30300 Series

30300 Series

30300 Series

  • 30300 Series
selectInquiryDesignationPrincipal dimensions(mm)Basic load ratings(KN) PuSpeed ratings(rpm) Weight(Kg)ISO335 Dimensions (mm) Abutment and fillet dimensions (mm) Value
d1DBdyc(Cr)stc(Cor)Speed RatingsLimiting SpeedDimensions (ABMA)dd1~BCr1,2(min)r3,4(min)ada(max)db(min)Da(min)Da(max)Db(min)Ca(min)Cb(min)ra(max)rb(max)eYYo
30303J2 17 47 15,25 28,1 25 2,75 12000 16000 0,13 2FB 17 30,4 14 12 1 1 10 25 23 40 41 42 2 3 1 1 0,28 2,1 1,1
32303J2/Q 17 47 20,25 40 33,5 3,65 12000 16000 0,17 2FD 17 30,7 19 16 1 1 12 24 23 39 41 43 3 4 1 1 0,28 2,1 1,1
30304J2/Q 20 52 16,25 39 32,5 3,6 12000 14000 0,17 2FB 20 34,3 15 13 1,5 1,5 11 28 27 44 45 47 2 3 1,5 1,5 0,3 2 1,1
30305J2 25 62 18,25 44,6 43 4,75 9000 12000 0,26 2FB 25 41,5 17 15 1,5 1,5 13 34 32 54 55 57 2 3 1,5 1,5 0,3 2 1,1
30306J2/Q 30 72 20,75 64 56 6,4 8000 10000 0,39 2FB 30 48,4 19 16 1,5 1,5 15 41 37 62 65 66 3 4,5 1,5 1,5 0,31 1,9 1,1
30307J2/Q 35 80 22,75 83 73,5 8,3 7500 9000 0,52 2FB 35 54,5 21 18 2 1,5 16 46 44 70 71 74 3 4,5 2 1,5 0,31 1,9 1,1
30308J2/Q 40 90 25,25 100 95 10,8 6300 8000 0,72 2FB 40 62,5 23 20 2 1,5 19 53 49 77 81 82 3 5 2 1,5 0,35 1,7 0,9
30309J2/Q 45 100 27,25 125 120 14,3 5600 7000 0,97 2FB 45 70,1 25 22 2 1,5 21 59 53 86 91 92 3 5 2 1,5 0,35 1,7 0,9
30310J2/Q 50 110 29,25 143 140 16,6 5300 6300 1,25 2FB 50 77,2 27 23 2,5 2 23 65 60 95 100 102 4 6 2 2 0,35 1,7 0,9
30311J2/Q 55 120 31,5 166 163 19,3 4800 5600 1,55 2FB 55 84 29 25 2,5 2 24 71 65 104 112 111 4 6,5 2 2 0,35 1,7 0,9
30312J2/Q 60 130 33,5 168 196 23,6 4000 5300 1,95 2FB 60 91,9 31 26 3 2,5 26 77 72 112 118 120 5 7,5 2,5 2 0,35 1,7 0,9
30313J2/Q 65 140 36 194 228 27,5 3600 4800 2,40 2GB 65 98,6 33 28 3 2,5 28 84 77 122 128 130 5 8 2,5 2 0,35 1,7 0,9
30314J2/Q 70 150 38 220 260 31 3400 4500 2,90 2GB 70 105 35 30 3 2,5 29 90 82 130 138 140 5 8 2,5 2 0,35 1,7 0,9
30315J2/Q 75 160 40 246 290 34 3200 4300 3,45 2GB 75 112 37 31 3 2,5 31 96 87 139 148 149 5 9 2,5 2 0,35 1,7 0,9
30316J2 80 170 42,5 270 320 38 3000 4300 4,10 2GB 80 120 39 33 3 2,5 33 102 92 148 158 159 5 9,5 2,5 2 0,35 1,7 0,9
30317J2 85 180 44,5 303 365 40,5 2800 4000 4,85 2GB 85 126 41 34 4 3 35 107 99 156 166 167 6 10,5 3 2,5 0,35 1,7 0,9
30318J2 90 190 46,5 330 400 44 2600 4000 5,65 2GB 90 132 43 36 4 3 36 113 105 165 176 176 6 10,5 3 2,5 0,35 1,7 0,9
30319 95 200 49,5 330 390 42,5 2600 3400 6,70 2GB 95 139 45 38 4 3 39 118 110 172 186 184 6 11,5 3 2,5 0,35 1,7 0,9
30320J2 100 215 51,5 402 490 53 2400 3200 8,05 2GB 100 148 47 39 4 3 40 127 115 184 201 197 6 12,5 3 2,5 0,35 1,7 0,9
30322J2 110 240 54,5 473 585 62 2200 2800 11,0 2GB 110 165 50 42 4 3 43 142 125 206 226 220 8 12,5 3 2,5 0,35 1,7 0,9
30324J2 120 260 59,5 561 710 73,5 2000 2600 14,0 2GB 120 178 55 46 4 3 47 153 135 221 245 237 7 13,5 3 2,5 0,35 1,7 0,9
30326J2 130 280 63,75 627 800 83 1800 2400 17,0 2GB 130 196 58 49 5 4 51 164 150 239 263 255 8 14,5 4 3 0,35 1,7 0,9
33030 150 225 59 457 865 86,5 2000 2600 8,15 2EE 150 188 59 46 3 2,5 48 164 162 200 213 217 8 13 2,5 2 0,37 1,6 0,9
30332J2 160 340 75 913 1180 114 1500 2000 29,0 2GB 160 233 68 58 5 4 61 201 180 290 323 310 9 17 4 3 0,35 1,7 0,9
30352J2 260 540 113 2120 3050 250 850 1200 110 - 260 376 102 85 6 6 97 325 286 461 514 493 15 28 5 5 0,35 1,7 0,9

Tapered roller bearings are separate bearings, and the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into different structural types such as single row, double row and four row tapered roller bearings according to the number of rows of rollers installed. Single row tapered roller bearings can withstand radial loads and axial loads in a single direction. When the bearing is subjected to a radial load, an axial component will be generated, so another bearing that can withstand the axial force in the opposite direction is needed to balance.

1. Taper Roller Bearing Application:

Tapered roller bearings are usually of a separate type, that is, a conical inner ring assembly consisting of an inner ring with a roller and a cage assembly can be mounted separately from the outer bevel (outer ring). Tapered roller bearings are widely used in automobiles, rolling mills, mining, metallurgy, plastic machinery and other industries.

2. Tapered Roller Bearing Suffix definition:

A: Internal structure change

B: increased contact angle

X: The external dimensions are in accordance with international standards.

CD: Double outer ring with oil hole or oil groove.

TD: Double inner ring with tapered bore.

Tapered roller bearings are precision-engineered bearings designed to handle both radial and axial loads by utilizing tapered rolling elements. Here's a description of tapered roller bearings:

  1. Tapered Design: Tapered roller bearings have cone-shaped rolling elements (called rollers) and raceways on the inner and outer rings, which are tapered in the shape of a truncated cone. The angle of the taper typically ranges between 10 and 30 degrees.

  2. Single or Double Row: Tapered roller bearings can be configured as single-row bearings, where the rollers are arranged in a single row between an inner and outer ring, or as double-row bearings, which consist of two single-row assemblies mounted face-to-face or back-to-back.

  3. High Load Capacity: Due to their tapered design and large contact area between the rollers and raceways, tapered roller bearings can support both radial and axial loads. The load-carrying capacity increases as the angle of the taper increases.

  4. Axial and Radial Clearance Adjustment: Tapered roller bearings are capable of accommodating axial displacement of the shaft relative to the housing, allowing for axial clearance adjustment during installation or operation.

  5. Efficient Transmission of Axial Loads: Tapered roller bearings are particularly suitable for applications where axial loads are present, such as in automotive wheel hubs, gearboxes, and heavy machinery.

  6. Precision Tolerance and Consistency: Tapered roller bearings are manufactured to tight tolerances to ensure precise alignment of the rolling elements, minimizing friction and maximizing efficiency.

  7. Lubrication and Sealing: Tapered roller bearings are often equipped with lubrication holes and grooves in the outer ring to facilitate the distribution of grease or oil. They can also be supplied with seals or shields to protect against contamination and retain lubricant.

  8. Mounting and Disassembly: Tapered roller bearings can be mounted individually or in pairs using appropriate mounting methods, such as press fitting onto a shaft or housing. They can also be easily disassembled for maintenance or replacement.

    Bearing Detail

    Item No.

    2780/2720

    Bearing Type

    Taper roller bearing (Inch)

    Material

    Chrome steel GCr15

    Precision

    P0,P2,P5,P6,P4

    Clearance

    C0,C2,C3,C4,C5

    Bearing size

    inner diameter 0-200mm, outer diameter 0-400mm

    Cage type

    Brass, steel, nylon, etc.

    Ball Bearings Feature

    Long-life with high quality

    Low-noise with strict controlling the quality of JITO bearing

    High-load by the advanced high-technical design

    Competitive price, which has the most valuable

    OEM service offered, to meet the customers requirements

    Application

    Automobiles, rolling mills, mining, metallurgy, plastic machinery and other industries

    Bearing Package

    Pallet,wooden case,commercial packaging or as customers' requirement


    Packaging & Delivery:

    Packaging Details: Standard exporting packing or according to the customer's requirements

    Package Type:

    A. Plastic tubes Pack + Carton + Wooden Pallet


    B. Roll Pack + Carton + Wooden Pallet


    C. Individual Box +Plastic bag+ Carton + Wooden Pallet


    Lead Time :



    Quantity(Pieces)

    1 - 300

    >300

    Est. Time(days)

    2

    To be negotiated