SKF IR — existing illustrative view of the inner-ring family
SKF IR 20X25X17 — our own dimensional diagram d F B

IR 20x25x17 Inner ring SKF - 1 pcs.

SKF
zł48.00 Grosszł39.02 Net
zł34.34 Net zł42.24 Gross price with code PROMO
Lowest price since sales began before the promotion: zł39.02 Net zł48.00 Gross

Inner ring SKF IR 20X25X17. Dimensions d×F×B: 20×25×17 mm. Variant without lubrication hole, hardened and ground. Sales unit: 1 pcs.

Dispatch within:
2 days
Shipping cost incl. VAT:
from zł8.61
Availability:
Available
Weight:
0,023 kg
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SKF IR — existing illustrative view of the inner-ring family

Inner ring SKF IR 20X25X17

SKF IR-series needle roller bearing inner ring, with dimensions d × F × B: 20 × 25 × 17 mm.

Design

The ring is hardened and ground. The raceway has a precision-ground surface and lead-in chamfers on both sides. This variant has no lubrication hole.

Sales unit

One sales unit includes 1 inner ring SKF IR 20X25X17.

SKF IR 20X25X17 — our own dimensional diagram d F B

Catalogue dimensions and tolerances

d — bore diameter: 20 mm.

F — raceway diameter (outside diameter): 25 mm.

B — ring width: 17 mm.

r, r₁,₂ min — minimum chamfer dimension: 0,3 mm.

Δdmp — mean bore diameter deviations: upper 0 mm; lower -0,01 mm.

ΔFmp — mean raceway diameter deviations: upper 0 mm; lower -0,012 mm.

ΔBs — width deviations: upper 0 mm; lower -0,12 mm.

For the bore and width, the SKF catalogue specifies the Normal class according to ISO 492. The raceway diameter has the separate deviations stated above. The product illustration shows the SKF ring family; our own catalogue diagram is not a production drawing.

Questions and answers

Which SKF ring variant does this offer include?

The offer is for IR 20X25X17 SKF from the IR series. Bore diameter is 20 mm, raceway diameter 25 mm and width 17 mm.

What tolerances does the catalogue state for this size?

Mean bore diameter deviations are 0 / -0,01 mm, and mean raceway diameter deviations 0 / -0,012 mm. Width deviations are 0 / -0,12 mm.

Does this ring have a lubrication hole?

No. The offer is for the variant without suffix IS1, which SKF uses to designate a version with a lubrication hole.

What does one sales unit include?

One sales unit includes 1 inner ring SKF IR 20X25X17.

  • Brand
  • Reference
    SKY385458
  • Waga
    0,023 kg
  • In stock
    7 Items

  • Sales unit
    1 pc
  • Component type
    Needle roller bearing inner ring
  • Width B
    17 mm
  • Manufacturer
    SKF
  • Bore diameter d
    20 mm
  • Manufacturer designation
    IR 20X25X17
  • Series
    IR
  • Lubrication hole
    None; variant without IS1 suffix
  • Treatment
    Hardening
  • Country of origin according to supplier
    Germany
  • Raceway diameter F
    25 mm
  • Chamfer dimension r, r₁,₂ min
    0,3 mm
  • Deviations of mean bore diameter Δdmp
    0 / -0,01 mm
  • Deviations of mean raceway diameter ΔFmp
    0 / -0,012 mm
  • Width deviations ΔBs
    0 / -0,12 mm
  • Bore and width tolerance class
    Normal according to ISO 492; SKF catalogue values
  • Raceway finish
    Precision grinding
  • Raceway chamfer
    Lead-in chamfers on both sides

Workplace safety warnings — in accordance with Regulation (EU) 2023/988 on general product safety:
1. Eye protection:
– Always wear safety goggles or a face shield to protect your eyes from sparks, particles and metal fragments.
2. Hearing protection:
– When working in a noisy environment, use ear defenders or earplugs to prevent hearing damage.
3. Respiratory protection:
– When working in dusty surroundings or in the presence of fumes, wear a filtering mask or an appropriate respirator.
– Ensure proper ventilation of the workstation.
4. Hand and skin safety:
– Use protective gloves that protect against mechanical injuries and chemicals.
– Where necessary, use protective creams to prevent irritation and dry skin.
5. Work clothing:
– Work in protective clothing resistant to sparks and splashes.
– Avoid loose clothing, jewellery and loose hair near machinery.
6. Fire risk:
– Keep the workstation free of flammable materials (e.g. paper, fabrics and chemicals).
– Keep a serviceable fire extinguisher close at hand and know how to use it.
7. Electrical hazards:
– Check the condition of cables and electrical equipment before use.
– Do not use electrical devices in damp conditions.
– Disconnect equipment from the power supply during maintenance or repairs.
8. Use of machinery and tools:
– Regularly inspect the technical condition of machines and tools.
– Use equipment in accordance with the manufacturer's instructions.
– Blades and tools should be maintained regularly and kept in good condition.
– Machines should be fitted with appropriate guards and protective devices.
9. Handling materials:
– Use handling equipment to move heavy components.
– Lift and carry using ergonomic practices to avoid injury.
10. Working with chemicals:
– Store chemicals in labelled, safe containers.
– Use substances in accordance with the manufacturer's instructions and occupational health and safety rules.
– Ensure air circulation when using chemicals.
Other important rules:
– Keep the workstation clean and tidy.
– Ensure adequate lighting in the working area.
– Provide occupational health and safety training.
– Carry out regular safety audits and comply with current regulations.

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