SKF 3780/3720 Tapered roller bearing

SKF 3780/3720 tapered roller bearing. Single-row tapered roller bearing designed to take combined heavy radial and one-direction axial load. Rollers, inner ring raceway (cone) and outer ring raceway (cup) are ground to converge at a common apex on the bearing axis. Two bearings are always mounted in opposition so the pair carries axial load in both directions and can be preloaded to remove all internal clearance. Metric dimensions per ISO 355 / ISO 492 Class Normal. Bore diameter d = 100 mm per ISO 15.

Type

Tapered roller bearing

Designation

SKF 3780/3720

Standard

ISO 15 / DIN 623 dimension plan; ISO 492 Class Normal precision

HS code

8482.20

Bore diameter

50.8 mm

Outside diameter

93.264 mm

Width, total

30.302 mm

Width, inner ring

30.302 mm

Width, outer ring

23.812 mm

Contact angle

12.7 °

Basic dynamic load rating

134 kN

Basic static load rating

146 kN

Reference speed

5600 r/min

Limiting speed

7000 r/min

SKF performance class

SKF Explorer

Bearing part

Complete bearing

Number of rows

1

Locating feature, bearing outer ring

Without

Bore type

Cylindrical

Cage

Sheet metal

Arrangement of contact angle (double-row bearing)

Not applicable

Matched arrangement

No

Coating

Without

Sealing

Without

Lubricant

None

Relubrication feature

Without

Unit system

Inch

Indicative carbon footprint for new product

3.3 kg CO2e

Product net weight

0.88 kg

eClass code

23-05-09-10

UNSPSC code

31171516

Standard

ISO 15 / ISO 492 / DIN 623

Material

Bearing steel — 100Cr6 (through-hardened) or SNR-nitrided; cage as declared by suffix

Temperature Range

-30 to +120 °C standard grease

HS Code

8482.20

• Timken 37803720
• NSK 37803720
• NTN 37803720
• FAG 37803720
• Koyo 37803720
• Equivalent: 37803720 (Timken)
• Equivalent: 37803720 (NSK)
• Equivalent: 37803720 (NTN)
• Equivalent: 37803720 (FAG)
• Equivalent: 37803720 (Koyo)