Needle Roller Bearing Inner Rings

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Needle Roller Bearing Inner Rings

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NO. Product Product Number Диаметр отверстия втулки (d) Ширина (B) Вес Диаметр дорожки качения (F) Размер фаски (r1,2)
101 LR35x40x12.5/ LR35x40x12.5 12.5 mm 0.027 kg 40 mm 0.3 mm
102 LR35x40x16.5/ LR35x40x16.5 16.5 mm 0.037 kg 40 mm 0.3 mm
103 IR IR 35x40x17 17 mm 0.038 kg 40 mm 0.3 mm
104 IR IR 35x40x20 20 mm 0.044 kg 40 mm 0.3 mm
105 IR IR 35x40x20.5 20.5 mm 0.046 kg 40 mm 0.3 mm
106 LR35x40x20.5/ LR35x40x20.5 20.5 mm 0.046 kg 40 mm 0.3 mm
107 IR IR 35x40x30 30 mm 0.067 kg 40 mm 0.3 mm
108 IR IR 35x42x36 36 mm 0.12 kg 42 mm 0.6 mm
109 IR IR 35x43x22 22 mm 0.082 kg 43 mm 0.6 mm
110 IR IR 38x43x20 20 mm 0.048 kg 43 mm 0.3 mm
111 IR IR 38x43x30 30 mm 0.074 kg 43 mm 0.3 mm
112 LR40x45x16.5/ LR40x45x16.5 16.5 mm 0.0416 kg 45 mm 0.3 mm
113 IR IR 40x45x17 17 mm 0.043 kg 45 mm 0.3 mm
114 IR IR 40x45x20 20 mm 0.049 kg 45 mm 0.3 mm
115 IR IR 40x45x20.5 20.5 mm 0.052 kg 45 mm 0.3 mm
117 LR40x45x20.5/ LR40x45x20.5 20.5 mm 0.052 kg 45 mm 0.3 mm
117 IR IR 40x45x30 30 mm 0.084 kg 45 mm 0.3 mm
118 IR IR 40x48x22 22 mm 0.092 kg 48 mm 0.6 mm
119 IR IR 40x48x40 40 mm 0.17 kg 48 mm 0.6 mm
120 IR IR 40x50x22 22 mm 0.12 kg 50 mm 1 mm
121 IR IR 42x47x20 20 mm 0.053 kg 47 mm 0.3 mm
122 IR IR 42x47x30 30 mm 0.081 kg 47 mm 0.3 mm
123 LR45x50x20.5/ LR45x50x20.5 20.5 mm 0.059 kg 50 mm 0.3 mm
124 IR IR 45x50x25 25 mm 0.071 kg 50 mm 0.6 mm
125 IR IR 45x50x25.5 25.5 mm 0.075 kg 50 mm 0.3 mm
126 LR45x50x25.5/ LR45x50x25.5 25.5 mm 0.075 kg 50 mm 0.3 mm
127 IR IR 45x50x35 35 mm 0.1 kg 50 mm 0.6 mm
128 IR IR 45x52x22 22 mm 0.089 kg 52 mm 0.6 mm
129 IR IR 45x52x40 40 mm 0.16 kg 52 mm 0.6 mm
130 IR IR 45x55x22 22 mm 0.13 kg 55 mm 1 mm
131 L50x55x20.5/ L50x55x20.5 20.5 mm 0.064 kg 55 mm 0.6 mm
132 IR IR 50x55x25 25 mm 0.078 kg 55 mm 0.6 mm
133 IR IR 50x55x35 35 mm 0.11 kg 55 mm 0.6 mm
134 IR IR 50x58x22 22 mm 0.12 kg 58 mm 0.6 mm
135 IR IR 50x58x40 40 mm 0.21 kg 58 mm 0.6 mm
136 IR IR 50x60x25 25 mm 0.16 kg 60 mm 1 mm
137 IR IR 50x60x28 28 mm 0.18 kg 60 mm 1.1 mm
138 IR IR 55x60x25 25 mm 0.086 kg 60 mm 0.6 mm
139 IR IR 55x60x35 35 mm 0.12 kg 60 mm 0.6 mm
140 IR IR 55x63x25 25 mm 0.14 kg 63 mm 1 mm
141 IR IR 55x63x45 45 mm 0.26 kg 63 mm 1 mm
142 IR IR 55x65x28 28 mm 0.2 kg 65 mm 1.1 mm
143 IR IR 60x68x25 25 mm 0.15 kg 68 mm 1 mm
144 IR IR 60x68x35 35 mm 0.21 kg 68 mm 0.6 mm
145 IR IR 60x68x45 45 mm 0.28 kg 68 mm 1 mm
146 IR IR 60x70x25 25 mm 0.2 kg 70 mm 1 mm
147 IR IR 60x70x28 28 mm 0.22 kg 70 mm 1.1 mm
148 IR IR 65x72x25 25 mm 0.14 kg 72 mm 1 mm
149 IR IR 65x72x45 45 mm 0.26 kg 72 mm 1 mm
150 IR IR 65x73x35 35 mm 0.23 kg 73 mm 1 mm
151 IR IR 65x75x28 28 mm 0.49 kg 75 mm 1.1 mm
152 IR IR 75x85x25 25 mm 0.24 kg 85 mm 1 mm
153 IR IR 75x85x35 35 mm 0.34 kg 85 mm 1 mm
154 IR IR 75x85x54 54 mm 0.53 kg 85 mm 1 mm
155 IR IR 80x90x25 25 mm 0.25 kg 90 mm 1 mm
156 IR IR 80x90x30 30 mm 0.3 kg 90 mm 1 mm
157 IR IR 80x90x35 35 mm 0.36 kg 90 mm 1 mm
158 IR IR 80x90x54 54 mm 0.56 kg 90 mm 1 mm
159 IR IR 85x95x26 26 mm 0.28 kg 95 mm 1 mm
160 IR IR 85x95x36 36 mm 0.39 kg 95 mm 1 mm
161 IR IR 85x100x35 35 mm 0.58 kg 100 mm 1.1 mm
162 IR IR 85x100x63 63 mm 1.05 kg 100 mm 1.1 mm
163 IR IR 90x100x26 26 mm 0.29 kg 100 mm 1 mm
164 IR IR 90x100x30 30 mm 0.34 kg 100 mm 1 mm
165 IR IR 90x100x36 36 mm 0.41 kg 100 mm 1 mm
166 IR IR 90x105x35 35 mm 0.61 kg 105 mm 1.1 mm
167 IR IR 90x105x26 26 mm 0.31 kg 105 mm 1 mm
168 IR IR 100x110x40 40 mm 0.51 kg 110 mm 1.1 mm
169 IR100x115x40/ IR100x115x40 40 mm 0.8 kg 115 mm 1.1 mm
170 IR110x120x30/ IR110x120x30 30 mm 0.41 kg 120 mm 1 mm
171 IR110x125x40/ IR110x125x40 40 mm 0.84 kg 125 mm 1.1 mm
172 IR120x130x30/ IR120x130x30 30 mm 0.44 kg 130 mm 1 mm
173 IR120x135x45/ IR120x135x45 45 mm 1.05 kg 135 mm 1.1 mm
174 IR130x145x35/ IR130x145x35 35 mm 0.86 kg 145 mm 1.1 mm
175 IR130x150x50/ IR130x150x50 50 mm 1.7 kg 150 mm 1.5 mm
176 IR140x155x35/ IR140x155x35 35 mm 0.92 kg 155 mm 1.1 mm
177 IR140x160x50/ IR140x160x50 50 mm 1.8 kg 160 mm 1.5 mm
178 IR150x165x40/ IR150x165x40 40 mm 1.1 kg 165 mm 1.1 mm
179 IR160x175x40/ IR160x175x40 40 mm 1.2 kg 175 mm 1.1 mm
180 IR170x185x45/ IR170x185x45 45 mm 1.45 kg 185 mm 1.1 mm
181 IR180x195x45/ IR180x195x45 45 mm 1.5 kg 195 mm 1.1 mm
182 IR190x210x50/ IR190x210x50 50 mm 2.4 kg 210 mm 1.5 mm
183 IR200x220x50/ IR200x220x50 50 mm 2.5 kg 220 mm 1.5 mm
184 IR220x240x50/ IR220x240x50 50 mm 2.75 kg 240 mm 1.5 mm
185 IR240x265x60/ IR240x265x60 60 mm 4.6 kg 265 mm 2 mm

Features and advantages of QIBR needle roller bearing inner ring

QIBR needle roller bearing inner ring solves multiple key problems in various fields, mainly reflected in the following aspects:

1. Precision machining

Needle roller bearing inner rings are usually manufactured through high-precision machining processes, such as cylindrical grinding, inner hole machining, etc., to ensure dimensional accuracy and surface finish, ensure smoother contact between the needle roller and the inner ring, and reduce friction loss.

2. Hardening treatment

In order to improve wear resistance and extend service life, the inner ring is often heat treated (such as quenching and tempering) to increase surface hardness and improve wear resistance.

3. Lightweight design

Since the inner ring of the needle roller bearing is designed to provide support and guidance, its design usually has a lighter structure, reducing the weight of the entire bearing and adapting to high speed and low friction requirements.

4. Wear resistance and fatigue strength

The material and processing method of the inner ring ensure that it maintains good performance during long-term operation. Its wear resistance and fatigue resistance enable the bearing to continue to work under harsh conditions and provide stable performance.

The performance improvement and solution of QIBR needle roller bearing inner ring 

1. Surface coating

By applying a layer of wear-resistant and corrosion-resistant coating (such as hard coating, ceramic coating, etc.) on the surface of the inner ring, the wear resistance, corrosion resistance and oxidation resistance of the inner ring can be improved, thereby enhancing its performance in harsh environments.

2. Nitriding treatment

The nitriding treatment of the inner ring can form a hardened layer on its surface, improve the anti-friction performance and reduce wear. In addition, the nitriding layer also has strong corrosion resistance.

3. Precision machining

Through higher precision machining methods such as grinding and ultra-precision machining, the surface finish and flatness of the inner ring are further improved, the friction coefficient is reduced, and it can maintain better stability under high speed and high load conditions.

4. Heat treatment

By quenching the inner ring, the hardness and wear resistance of the inner ring surface are improved, and the fatigue resistance and impact resistance are enhanced. This treatment can effectively extend the service life of the inner ring.