INASL04-5008PPDouble Row Full Complement Cylindrical Roller Bearing 40 x 68 x 38 mm, Sealed Both Sides, Cylindrical Bore

Product Description

What this part is

A double-row full-complement cylindrical roller bearing with a cylindrical bore and lip seals on both faces, 40 mm bore × 68 mm outside diameter × 38 mm width. Two rows of cylindrical rollers fill the annulus with no cage, guided between flanges integral to the solid inner and outer rings.

Decoding the designation

SL04 — INA double-row full-complement cylindrical roller series, sealed execution.
5008 — size code within the series, 40 mm bore.
PP — lip seals on both sides, greased.
No NR suffix — plain outer ring, no snap-ring groove.

What these specs mean in practice

Removing the cage lets a second row of rollers occupy the space a cage would take, which is what raises the radial rating well above a caged single-row bearing in the same section. The trade is speed: rollers rub against their neighbours instead of being separated by cage pockets, so friction and heat rise with rotational speed and the limiting speed sits far below an equivalent caged design. That places this bearing in slow, heavily loaded positions. The integral seals retain the factory grease charge and exclude contamination, which suits a position where a housing seal would be difficult to arrange.

Published specifications

Bore: 40 mm (1.575 in), cylindrical
Outside diameter: 68 mm (2.677 in)
Width: 38 mm (1.496 in)
Rows: 2
Rolling element: cylindrical rollers, full complement, no cage
Closure: lip seals both sides, factory greased
Tolerance class: PN
Radial internal clearance: CN, normal
Limiting speed: approximately 3 056 rpm, grease lubricated
Operating temperature range: −30 °C to +80 °C
Mass: 0.524 kg

Axial location

The rollers run between integral ring flanges, so the bearing carries radial load and locates the shaft within the limits of that flange guidance. It is a radial bearing; a separate thrust element handles axial load in an application that needs one.

Quantity and configuration

Sale unit 1 Pc. Bearing only.

Interchange guidance

The SKF cross for this size and execution is NNF5008-ADB-2LSV, the same double-row full-complement sealed cylindrical roller bearing. An SL04-5008PP 2NR is a related size, since it adds two snap rings and the outer-ring grooves to seat them. A caged single-row NU or NN bearing of the same bore is a different part: it carries less radial load and runs faster, so the two are not substitutes in either direction.