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Home>Products>PTFE Backup RingsPTFE Backup>BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup

  • BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup
  • BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup

BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup MODELS

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BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup

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PTFE Backup RingsPTFE Backup

BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup SPECIFICATIONS

  • Seal
  • 31411705
  • Oil Seals
  • 0.75 Inch / 19.05 Millimeter
  • 21 Inch / 533.4 Millimeter
  • Nitrile
  • Stainless Steel Garter
  • Oil Seal
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BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup Systems

  • 9.424
  • Inch
  • 0.75 Inch / 19.05 Millimeter
  • Yes
  • Lip
  • Large / With Inner Case / Heavy Duty / With Spring Lock
  • 19 Inch / 482.6 Millimeter
  • 19 Shaft Dia
  • HDS1
  • Steel
  • 4.278
  • C_R_HDS1
  • Solid
  • 4016.93.50.20
  • 1900540

BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup Technology

Type of SealOil Seal
Other FeaturesLarge / With Inner C
Housing Bore16.625 Inch / 422.27
Actual Width0.875 Inch / 22.225
Harmonized Tariff Code4016.93.50.20
Lip MaterialNitrile
Seal Design CodeHDSA2
Solid or Split SealSolid
UNSPSC31411705
Spring LoadedYes
Nominal Width0.875 Inch / 22.225
Shaft Diameter15.375 Inch / 390.52
Manufacturer NameSKF
Inch - MetricInch
Keyword StringLip
Number of Sealing Lips2
CategoryOil Seals
Weight / LBS7.01
Long Description15-3/8 Shaft Dia
Generic Design CodeC_R_HDSA2

 

SRI-21X2.6X1 B 21X26.2X1 PTFE Backup RingsPTFE BackupUNSPSC:31411705; Housing Bore:15.5 Inch / 393.7 Mi; Generic Design Code:C_R_HDSA1; Actual Width:1 Inch / 25.4 Millim; Type of Seal:Oil Seal; Manufacturer Item Number:1400925; Shaft Diameter:14 Inch / 355.6 Mill; Category:Oil Seals; Lip Retainer:Stainless Steel Gart; Noun:Seal; Other Features:Large /
MS28774-211 B 21.01X27.06X1.3 PTFE Backup RingsPTFE BackupSpring Loaded:No; Lip Retainer:None; Harmonized Tariff Code:4016.93.50.20; Seal Design Code:HDS7; Solid or Split Seal:Solid; Inch - Metric:Metric; Type of Seal:Oil Seal; Housing Bore:8.74 Inch / 222 Mill; Manufacturer Name:SKF; Category:Oil Seals; Nominal Width:0.63 Inch / 16 Milli; Manufacturer Ite
B 21X26X1.5 B 21X26X1.5 PTFE Backup RingsPTFE BackupHarmonized Tariff Code:4016.93.50.20; Nominal Width:0.75 Inch / 19.05 Mi; Noun:Seal; Spring Loaded:Yes; Seal Design Code:HDS1; Type of Seal:Oil Seal; Housing Bore:15.75 Inch / 400.05; Keyword String:Lip; Actual Width:0.75 Inch / 19.05 Mi; Shaft Diameter:14 Inch / 355.6 Mill; Manufacturer Item Number
MS27595-019 B 21.08X23.77X1.24 PTFE Backup RingsPTFE BackupSolid or Split Seal:Split; Manufacturer Name:SKF; Keyword String:Lip; Shaft Diameter:22.814 Inch / 579.47; Harmonized Tariff Code:4016.93.50.20; Seal Design Code:HS8; Weight / LBS:4.283; Generic Design Code:C_R_HS8; Weight / Kilogram:1.94; Category:Oil Seals; Inch - Metric:Inch; UNSPSC:31411705; Nou
MS27595-211 B 21.03X27.03X1.25 PTFE Backup RingsPTFE BackupHousing Bore:27.5 Inch / 698.5 Mi; Lip Material:Nitrile; Noun:Seal; Category:Oil Seals; Weight / LBS:11.837; Seal Design Code:HDS1; Lip Retainer:Stainless Steel Gart; Actual Width:0.875 Inch / 22.225; Inch - Metric:Inch; Keyword String:Lip; Case Construction:Steel; Spring Loaded:Yes; Long Descriptio
P21BR B 21X25X1.25 PTFE Backup RingsPTFE BackupCase Construction:Steel; UNSPSC:31411705; Solid or Split Seal:Solid; Actual Width:0.875 Inch / 22.225; Harmonized Tariff Code:4016.93.50.20; Noun:Seal; Nominal Width:0.875 Inch / 22.225; Manufacturer Name:SKF; Shaft Diameter:22.375 Inch / 568.32; Lip Retainer:Stainless Steel Gart; Category:Oil Seals
PTFE BACKUP RING B 21X26.1X1.8 PTFE Backup RingsPTFE BackupHousing Bore:35.5 Inch / 901.7 Mi; Seal Design Code:HS7; Manufacturer Item Number:3350557; Solid or Split Seal:Split; Other Features:Large / 1 Butt Joint; Category:Oil Seals; Nominal Width:0.813 Inch / 20.65 M; Manufacturer Name:SKF; UNSPSC:31411705; Shaft Diameter:33.5 Inch / 850.9 Mi; Noun:Seal; S
PTFE BACKUP RING B 21X26.2X1.25 PTFE Backup RingsPTFE BackupNoun:Seal; Weight / LBS:0.294; UNSPSC:31411705; Manufacturer Name:SKF; Lip Material:Polyacrylate; Actual Width:0.472 Inch / 11.989; Manufacturer Item Number:23484; Long Description:2.362 Shaft Dia; Category:Oil Seals; Solid or Split Seal:Solid; Weight / Kilogram:0.133; Other Features:Internal and Ex

 

 

BACKUP RING PTFE B 20.7X26.7X.85 PTFE Backup RingsPTFE Backup Video

 

Backup Rings

A backup ring is a ring of hard, extrusion resistant material such as high-durometer Nitrile, Viton® (FKM), or PTFE. A backup ring is designed to fit between ...

back-up rings - PTFE Competence Center

Back-up rings are manufactured from extrusion resistant material as protection and support elements, normally with a rectangular cross-section.

Things to Know about PTFE Backup Rings and Applications

Jul 17, 2014 — PTFE backup rings make the usage of o-rings for static and dynamic applications in hydraulic and pneumatic systems more efficient.

Backup Rings - PTFE - Freudenberg Sealing Technologies

The PTFE backup rings offer extrusion resistance to a paired o-ring to increase pressure handling capabilities. Find out more about this product and more.

Backup O-Rings - PTFE Rings - Hallite - Hallite Seals

Hallite PME back-up rings are uncut back-up rings made from specific conditioned PTFE to be assembled into one-piece external grooves.

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PTFE Backup RingsPTFE Backup CATEGORIES

  • Bellows Seals
  • Box Kits Seals
  • Bronze Backup Rings
  • Bronze Filled Guide Rings
  • Carbon Backup Rings
  • Carbon Fiber Guide Rings
  • Carbon Graphite Guide Rings
  • Cushion Seals
  • EKF Guide Rings
  • Fey Laminar Rings
  • Flange Seal
  • GLASS BACKUP RING
  • Glass Moly Guide Rings
  • Hat Packing Seals
  • Metal DU Bushing Guide Rings
  • NBR BACKUP RING
  • NBR Compact Seal
  • Nylon Backup Rings
  • Nylon Guide Band Guide Rings
  • Phenolic Guide Band Guide Rings
  • Polyester Backup Rings
  • Polyurethane Backup Rings
  • PTFE Backup RingsPTFE Backup
  • PTFE Bulk Rings
  • Square Rings
  • TDUO Seals
  • Turcon Guide Guide Rings
  • V Seals
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  • Home
  • Stock Categories
    • Bellows Seals
    • Box Kits Seals
    • Bronze Backup Rings
    • Bronze Filled Guide Rings
    • Carbon Backup Rings
    • Carbon Fiber Guide Rings
    • Carbon Graphite Guide Rings
    • Cushion Seals
    • EKF Guide Rings
    • Fey Laminar Rings
    • Flange Seal
    • GLASS BACKUP RING
    • Glass Moly Guide Rings
    • Hat Packing Seals
    • Metal DU Bushing Guide Rings
    • NBR BACKUP RING
    • NBR Compact Seal
    • Nylon Backup Rings
    • Nylon Guide Band Guide Rings
    • Phenolic Guide Band Guide Rings
    • Polyester Backup Rings
    • Polyurethane Backup Rings
    • PTFE Backup RingsPTFE Backup
    • PTFE Bulk Rings
    • Square Rings
    • TDUO Seals
    • Turcon Guide Guide Rings
    • V Seals
  • Technical Articles
  • Bellows Seals
  • Box Kits Seals
  • Bronze Backup Rings
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