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MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race

Nome da Marca:	GQZ /OEM
Número do modelo:	MR88N+MI72N
MOQ:	1 peça
preço:	USD 80 to 100
Prazo de entrega:	3-5 dias úteis
Condições de pagamento:	T/T, Western Union, Moneygram

Informações pormenorizadas

Descrição do produto

Informações pormenorizadas

Lugar de origem:

China

Certificação:

ISO9001:2015

Recurso:

Anel externo com ranhura para lubrificação centralizada e furo para óleo

Diâmetro interno (d):

114,3 mm

Liberação:

Número de linha:

Linha única

Largura (B):

63,5 mm

Modelo de rolamento:

MR88N+MI72N

Material:

Aço para rolamento 52100 cromo

Tipo de vedação:

Escudo Metálico (2ZR)

Aplicativo:

Motores, Ventiladores, Transportadores, Máquinas Agrícolas, Equipamentos Industriais em Geral

Diâmetro externo (D):

177,8 mm

Estrutura:

Separável (unidade externa do rolo + anel interno separado)

Tipo:

Rolamentos de rolos de agulhas de carga pesada em jaula

Detalhes da embalagem:

na caixa de embalagem individual

Habilidade da fonte:

100.000 conjuntos por mês

Descrição do produto

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race 0

Product Overview

MR88N+MI72N is a heavy-duty separable inch-size needle roller bearing assembly from MR series. MR88N refers to the outer ring & needle roller-cage unit without inner race; MI72N is the matched separate inner ring. Only assembled together can they form a complete working bearing unit. The outer ring features built-in lubrication groove and oil hole for convenient re-lubrication. Made of high-quality bearing steel, this unit delivers outstanding radial load capacity, widely adopted for heavy-load low-to-medium speed industrial equipment as replacement for McGill Cagerol bearings.

*Send inquiry to get latest factory price and technical datasheet for MR88N+MI72N needle roller bearing.

Key Specifications

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

Main Features

Separable structure: MR88N roller assembly and MI72N inner ring can be mounted separately for easy installation.
Ultra-high radial load capacity, ideal for heavy-duty working conditions.
Outer ring equipped with annular lubrication groove and oil hole to maintain stable lubrication.
Precision machined raceways and needle rollers for low friction and long service life.
Standard inch dimension, perfect interchange for original MR series bearing.
Open-type design, suitable for centralized lubrication systems.

Typical Applications

Construction machinery & off-highway equipment
Mining machinery and heavy gearboxes
Agricultural heavy-duty machinery
Hydraulic equipment and industrial transmission devices
Steel processing machinery
General heavy engineering machinery

*Contact our technical team to confirm compatibility and bearing assembly suggestions.

Why Choose GQZ Bearing

Strict raw material inspection, adopt high grade chrome bearing steel to guarantee hardness and wear resistance.
Precision grinding process ensures accurate dimension and interchangeability with original equipment.
Complete stock for MR series inch needle bearings, support sample testing and bulk wholesale.
Professional technical support for bearing selection and assembly guidance.
Accept OEM service, laser marking and customized packaging according to customer requirements.

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race 1

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race 2

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race 3

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race 4

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race 5

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race 6

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.

Tags:

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Carregando acessórios

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Mini-excavadora

Rolamentos para automóveis

Rolamentos agrícolas

Rolamentos de robôs

rolamento de esferas profundo do sulco

Rolamento de esferas angular do contato

Rolamentos cilíndricos

Rolamento de rolo afilado

Rolamentos de rolos de agulha

Rolamentos de rolos esféricos

Rolamento de esferas de alinhamento do auto

empurre o rolamento de esferas

empurre o rolamento de rolo

Rolamento do bloco de descanso

rolamento de esferas linear

Rolamento da esteira

Rolamentos de secção fina

Rolamento do anel de giro

Rolamento liso esférico

Rolamentos de esferas cerâmicos

Rolamentos de superprecisão

Carregando acessórios

corrente de aço inoxidável do rolo

Mini-excavadora

Detalhes dos produtos

MR88N+MI72N Heavy Duty Needle Roller Bearing 114.3×177.8×63.5mm MR88N Assembly With MI72N Inner Race