Timken 78255X 78549D Tapered roller bearing

L:869.95 mm; Da:419.999 mm; Lock nut:AN 40; Initial grease fill:3515.4 g; R2:50.8 mm; Housing:SSAFS 340; dc:193.675 mm; Cap bolt:4 x 1 1/2-6 UNC; Cap bolt, SAE grade:8; Bearing:22340 CC/W33;

B:18 mm; Mass bearing:0.34 kg; Preload class A GA:150 N; Calculation factor f0:15.4; Da max.:89 mm; Reference grease quantity Gref:5.4 cm³; r3,4 min.:0.6 mm; a:19.4 mm; Attainable speed for grease lubrication:17000 r/min; Db max.:91.8 mm;

d2 ≈:803 mm; Reference speed:320 r/min; r1,2 min.:7.5 mm; Operating clearance factor k2:0.101; s1 max.:51.2 mm; Basic dynamic load rating C:10600 kN; D:1030 mm; Mass bearing:855 kg; Limiting speed:430 r/min; ra max.:6 mm;

db min.:32 mm; ra max.:1 mm; Calculation factor e:0.35; Cb min.:4 mm; T:22 mm; d1 ≈:38.7 mm; Calculation factor Y0:0.9; Reference speed:10000 r/min; r3,4 min.:1 mm; Dimension series:2CE;

d4 ≈:42 mm; C1 max.:20 mm; r1 min.:0.6 mm; l5 ≈:19 mm; G:M 30x2; l7 min.:36 mm; Basic dynamic load rating C:62 kN; h1:110 mm; α:6 °; Mass rod end:1 kg;

Grease Speed Rating n1:7500 rpm; d:25.000 mm; Basic Static Radial Load Rating Co:30500 N; D:62.0000 mm; Oil Speed Rating n2:10000 rpm; Accessories:Two Seals & Snap-Rin; Fillet Radius ra:1.00 mm; B:25.40 mm; Basic Dynamic Radial Load Rating C:34100 N; Sealed Speed Rating n3:7500 rpm;

Place of OriginchinaWarranty1 YearAfter-sales Service ProvidedVideo technical supportApplicable IndustriesManufacturing Plant, loaderSuitable Excavator(ton)1-20TkeywordLog Grapple timber grabMax opening2200mmweight60kg-2800kgApplication0.1t to 65t Excavator and backhoewarranty12monthsMaterial of

B:545 mm; Basic dynamic load rating C:25500 kN; s max.:23.2 mm; D:1500 mm; Basic static load rating C0:57000 kN; Mass bearing:3830 kg; D1 ≈:1338 mm; Calculation factor kr:0.37; Limiting speed:340 r/min; Design variant/feature:NNU K30/W33;

Sealed Speed Rating n3:11000 rpm; Basic Dynamic Radial Load Rating C:21600 N; Oil Speed Rating n2:14000 rpm; Basic Static Radial Load Rating Co:12700 N; d:17.000 mm; Accessories:Two Shields; D:47.0000 mm; Fillet Radius ra:1.00 mm; B:22.20 mm; Grease Speed Rating n1:11000 rpm;

d:75 mm; Fatigue load limit Pu:49 kN; r5 min.:0.6 mm; Ca min.:4 mm; Reference speed:3200 r/min; D:130 mm; ra max.:1.5 mm; K:3 mm; Da min.:114 mm; Calculation factor e:0.43;

Basic static load rating C0:400 kN; G:M 60x4; dk:80 mm; Mass rod end:7.1 kg; Basic dynamic load rating C:245 kN; r1 min.:1 mm; Specific dynamic load factor K:100 N/mm²; α:6 °; l3 min.:70 mm; d4 ≈:82 mm;

Limiting speed:160 r/min; Calculation factor e:0.35; B:232 mm; ra max.:5 mm; r1,2 min.:6 mm; D:650 mm; Basic dynamic load rating C:5669 kN; d:360 mm; D1 ≈:581 mm; b:22.3 mm;

Preload class A GA:30 N; D2:31.2 mm; Calculation factor fHC:1; Calculation factor f1:1; Preload class B GB:90 N; db max.:20.7 mm; Ball diameter Dw:5.556 mm; Calculation factor f:1.04; Basic dynamic load rating C:5.85 kN; Attainable speed for grease lubrication:63000 r/min;

Stabilizing ring:SR-26-0; Mass pillow block:79.4 kg; P180°:151 kN; R1:79.375 mm; Taconite seal (db shaft position):TER 136; Ca:73.812 mm; da:130 mm; RG:1/2 NPT; Pa:98.3 kN; Housing:SAFS 226;

Calculation factor e:0.35; B1:412 mm; Basic dynamic load rating C:13268 kN; K:12 mm; D:980 mm; Calculation factor Y1:1.9; Fatigue load limit Pu:1220 kN; Basic static load rating C0:20400 kN; D1 ≈:836 mm; G:Tr 560x6;