstallationBearing AutopsyBearing Autopsy

1.1. Bearings are a systems flight Bearings are a systems flight recorder. Wear patterns on the recorder. Wear patterns on the races tell a story and provide races tell a story and provide helpful application information.helpful application information.

2.2. When the shaft rotates, the history When the shaft rotates, the history builds on the Outer race. builds on the Outer race.

3.3. Careful inspection review of load Careful inspection review of load zone, wear pattern, surface marks zone, wear pattern, surface marks and discolorations will guide the and discolorations will guide the user as to why the failure occurred.user as to why the failure occurred.

Part: Outer ring of a spherical roller bearing

Symptom: Peeling occurs near the shoulder of the raceway over the entire circumference and on the center of the rolling surfaces below below

Cause: Poor lubrication

InstallationBearing Autopsy – Typical Problems 1Bearing Autopsy – Typical Problems 1

Part: Inner ring of a spherical roller bearing

Symptom: Creep accompanied by scoring of bore surface

Cause: Insufficient interference

Part: Outer ring of a spherical roller bearing

Symptom: Creep occurs over entire circumference of outside surface

Cause: Loose fit between outer ring and housing

InstallationBearing Autopsy – Typical Problems 2Bearing Autopsy – Typical Problems 2

Part: Outer ring of a spherical roller bearing

Symptom: Wear having a wavy or concave-and-convex texture on loaded side of raceway surface

Cause: Entry of debris under repeated vibration while stationary

Part: Outer ring of a Cylindrical bearing

Symptom: False brinelling occurs on the raceway

Cause: Vibration from an external source while stationary

InstallationBearing Autopsy – Typical Problems 3 Bearing Autopsy – Typical Problems 3

Part: Inner ring of an angular contact ball bearing

Symptom: Raceway discoloration, melting occurs at ball pitch intervals

Cause: Excessive preload

Part: Outer ring in Photo

Symptom: Raceway discoloration, melting occurs at ball pitch intervals

Cause: Excessive preload

InstallationBearing Autopsy – Typical Problems 4Bearing Autopsy – Typical Problems 4

Part: Inner ring of a spherical roller bearing

Symptom: Flaking of only one raceway over its entire circumference

Cause: Excessive axial load

Part: Outer ring of Inner ring on Right

Symptom: Flaking of only one raceway over its entire circumference

Cause: Excessive axial load

After Hours Service 7-24

Toll Free 1-800-763-4434

www.ptintl.com

Thank You!