SKF QJ 312 PHAS Four-Point Contact Ball Bearing 60 × 130 × 31 mm

Four-Point Contact Ball Bearing

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Category: Four-Point Contact Ball Bearing
Dimensions: 60x130x31mm

Overview

Four-point contact ball bearing

Four-point contact ball bearings can accommodate high axial loads in both directions and small radial loads. They can operate at very high speeds and are more suitable than deep groove ball bearings for supporting large axial forces. The outer ring, with ball and cage assembly, can be mounted separately from the two inner ring halves.

Key features

High-speed capability
Accommodate high axial loads in both directions and small radial loads
Require considerably less axial space than double row angular contact ball bearings

Typical applications

Industrial gearboxes
Cranes and hoists
Rotary tables
Pump and compressor shaft supports

Selection guidance

Confirm axial load dominance, radial load ratio, speed, internal clearance, and the companion bearing arrangement.

Symbol	Value	Description
C	156 kN	Basic dynamic load rating
C0	137 kN	Basic static load rating
limiting_speed_rpm	9 000 r/min	Limiting speed
performance_class	SKF Explorer	SKF performance class

Symbol	Value	Description
d	60 mm	Bore diameter
D	130 mm	Outside diameter
B	31 mm	Width
α	35 °	Contact angle

Symbol	Value	Description
da	min. 72 mm	da
Da	max. 118 mm	Da
ra	max. 2 mm	ra

High-speed performance
Accommodates high axial loads and small radial loads in both directions
Considerably less axial space required than a double-row angular contact ball bearing

Code	Description
접촉 유형	Four-point contact
열 개수	1
로케이팅 기능, 베어링 외륜	None
링 유형	Two-piece inner ring and one-piece outer ring
케이지	Non-metallic
일치된 배열	No
유니버설 매칭 베어링	No
축방향 내부틈새	CN
소재, 베어링	Bearing steel
코팅	None
씰링	None
윤활유	None
재윤활 기능	None
제품 순 중량	1.82 kg
eClass 코드	23-05-08-05
UNSPSC 코드	31171538

datasheet pdf download

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