SKF 31312/DF Tapered Roller Bearing 60 × 130 × 67 mm

Matched tapered roller bearings arranged face-to-face

Tapered Roller Bearing

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Category: Tapered Roller Bearing
Dimensions: 60x130x67mm

Overview

Matched tapered roller bearings arranged face-to-face

Matched tapered roller bearings arranged face-to-face (X-arrangement, load lines diverge towards the bearing axis) accommodate high radial loads and axial loads in both directions. The precision manufactured intermediate ring between the outer rings enables a defined internal clearance or preload to be achieved when mounted. Matched tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills, and machines in the mining industry.

Key features

High radial load carrying capacity
Designed for axial loads in both directions
Relatively high stiffness
Surface finish on the contact surfaces of the rollers and raceways that enhances operational reliability

Typical applications

Automotive and industrial wheel hubs
Gearboxes and differentials
Construction and agricultural axles
Conveyors and rolling equipment

Selection guidance

Consider load ratio, mounting direction, preload/endplay, lubrication, and the paired bearing arrangement.

Symbol	Value	Description
C	303 kN	Basic dynamic load rating
C0	335 kN	Basic static load rating
reference_speed_rpm	3 000 r/min	Reference speed
limiting_speed_rpm	5 300 r/min	Limiting speed
performance_class	SKF Explorer	SKF performance class

Symbol	Value	Description
d	60 mm	Bore diameter
D	130 mm	Outside diameter
T	67 mm	Total width
B	62 mm	Inner ring width
C	67 mm	Outer ring width
α	28.8 °	Contact angle

Symbol	Value	Description
da	max. 74 mm	da
Da	max. 119.5 mm	Da
Ca	min. 5 mm	Ca
ra	max. 3 mm	ra
rc	max. 1 mm	rc

High radial load capacity
Designed to accommodate axial loads in both directions
Relatively high rigidity
Surface finishing of roller and raceway contact surfaces improves operational reliability

Code	Description
베어링 부품	Complete bearing
열 개수	2
로케이팅 기능, 베어링 외륜	None
보어 유형	Cylindrical
케이지	Sheet metal
일치된 배열	Face-to-face (X)
일치된 세트의 베어링 개수	2
코팅	None
씰링	None
윤활유	None
재윤활 기능	Included
제품 순 중량	4.05 kg
eClass 코드	23-05-09-10

datasheet pdf download

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