Wuxi Guangqiang Bearing Trade Co.,Ltd
| Delivery Time | 3-5 working days |
| Material | GCr15 Chrome Bearing Steel |
| Structure | Separable (Outer roller unit + separate inner ring) |
| Seals type | OPEN |
| Packaging Details | in individual packing box |
| Type | Heavy Duty Caged Needle Roller Bearing |
| Number of row | Single Row |
| Payment Terms | T/T,, |
| Appliion | Motors, Fans, Conveyors, Agricultural Machinery, General Industrial Equipment |
| Supply Ability | 100000 Sets per month |
| Outer diameter（D） | 177.8mm |
| Certifiion | ISO9001:2015 |
| Width（B） | 63.5mm |
| Bearing Model | MR88N+MI72N |
| Inner diameter（d） | 114.3mm |
| Model Number | MR88N+MI72N |
| Place of Origin | China |
| Brand Name | GQZ /OEM |
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Product Specification
| Delivery Time | 3-5 working days | Material | GCr15 Chrome Bearing Steel |
| Structure | Separable (Outer roller unit + separate inner ring) | Seals type | OPEN |
| Packaging Details | in individual packing box | Type | Heavy Duty Caged Needle Roller Bearing |
| Number of row | Single Row | Payment Terms | T/T,, |
| Appliion | Motors, Fans, Conveyors, Agricultural Machinery, General Industrial Equipment | Supply Ability | 100000 Sets per month |
| Outer diameter（D） | 177.8mm | Certifiion | ISO9001:2015 |
| Width（B） | 63.5mm | Bearing Model | MR88N+MI72N |
| Inner diameter（d） | 114.3mm | Model Number | MR88N+MI72N |
| Place of Origin | China | Brand Name | GQZ /OEM |
| High Light | heavy duty needle roller bearing ，MR88N MI72N needle roller bearing ，114.3×177.8×63.5mm needle roller bearing | ||
*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 | GCr15 Chrome Bearing Steel |
| Dynamic load Cr | 70200 lb ≈ 312 kN |
| Static load C0r | 169800 lb ≈ 755 kN |
| Feature | Outer ring with centralized lubriion groove & oil hole |
*Contact our technical team to confirm compatibility and bearing assembly suggestions.
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-lubriion?
A4: Yes. The outer ring has built-in lubriion 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.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
1989
Total Annual:
1000000-10000000
Employee Number:
10~100
Ecer Certification：
Verified Supplier
Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad... Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad...
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