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Nov . 06, 2025 12:45 Back to list

Cylindrical Roller Bearing Supplier | High Load, In-Stock

A Practical Guide to Cylindrical Roller Bearing performance in real machines

If you spend time around gearboxes, conveyors, and big electric motors, you know the quiet heroes are the bearings. Lately, the talk in factories and machine shops has been about higher speeds, stricter energy targets, and longer intervals between line stops. In that context, a well-made Cylindrical Roller Bearing is still a workhorse—high radial load, decent speed capability, and, in some variants, a forgiving nature during installation. Actually, ARY’s line out of XIHUAN Road, Hexi Town, Linxi County, Hebei, China has been catching attention—partly for availability, partly for a slightly different twist: a self-aligning option that tolerates ≈1.5°–3° of misalignment. Not common for classic cylindricals, but handy when you’re fighting shaft deflection.

Cylindrical Roller Bearing Supplier | High Load, In-Stock
Image: production-ready Cylindrical Roller Bearing assembly (factory photo, ARY)

Where it fits in—applications and trends

We see these used in electric motors, industrial gear units, compressors, paper and steel lines, rail axleboxes, wind yaw drives—you name it. The trend? Higher power density and lower friction grease, plus condition monitoring baked in. Many customers say they’re stretching service intervals by 20–30% just by pairing a tight-tolerance Cylindrical Roller Bearing with a better grease and smart relube schedule.

Typical specs (representative)

ParameterValue (≈, real-world use may vary)
Bore (d)20–260 mm
Outer diameter (D)47–480 mm
Width (B)12–120 mm
Tolerance classISO 492 Normal/P6/P5
MaterialGCr15 / 100Cr6 rings & rollers; brass/steel cages
ClearanceC2, C3, C4, C5
Misalignment optionSelf-aligning design: 1.5°–3°
Temp range-20 to 120 °C (grease-dependent)
Dynamic capacityup to ≈ 1,100 kN

How it’s made (quick shop-floor flow)

  • Materials: bearing steel per ASTM A485; traceability lot by lot.
  • Heat treatment: through hardening, calibrated to residual austenite spec.
  • Grinding & superfinishing: raceways to Ra ≈ 0.03–0.05 μm.
  • Cage: pressed steel or machined brass; riveted inspection 100%.
  • Assembly & preload checks; optional low-noise grease fill.
  • Testing: ISO 492 geometry, ISO 15242 vibration, ISO 281 life rating, ISO 76 static load.

Service life? Using L10h per ISO 281, we’ve seen >40,000 h in clean electric-motor duty; heavy mill stands will be less forgiving. To be honest, contamination control matters more than many admit.

Customization and standards

Options include special C3/C4 clearance, black-oxide or phosphate coating, nitrided cages, RS/2RS seals, food-grade grease, and paired arrangements. Certifications: ISO 9001; many lots also support IATF 16949 requirements for automotive lines. Documentation can include PPAP and RoHS/REACH upon request.

Vendor snapshot (field-notes style)

Vendor Strengths (informal) Lead Time Certs Price
ARY (Linxi, Hebei) Flexible specs, misalignment option, solid stock 2–5 wks ISO 9001, IATF support $$
SKF/NSK/Timken Top precision, deep app support stock–12 wks IATF 16949 $$$–$$$$
Regional trader Fast delivery, mixed origins 1–2 wks varies $–$$$

Field results (quick case notes)

  • Steel mill gearbox: swapped to misalignment-tolerant design; vibration dropped ≈18%, uptime +6 weeks between shutdowns.
  • 50–200 kW motors: C3 clearance, low-noise grease; sound level down ~2.1 dB(A), L10h modeled +22%.

Customer feedback: “We abused it during alignment, and it didn’t complain.” That’s not a spec, but you get the idea.

Notes on alignment quirk

The ARY description includes a two-raceway inner and sphered outer raceway—essentially a self-aligning twist inside a Cylindrical Roller Bearing family. It’s a practical fix for mounting errors or shaft bending when life must go on.

Citations

  1. ISO 281: Rolling bearings — Dynamic load ratings and rating life. https://www.iso.org/standard/76119.html
  2. ISO 492: Rolling bearings — Radial bearings — Tolerances. https://www.iso.org/standard/73012.html
  3. ISO 15242: Rolling bearings — Measuring vibration. https://www.iso.org/standard/41286.html
  4. ISO 76: Rolling bearings — Static load ratings. https://www.iso.org/standard/20470.html
  5. ASTM A485: Standard Specification for High-Hardness Bearing Steel. https://www.astm.org/a0485_a0485m-17.html
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