KRV40XLLH/3AS Needle roller follower NTN 18x40x20 mm - 1 pcs.
Needle roller follower KRV40XLLH/3AS NTN, 18×40×20 mm. Concentric stud, thread M18×1,5. Sales unit: 1 pcs.

Needle roller follower KRV40XLLH/3AS NTN
Needle roller follower with concentric stud, dimensions d1 × D × C: 18 × 40 × 20 mm. Total length B1 is 58 mm.
Design
Full-complement needle roller design, without cage. Sealing: double-sided plastic, contact. The outer ring profile is cylindrical.
Sales unit
One sales unit contains 1 roller KRV40XLLH/3AS NTN.

Catalogue dimensions and tolerances
d1 — stud diameter: 18 mm; deviations 0 / -0,018 mm.
D — outside diameter: 40 mm; tolerance class JIS Class 0.
B — total width: 21,5 mm.
C — outer ring width: 20 mm.
B1 — total length: 58 mm.
B2 — stud length: 36,5 mm.
G — thread: M18×1,5.
G1 — thread length: 19 mm.
Catalogue parameters
Dynamic load rating Cr: 19400 N. Static load rating C0r: 42000 N. Limiting speed with grease lubrication: 4500 rev./min.
The existing illustration is indicative and shows the KRV family. The offer covers variant KRV40XLLH/3AS. The diagram shows catalogue dimensions and is not a production drawing.
Questions and answers
Which variant does the offer cover?
The offer covers roller KRV40XLLH/3AS NTN with concentric stud and cylindrical outer ring profile.
What are the main dimensions of this roller?
Stud diameter d1 is 18 mm, outside diameter D 40 mm, and outer ring width C 20 mm. Total length B1 is 58 mm.
What thread does the stud have?
The stud thread G is designated M18×1,5. Thread length G1 is 19 mm.
What does one sales unit contain?
One sales unit contains 1 roller KRV40XLLH/3AS NTN.
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Sales unit1 pc
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DesignWith concentric stud
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Component typeStud-type needle roller
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Outside diameter D40 mm
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Stud diameter d118 mm
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ManufacturerNTN
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Manufacturer designationKRV40XLLH/3AS
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SeriesKRV
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Country of origin according to supplierJapan
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CageNone
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SealPlastic contact seals on both sides
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Outer ring profileCylindrical
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Overall width B21,5 mm
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Outer ring width C20 mm
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Dynamic load rating Cr19400 N
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Static load rating C0r42000 N
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Limiting speed with grease lubrication4500 rpm
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Stud diameter deviations d10 / -0,018 mm
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Overall length B158 mm
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Stud length B236,5 mm
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Thread GM18×1,5
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Thread length G119 mm
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Diameter tolerance class DJIS Class 0
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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