| الاسم التجاري: | GQZ /OEM |
| رقم الموديل: | إم آر 88 إن + إم آي 72 إن |
| الـ MOQ: | 1 قطعة |
| السعر: | USD 80 to 100 |
| موعد التسليم: | 3-5 أيام عمل |
| شروط الدفع: | / تي تي، ويسترن يونيون، موني جرام |
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*Send inquiry to get latest factory price and technical datasheet for MR88N+MI72N needle roller bearing.
| Item | Spec |
|---|---|
| Complete Model | MR88N + MI72N |
| Bore d | 114.3 mm (4.5") |
| Outer Diameter D | 177.8 mm (7") |
| Width | 63.5 mm |
| Type | Heavy Duty Caged Needle Roller Bearing |
| Structure | Separable (Outer roller unit + separate inner ring) |
| Material | 52100 Chrome bearing steel |
| Dynamic load Cr | 70200 lb ≈ 312 kN |
| Static load C0r | 169800 lb ≈ 755 kN |
| Feature | Outer ring with centralized lubrication groove & oil hole |
*Contact our technical team to confirm compatibility and bearing assembly suggestions.
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Q1: Are MR88N and MI72N two independent usable bearings?
A1: No. MR88N is only the outer ring & needle roller assembly without inner race; MI72N is the matched inner ring. They must be used together as one complete bearing unit. Separate parts cannot operate normally.
Q2: What are the dimensions of MR88N+MI72N?
A2: Bore 114.3 mm (4.5"), Outer Diameter 177.8 mm (7"), Width 63.5 mm (2.5").
Q3: Can this bearing work at high speed?
A3: It is designed for heavy radial load, recommended for low and medium speed operation.
Q4: Does this bearing support re-lubrication?
A4: Yes. The outer ring has built-in lubrication groove and oil hole for periodic grease replenishment.
Q5: Is interchangeability available with McGill original MR88N/MI72N?
A5: Yes, our GQZ bearing maintains standard inch dimensions for direct replacement.
*Place bulk orders for MR series inch needle bearings, enjoy sufficient stock and fast delivery.