Metric paired bearings

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Standard

GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN / VDEh,DIN / VDEh

Material

Bearing steel, Stainless steel, Carburized steel

Inner diameter (d)

15-60 mm

Cup outer diameter (D)

42-140 mm

Brand

QIBR/OEM/Neutral

Package

QIBR/Standard Industrial Package/OEM

Applications

Automotive industry; Mechanical equipment; Precision instruments; Aerospace; Railway transportation; Electric Energy etc

Metric paired bearings

Filters

NO. Product Product Number Basic dynamic load rating Basic static load rating Bore Outer diameter (D) Overall width (T) Mass
101 32928/DF/ 32928/DF 432 KN 780 KN 140 mm 190 mm 64 mm 5.2 kg
102 32028X/DF/ 32028X/DF 692 KN 1160 KN 140 mm 210 mm 90 mm 11 kg
103 32324/DF/ 32324/DF 1466 KN 2240 KN 120 mm 260 mm 181 mm 45 kg
104 32926/DF/ 32926/DF 420 KN 735 KN 130 mm 180 mm 64 mm 4.95 kg
105 32226/DF/ 32226/DF 1012 KN 1660 KN 130 mm 230 mm 135.5 mm 23 kg
106 30226/DF/ 30226/DF 774 KN 980 KN 130 mm 230 mm 87.5 mm 14 kg
107 32024X/DF/ 32024X/DF 513 KN 830 KN 120 mm 180 mm 76 mm 6.75 kg
108 33024/DF/ 33024/DF 611 KN 1080 KN 120 mm 180 mm 96 mm 8.6 kg
109 30224/DF/ 30224/DF 716 KN 915 KN 120 mm 215 mm 87 mm 12.5 kg
110 32224/DF/ 32224/DF 983 KN 1400 KN 120 mm 215 mm 123 mm 18.5 kg
111 30324/DF/ 30324/DF 1031 KN 1400 KN 120 mm 260 mm 119 mm 29 kg
112 31324X/DF/ 31324X/DF 992 KN 1400 KN 120 mm 260 mm 136 mm 32.5 kg
113 30330/DF/ 30330/DF 1507 KN 2120 KN 150 mm 320 mm 144 mm 52 kg
114 31330X/DF/ 31330X/DF 1427 KN 2040 KN 150 mm 320 mm 164 mm 58.5 kg
115 32032X/DF/ 32032X/DF 912 KN 1560 KN 160 mm 240 mm 102 mm 16 kg
116 30232/DF/ 30232/DF 971 KN 1460 KN 160 mm 290 mm 104 mm 27.5 kg
117 32232/DF/ 32232/DF 1602 KN 2800 KN 160 mm 290 mm 168 mm 48 kg
118 32034X/DF/ 32034X/DF 1071 KN 1830 KN 170 mm 260 mm 114 mm 21.5 kg
119 30234/DF/ 30234/DF 1126 KN 1730 KN 170 mm 310 mm 114 mm 34.5 kg
120 32228/DF/ 32228/DF 1185 KN 2000 KN 140 mm 250 mm 143.5 mm 29.5 kg
121 30228/DF/ 30228/DF 773 KN 1140 KN 140 mm 250 mm 91.5 mm 18 kg
122 31328X/DF/ 31328X/DF 1264 KN 1800 KN 140 mm 300 mm 154 mm 49 kg
123 32030X/DF/ 32030X/DF 782 KN 1320 KN 150 mm 225 mm 96 mm 13.5 kg
124 30230/DF/ 30230/DF 781 KN 1120 KN 150 mm 270 mm 98 mm 22 kg
125 32230/DF/ 32230/DF 1341 KN 2280 KN 150 mm 270 mm 154 mm 37.5 kg
126 32248/DF/ 32248/DF 3300 KN 6550 KN 240 mm 440 mm 254 mm 172 kg
127 32052X/DF/ 32052X/DF 2127 KN 4400 KN 260 mm 400 mm 174 mm 79 kg
128 32252/DF/ 32252/DF 4013 KN 7350 KN 260 mm 480 mm 274 mm 213 kg
129 32056X/DF/ 32056X/DF 2208 KN 4750 KN 280 mm 420 mm 174 mm 84 kg
130 32256/DF/ 32256/DF 2410 KN 7800 KN 280 mm 500 mm 274 mm 226 kg
131 32060X/DF/ 32060X/DF 2818 KN 6000 KN 300 mm 460 mm 200 mm 119 kg
132 32260/DF/ 32260/DF 2935 KN 9500 KN 300 mm 540 mm 280 mm 290 kg
133 32964/DF/ 32964/DF 1982 KN 4650 KN 320 mm 440 mm 152 mm 69 kg
134 32064X/DF/ 32064X/DF 2852 KN 6200 KN 320 mm 480 mm 200 mm 104 kg
135 32968/DF/ 32968/DF 1995 KN 4800 KN 340 mm 460 mm 152 mm 73 kg
136 32972/DF/ 32972/DF 2043 KN 5100 KN 360 mm 480 mm 152 mm 302 kg
137 32240/DF/ 32240/DF 2229 KN 4000 KN 200 mm 360 mm 208 mm 88 kg
138 32944/DF/ 32944/DF 1030 KN 2000 KN 220 mm 300 mm 102 mm 21 kg
139 32044X/DF/ 32044X/DF 1637 KN 3350 KN 220 mm 340 mm 152 mm 51 kg
140 30244/DF/ 30244/DF 1816 KN 2800 KN 220 mm 400 mm 144 mm 72 kg
141 32244/DF/ 32244/DF 2949 KN 5400 KN 220 mm 400 mm 228 mm 124 kg
142 32948/DF/ 32948/DF 1069 KN 2160 KN 240 mm 320 mm 102 mm 22.5 kg
143 32048X/DF/ 32048X/DF 1695 KN 3550 KN 240 mm 360 mm 152 mm 54.5 kg
144 32234/DF/ 32234/DF 1843 KN 3250 KN 170 mm 310 mm 182 mm 59.5 kg
145 32936/DF/ 32936/DF 746 KN 1460 KN 180 mm 250 mm 90 mm 14 kg
146 32036X/DF/ 32036X/DF 1360 KN 2320 KN 180 mm 280 mm 128 mm 29 kg
147 30236/DF/ 30236/DF 1079 KN 1630 KN 180 mm 320 mm 114 mm 35.5 kg
148 32236/DF/ 32236/DF 1833 KN 3250 KN 180 mm 320 mm 182 mm 61 kg
149 32938/DF/ 32938/DF 760 KN 1530 KN 190 mm 260 mm 90 mm 14.5 kg
150 32038X/DF/ 32038X/DF 1381 KN 2400 KN 190 mm 290 mm 128 mm 30.5 kg
151 32038X/L4BDF/ 32038X/L4BDF 1381 KN 2400 KN 190 mm 290 mm 128 mm 30.5 kg
152 30238/DF/ 30238/DF 1308 KN 2000 KN 190 mm 340 mm 120 mm 42.5 kg
153 32040X/DF/ 32040X/DF 1372 KN 2750 KN 200 mm 310 mm 140 mm 39 kg
154 30240/DF/ 30240/DF 1448 KN 2240 KN 200 mm 360 mm 128 mm 52 kg
155 31305/DF/ 31305/DF 79.9 KN 80 KN 25 mm 62 mm 36.5 mm 0.55 kg

Single-row metric tapered roller bearings solve several key problems in various fields, which are mainly reflected in the following aspects:

1. Single-row metric tapered roller bearings have high load-bearing capacity

The contact angle between the inner ring, outer ring and roller of a single-row metric tapered roller bearing is usually a cone, which can bear large radial and axial loads at the same time. Due to its rolling contact method, the load distribution of this type of bearing is relatively uniform and the load-bearing capacity is relatively high.

2. Single-row metric tapered roller bearings have good wear resistance

Single-row metric tapered roller bearings are particularly suitable for bearing radial loads and axial loads acting simultaneously. The contact angle of the bearing (usually between 15° and 30°) determines its load-bearing capacity for axial loads, so it is often selected in applications with high loads and high reliability requirements.

3. Single-row metric tapered roller bearings have adjustable clearance

During the installation process of single-row metric tapered roller bearings, the radial clearance between the inner and outer rings can be adjusted according to actual needs. This adjustability enables the bearings to adapt to different working conditions and thus obtain the best operating performance.

4. Good adaptability

Due to the geometric characteristics between the inner and outer rings and rolling elements of the single-row metric tapered roller bearings, it can adapt to a certain axial displacement. During the process of operation, the bearings can effectively withstand the eccentricity or axial displacement of the shaft and have good adaptability.


Performance improvement and solutions for single-row metric tapered roller bearings

1. Improve high-speed adaptability

Improve the structure of the bearing, reduce the friction between the inner and outer rings, and reduce the temperature rise during the process of operation, thereby improving the high-speed operation capability of the bearing.

2. Corrosion resistance

By selecting corrosion-resistant materials, or surface coatings or plating, the working ability of the bearing in harsh environments such as moisture, salt spray, acid and alkali can be improved, and the service life can be extended.

3. Improve manufacturing accuracy

Adopt advanced foreign processing equipment and processes, such as precision grinding, super-finishing grinding, etc., to improve the geometric accuracy of the inner and outer rings and rollers, reduce processing errors, and thus improve the rotation accuracy and roughness of the bearing.

4. Improve material properties

The carburizing process is used to harden the surface of the material, while its core (heart) still retains a low hardness and good toughness. This structure enables the bearing to maintain sufficient toughness when subjected to large loads, avoiding cracking or fragmentation due to impact or excessive fatigue.


Main application areas of single-row metric tapered roller bearings

1. Differentials

Single-row metric tapered roller bearings used in differentials can support the torque and pressure of vehicles when turning.

2. Axles

Single-row metric tapered roller bearings used in railway axles can effectively support the radial and axial loads of axles and provide smooth running performance in long-term use.

3. Marine engines

Single-row metric tapered roller bearings used in marine engines can withstand large axial and radial loads.

4. Tractors and agricultural equipment

In agricultural machinery, single-row metric tapered roller bearings are used in parts that withstand high axial and radial loads.