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Oct . 03, 2025 12:55 Back to list

6415-M High Quality Deep Groove Ball Bearing 76X190X45 C3?


6415-M Deep Groove Ball Bearing: shop-floor notes, specs, and where it truly shines

If you’re chasing a steady, low-noise workhorse in the 190 mm OD class, the 6415-M High Quality Deep Groove Ball Bearing 76X190X45 has been popping up in my inbox a lot. It’s built in the Bearing Industry Mass Entrepreneurship Park on Beihuan Road, Linxi County (Xingtai City, Hebei)—a cluster that, frankly, has become a quiet powerhouse for consistent quality at sane lead times. And, to be honest, that “M” brass cage matters more than people admit when loads spike or heat builds in real-world duty.

6415-M High Quality Deep Groove Ball Bearing 76X190X45 C3?

Trend-wise, the market’s moving toward slightly customized fits—non-standard bores, pre-greasing, and verified vibration grades—without waiting 8–10 weeks. This model leans into that: precise grinding, predictable vibration, and options like C3 clearance for hotter environments. Many customers say the running sound is “quieter than expected,” which aligns with the measured V2 vibration I’ve seen.

Key specifications

Bore (d) ≈ 76 mm (custom; real-world use may vary)
Outside diameter (D) 190 mm
Width (B) 45 mm
Cage Machined brass (M)
Material GCr15 / 100Cr6, vacuum-degassed
Clearance C0 or C3; others on request
Precision grade ISO P0/P6
Dynamic load (Cr) ≈ 97 kN
Static load (Cor) ≈ 66 kN
Limiting speed Grease ≈ 4,500 rpm; Oil ≈ 5,500 rpm
Vibration grade V2 (≈ production default)
6415-M High Quality Deep Groove Ball Bearing 76X190X45 C3?

How it’s made (quick process flow)

  • Materials: GCr15 rings/balls; brass cage billet.
  • Heat treatment: controlled hardening/tempering for core toughness.
  • Grinding & superfinishing: iso-roundness, low Ra for quieter run.
  • Assembly & clearance setting: C0/C3 with gauged preload feel.
  • Testing: dimensional per ISO 492; load ratings per ISO 76/281; vibration per ISO 15242.
  • Service life: L10h often ≈ 30,000 h at Fr ≈ 0.12Cr and ~1,800 rpm (calculated; field conditions vary).
6415-M High Quality Deep Groove Ball Bearing 76X190X45 C3?

Where it’s used and why it works

Pumps, electric motors, conveyors, gearboxes, cooling fans, and ag equipment. The brass cage on the 6415-M High Quality Deep Groove Ball Bearing 76X190X45 resists fretting and keeps its cool under thermal swings—surprisingly forgiving in blower drives that cycle.

6415-M High Quality Deep Groove Ball Bearing 76X190X45 C3?

Vendor snapshot (informal comparison)

Vendor Cage QC / Standards Lead time MOQ Notes
BTZ (Linxi, Xingtai) Brass M ISO 9001; ISO 492/281/76 alignment; 100% vibration check ≈ 7–15 days 2 pcs Good balance of price/performance
Global Brand A Steel/Brass (options) ISO 9001; P6 readily stocked ≈ 30–45 days 1 pc Premium pricing
Generic Import Mixed Basic COC ≈ 3–7 days 10 pcs Watch tolerances and grease fill
6415-M High Quality Deep Groove Ball Bearing 76X190X45 C3?

Customization and feedback

  • Non-standard bore (like 76 mm), special fits (k5/m5), and C3/C4 clearances.
  • Grease choices: NLGI-2 (e.g., Mobil XHP 222, SKF LGEP 2), or food-grade on request.
  • Shields/seals: Open, 2Z, or 2RS; black-oxide, anti-corrosion coatings; laser marking.
  • Packing: export-grade cartons, barcode, traceable lot certs.

Customer notes? “Lower hum on startup,” and, “holds up in hot fan housings.” That tracks with the brass cage and C3 clearance option on the 6415-M High Quality Deep Groove Ball Bearing 76X190X45.

Quick case study

A cement plant swapped legacy 6415 steel-cage bearings for 6415-M High Quality Deep Groove Ball Bearing 76X190X45 on a 55 kW ID fan (≈1,500 rpm). Spec: C3 clearance, Mobil XHP 222, H7/g6 fits. Result after 11 months: vibration dropped ~18% (V2 band), bearing life extended from ~14 to ~18 months—about 28% uplift, with cooler running by ~6–8°C.

6415-M High Quality Deep Groove Ball Bearing 76X190X45 C3?

Certifications and standards

Factory: ISO 9001:2015. Product tolerances checked to ISO 492; load ratings per ISO 76/281; vibration tested per ISO 15242. Materials align with DIN/GB bearing steel norms. In practice, that means predictable fit-up and life calculations you can defend at the maintenance meeting.

Authoritative citations

  1. ISO 281: Rolling bearings — Dynamic load ratings and rating life.
  2. ISO 492: Rolling bearings — Radial bearings — Tolerances.
  3. ISO 76: Rolling bearings — Static load ratings.
  4. ISO 15242-1: Rolling bearings — Measuring methods for vibration.
  5. DIN 625-1: Rolling bearings — Deep groove ball bearings.
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