K serie
EFN-2RS
Rod ends with pressed spherical-plain bearing, with -2RS lip seals on both sides, female thread, series E/EH, DIN ISO 12240-4 & 8139, maintenance required
Available Sizes
15 → 70
The Essential
DURBAL heavy-duty rod ends with pressed spherical-plain bearing , with -2RS lip seals on both sides, series E / EH, female thread, according to DIN ISO 12240-4 and DIN 8139
Right hand thread: EFN_-30-501 and left hand thread: EFN_-30-502
- Housing: C45 forged steel, tempered, surface galvanized, free of Cr VI
- Outer ring: ball bearing steel, hardened, ground, phosphated, from size 15 with single split, oil groove and drill holes
- Joint ball: 100Cr6 ball bearing steel, hardened, ground, phosphated
- Maintenance: maintenance required, oiled on delivery, initial lubrication by the user
- Grease nipple: DIN 3405 D1/A (sizes 15 to 17), DIN 71 412 H1 (sizes 20 to 70), further grease nipple see on this page
- Tolerances: see on this page
- Temperature range: -40° C to +120° C
Special characteristics:
- Primary application in situations of alternating stresses or impact loads and preferred in situations of large swivelling movements;
- All rod end housings are made of forged steel, tempered, extremly high loads resistant and protected against corrosion by galvanisation.
- Rod ends are pressed as standard with DGE_ES-2RS radial-spherical-plain bearing.
- Rod ends from size 15 can be greased subsequently by means of a funnel-type lubrication nipple, and from size 20 by means of a conical grease nipple. Further special grease nipples available on request;
- -2RS lip seals on both sides prevent the penetration of coarse dirt particles inside the bearing.
- Connection dimensions in accordance with DIN ISO 8139 for pneumatic cylinders.
Available as a complete linkages (system) solution or separately with hexagonal locking nuts. For shaft diameters from 15 mm to 70 mm.
| Type | d (mm) | G | d2 (mm) | l4 (mm) |
|---|---|---|---|---|
| EFN 15 – 30 – 501 | 15 | M 14 | 38 | 80 |
| EFN 15 – 30 – 502 | 15 | M 14 | 38 | 80 |
| EFN 17 – 30 – 501 | 17 | M 16 | 44 | 89 |
| EFN 17 – 30 – 502 | 17 | M 16 | 44 | 89 |
| EFN 17 – 31 – 501 | 17 | M 16 x 1,5 | 44 | 89 |
| EFN 17 – 31 – 502 | 17 | M 16 x 1,5 | 44 | 89 |
| EFN 20 – 30 – 501 | 20 | M 20 x 1,5 | 51 | 102.5 |
| EFN 20 – 30 – 502 | 20 | M 20 x 1,5 | 51 | 102.5 |
| EFN 25 – 30 – 501 | 25 | M 24 x 2 | 62 | 125 |
| EFN 25 – 30 – 502 | 25 | M 24 x 2 | 62 | 125 |
| EFN 30 – 30 – 501 | 30 | M 30 x 2 | 70 | 145 |
| EFN 30 – 30 – 502 | 30 | M 30 x 2 | 70 | 145 |
| EFN 35 – 30 – 501 | 35 | M 36 x 3 | 82 | 166 |
| EFN 35 – 30 – 502 | 35 | M 36 x 3 | 82 | 166 |
| EFN 35 – 31 – 501 | 35 | M 36 x 2 | 82 | 171 |
| EFN 35 – 31 – 502 | 35 | M 36 x 2 | 82 | 171 |
| EFN 40 – 30 – 501 | 40 | M 42 x 3 | 92 | 191 |
| EFN 40 – 30 – 502 | 40 | M 42 x 3 | 92 | 191 |
| EFN 40 – 31 – 501 | 40 | M 39 x 3 | 92 | 188 |
| EFN 40 – 31 – 502 | 40 | M 39 x 3 | 92 | 188 |
| EFN 45 – 30 – 501 | 45 | M 45 x 3 | 102 | 216 |
| EFN 45 – 30 – 502 | 45 | M 45 x 3 | 102 | 216 |
| EFN 45 – 31 – 501 | 45 | M 42 x 3 | 102 | 196 |
| EFN 45 – 31 – 502 | 45 | M 42 x 3 | 102 | 196 |
| EFN 50 – 30 – 501 | 50 | M 52 x 3 | 112 | 251 |
| EFN 50 – 30 – 502 | 50 | M 52 x 3 | 112 | 251 |
| EFN 50 – 31 – 501 | 50 | M 45 x 3 | 112 | 216 |
| EFN 50 – 31 – 502 | 50 | M 45 x 3 | 112 | 216 |
| EFN 60 – 30 – 501 | 60 | M 60 x 4 | 135 | 292.5 |
| EFN 60 – 30 – 502 | 60 | M 60 x 4 | 135 | 292.5 |
| EFN 60 – 31 – 501 | 60 | M 52 x 3 | 135 | 242.5 |
| EFN 60 – 31 – 502 | 60 | M 52 x 3 | 135 | 242.5 |
| EFN 70 – 30 – 501 | 70 | M 72 x 4 | 162 | 346 |
| EFN 70 – 30 – 502 | 70 | M 72 x 4 | 162 | 346 |
| EFN 70 – 31 – 501 | 70 | M 56 x 4 | 162 | 281 |
| EFN 70 – 31 – 502 | 70 | M 56 x 4 | 162 | 281 |
| Type | d (mm) | G | d2 (mm) | l4 (mm) |
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