bruce@ufinebearing.com 008613791051960

NAA 306-18 P06 Insert Ball Bearings /pillow block

pillow block bearing
NAA 306-18P06

Tel/Wechat/Whatsapp/Skype: 008613791051960

Email: bruce@ufinebearing.com


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Ufine Bearing CO., LTD is a Chinese bearing manufacturer which is located in the city ofJiNan - the provincial capital of ShanDong province, China. The enterprise  concentrates on manufacturing all kinds of bearings as our own brand “UFE”, mainly include roller bearings and ball bearings. And we have also set a long-term cooperationwith several famous bearing companies in the world, such as NSK, TIMKEN,NACHI, KOYO, NTN,SNR. The products we produce have already been sold to all over China and also abroad. The bearing brand “UFE” enjoys high states in the rolling bearing industry of China and is highly praised by our customers.

NAA 306-18P06 Ball Bearings Super Precision Bearing NEW LOW PRICE Insert Bearing

Bearing number : NAA 306-18

Size (mm) : 28.575x72x19

SizeInch1 1/8×2.8346*0.750

Brand : UFE and SHUSTER

Bore Diameter (mm) : 28,575

Bore Diameter (Inch): 1 1/8

Outer Diameter (mm) : 72

Outer Diameter (Inch) : 2.8346

Bearing dimensions and specification

d - 28,575 mm

d - 1 1/8 Inch

D - 72 mm

D - 2.8346 Inch

B - 36,51 mm

B - 1.437 Inch

C - 19 mm

C - 19 0.750 Inch

d1 - 49,21 mm

d1 - 1.937 Inch

B1 - 50 mm

B1 - 1.9685 Inch

B2 - 17,46 mm

B2 - 0.6874 Inch

Weight - 0,585 Kg

Basic dynamic load rating (C) - 33,5 kN

Basic static load rating (C0) - 15,6 kN

A pillow block usually refers to a housing with an included anti-friction bearing. A pillow block refers to any mounted bearing wherein the mounted shaft is in a parallel plane to the mounting surface, and perpendicular to the center line of the mounting holes, as contrasted with various types of flange blocks or flange units. A pillow block may contain a bearing with one of several types of rolling elements, including ball, cylindrical roller, spherical roller, tapered roller, or metallic or synthetic bushing. The type of rolling element defines the type of pillow block. These differ from "plummer blocks" which are bearing housings supplied without any bearings and are usually meant for higher load ratings and a separately installed bearing.

The fundamental application of both types is the same, which is to mount a bearing safely enabling its outer ring to be stationary while allowing rotation of the inner ring. The housing is bolted to a foundation through the holes in the base. Bearing housings may be either split type or solid type. Split type housings are usually two-piece housings where the cap and base may be detached, while others may be single-piece housings. Various sealing arrangements may be provided to prevent dust and other contaminants from entering the housing. Thus the housing provides a clean environment for the environmentally sensitive bearing to rotate free from contaminants while also retaining lubrication, either oil or grease, hence increasing its performance and duty cycle.

Bearing housings are usually made of grey cast iron. However, various grades of metals can be used to manufacture the same, including ductile iron, steel, stainless steel, and various types of thermoplastics and polyethylene-based plastics. The bearing element may be manufactured from 52100 chromium steel alloy (the most common), stainless steel, plastic, or bushing materials such as SAE660 cast bronze, or SAE841 oil impregnated sintered bronze, or synthetic materials.