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ZBR Series Eccentric Lock Flange Block

Item #100000375
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Product details

  • 2 7/16" Shaft, 4 19/32" Bolt Hole Spacing, Heavy Contact Seals, Eccentric Collar, Regreasable, Non-Expansion


  • Easy bearing clearance: can be field adjusted to meet application needs
  • Mounting to suit the load and installation requirements
  • Shaft ready: prelubricated with standard grease for normal operation; other lubricants available for special conditions
  • Fully self-aligning: spherical roller bearing to accommodate operational and installation misalignment
  • Rugged housing: standard material – cast iron, steel or ductile iron available on request
  • Carburized raceways: case-carburized inner races provide a hard, fatigue-resistant surface and a tough, crack-resistant ductile core
  • Interchangeable seals: three types of seals to match the application requirements: Z seal, for the broad range of normal operating conditions; K seal, for dusty, dirty conditions; and M seal, for protection against liquid contamination
  • For extra protection under severe conditions, auxiliary caps are also available
  • Spherical bearing design accomodates continual misalignment.
  • Collar is larger, thicker, and heavier to provide increased surface area contact with shaft.
  • Threaded cover and microlock design allows bearing clearance adjustment, off-the-shelf units to meet special requirements.
  • Wedges tight during operation, even if setscrews loosen.
  • Carburized (case-hardened) inner ring resists fracturing, even under heavy loads
  • Units are completely preassembled, preadjusted, greased, sealed, and ready to mount.
  • Grips tight, even with undersized shafting.


Inch/Metric Inch
Flange Type 4-Bolt Flange
Piloted Flange
Shaft Dia. 2 7/16 in
Mounted Unit Duty Heavy-Duty
Bearing Type Spherical Roller Bearing
Locking Device Eccentric Locking Collar
Housing Length 7 5/8 in
Bolt Hole Spacing 4 19/32 in
Bolt Circle Dia. 6 1/2 in
Bearing Design Non-Expansion
End Type Open End
Seal Type Heavy Contact Seals
Housing Construction 1 Piece
Housing Material Cast Iron
Lubrication Relubricatable
Length Through Bore 3 21/32 in
Flange Thickness 5/8 in
Collar O.D. 3 9/16 in
Bolt Size 1/2 in
Misalignment Range ±1 1/2°
Temperature Range [MIN] -40 °F
Collar Extension 1 1/64 in
Size Code 8
Temperature Range [MAX] 250 °F
Overall Width 5 11/32 in
Housing Height 7 5/8 in
Style 4-Bolt Piloted Flange
Duty Heavy-Duty
Weight 15.0 LB
EAN or UPC 698210907198

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