29360-E bearing: complete specifications & equivalents
The 29360-E is a ISO 104 radial bearing sized 300 x 480 x 109 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 300 mm |
| Outer diameter D | 480 mm |
| Width B | 109 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 3100 kN |
| Basic static load rating C0 | 10600 kN |
| Fatigue load limit Pu | 930 kN |
| Reference speed (thermal) | 750 rpm |
| Limiting speed (mechanical) | 1200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 75000 g |
| Manufacturer designation | 29360 E |
| Standard | ISO 104 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 13.1 spherical roller thrust bearings |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 13.1 spherical roller thrust bearings) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 13.1 spherical roller thrust bearings); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & 29300-series range
| Bore d | 11.811 in |
|---|---|
| Outer diameter D | 18.898 in |
| Width B | 4.291 in |
| ISO bore code | 60 |
| Radial section height (D−d)/2 | 90 mm |
| Smallest bore in 29300-series | 85 mm |
| Largest outer diameter in 29300-series | 1180 mm |
| Width range across 29300-series | 39–230 mm |
| Bore position in 29300-series (smallest first) | 18 of 31 |
| Bore above smallest 29300-series size | 215 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 29360-E model number is decoded
In SKF catalogue PUB BU/P1 17000, 29360 E denotes a self-aligning thrust bearing: the sphered back face of the housing washer follows seat misalignment while the stamped steel E window cage guides the rollers under 109 mm of axial section. The designation 29360 E separates into 293 (series), 60 (300 mm bore) and E; washers are separable for individual mounting. The medium 293 series is typically oil-bath or forced-oil lubricated in the large sizes: the pumping action of the barrel rollers drives oil through the contact, and interrupted oil supply damages the bearing fastest. Static safety matters for shock duty: compare peak axial force against C0 10600 kN with the application's static factor, since crane hooks and screw positions see their worst load at zero or low speed. Verify the minimum axial load (factor A 11) immediately at commissioning — a cold start unloaded smears the rollers; spring preload or rotor weight must be present before the shaft rotates.
Typical equipment & failure modes
Common applications
- marine shaft and rudder-style thrust positions with seat deflection
- paper machine calender and refiner discs with combined axial and radial force
- crane hook assemblies where the hook block turns under full load
- injection moulding machine and extruder screw thrust positions
Known failure patterns
- cage wear from rollers being dragged through unloaded zones under fluctuating thrust
- washer back-face fretting where the seat is too narrow to support the full ring face
- abrasive paste forming as dust bypasses the housing seals into the open washer set
- false brinelling and rust-red witness marks on standby machines under external vibration
- roller skidding and raceway glazing once the thrust falls below the catalogue minimum axial load (factor A)
Selection pitfalls — read before you substitute
- At 300 mm bore, oil flow becomes the design variable: the 3100 kN rating assumes fresh oil at the contact, and a blocked feed groove halves real life.
- the 750 r/min reference speed is the thermal criterion under load, the 1,200 r/min limiting speed is the mechanical ceiling; large 293 bearings are normally run well below it with oil cooling.
- Radial force beyond the permitted fraction of simultaneous thrust (about 0.55·F_a) overloads one side of the barrel-roller set — add a radial bearing instead of leaning on 29360 E.
- The 3100/10600 kN figures assume the matching sphered seating washer is fitted where the catalogue calls for it; a flat housing seat removes the self-aligning function.
- Minimum load factor A 11 dominates commissioning: start the oil flow and preload before rotation, especially on 293 bearings where an unloaded cold start smears the rollers.
- The 3100/10600 kN ratings and 75000 g mass are SKF catalogue values transcribed from ch. 13.1 of PUB BU/P1 17000 (PDF table page 926); mounting data — the minimum axial load factor A — appears in the running text because the structured record carries the boundary envelope only.
Frequently asked questions
What are the dimensions and ratings of the 29360 E?
A 29360 E measures 300 mm bore × 480 mm outside diameter × 109 mm width (11.811 × 18.898 × 4.291 in). From SKF catalogue PUB BU/P1 17000: dynamic C 3100 kN, static C0 10600 kN, fatigue limit Pu 930 kN, reference speed 750 r/min, limiting speed 1,200 r/min, mass about 75000 g. Minimum axial load factor A 11 must be maintained in service.
How is the 29360 E designation read?
293 is the dimension series (medium 293 series) and 60 the 300 mm bore (code 60 × 5); E is the cage execution (stamped steel E window cage). The sphered housing washer provides self-alignment.
Why is the minimum axial load (A 11) so important?
Spherical roller thrust bearings skid and smear immediately when run unloaded — on large sizes factor A 11 corresponds to a substantial force. Springs, oil lift or the rotor/load weight must be applied before rotation, including cold test runs.
Can the 29360 E also carry radial load?
Yes, up to roughly 55 % of the simultaneous axial force, thanks to the steep contact angle of the barrel rollers. Beyond that mix, specify a separate radial bearing; the primary duty remains one-direction thrust.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 13.1 spherical roller thrust bearings on 2026-09-27. Read our editorial & correction policy.