BK Series Drawn Cup Needle Roller Bearings

1.Material: Gcr15/Bearing steel
2.Cage: Steel stamped/PA66
3.Primary Application Range:Automotive and motorcycle.
4.Delivery time: 7 working days
5.Support OEM.customization
9.Samples: Sample service available
Product Description

BK Series Drawn Cup Needle Roller Bearings - Compact High-Load Solutions

When you need maximum radial load capacity in minimal space, BK Series Drawn Cup Needle Roller Bearings deliver exceptional performance through their unique closed-end design. These specialized bearings feature a thin-walled, deep-drawn outer ring manufactured from case-hardened steel. The closed bottom eliminates the need for separate end caps while providing effective sealing at shaft terminals. You'll find these bearings particularly valuable in automotive transmissions and industrial applications where space constraints demand compact solutions without compromising load capacity.

BK Series Drawn Cup Needle Roller Bearings

Technical Architecture and Design Features

The technical foundation of these bearings centers on a case-hardened steel outer cup combined with high-carbon chromium steel needle rollers. The outer ring utilizes low-carbon steel (typically ST14 or equivalent) that's deep-drawn to create the characteristic cup shape with integrated bottom closure.

Key Structural Elements

The bearing structure consists of three primary components working in harmony. The outer cup provides the raceway surface and structural integrity. High-precision needle rollers distribute radial loads efficiently across the contact area. The cage assembly maintains proper roller spacing and prevents skewing during operation.

Material Specifications

Component Material Grade/Standard Heat Treatment
Outer Cup ST14 Low Carbon Steel Case-hardened 58-64 HRC
Needle Rollers GCr15 Bearing Steel G2 Precision Through-hardened
Cage Steel Stamped/PA66 - -

Working Principle and Load Distribution

The bearing works on the rule of rolling contact between needle rollers and the raceway surfaces. The thin-profile rollers make line contact or maybe than point contact, dispersing loads over a bigger surface range. This plan empowers you to accomplish higher stack appraisals compared to ball orientation of proportionate size.

The closed-end setup gives hub direction for the shaft whereas keeping up the bearing's essential spiral stack work. The obstructions fit mounting strategy guarantees legitimate arrangement and dispenses with the require for extra maintenance hardware.

Performance Advantages in Real Applications

Space Efficiency

You can accomplish critical space investment funds due to the negligible outspread cross-section tallness. The bearing's external distance across closely matches the lodging bore, whereas the spiral thickness breaks even with fair the needle roller breadth also the glass divider thickness.

High Stack Capacity

The ceaseless line contact between rollers and raceways empowers uncommon spiral stack dissemination. You'll ordinarily see stack evaluations 30-40% higher than proportionate ball bearings.

Integrated Sealing

The closed foot plan gives characteristic assurance against contaminants whereas avoiding grease spillage. This dispenses with your require for partitioned fixing components in numerous applications.

Cost-Effective Installation

The obstructions fit mounting disentangles lodging plan prerequisites. You won't require machined shoulders, snap ring grooves, or partitioned maintenance equipment.

Technical Specifications

Bearing Designations
Shaft Diametermm
Boundary Dimensions(mm)
Basic Load Rating(N)
Limiting Speed(r/min)
Weight(g)
 
 
Fw
D
C
Cr
Cor
Oil
 
BK0306
3
3
6.5
6
1320
950
6000
1.6
BK0408
4
4
8
8
1540
1070
40000
1.8
BK0509
5
5
9
9
2200
1790
36000
2.1
BK0608
6
6
10
8
1830
1550
32000
2.2
BK0609
6
6
10
9
2650
2400
30000
2.6
BK0709
7
7
11
9
2800
2150
27000
2.9
BK0808
8
8
12
8
2550
2400
21000
3
BK0810
8
8
12
10
3700
3450
21000
3.4
BK08X14X10
8
8
14
10
3800
3950
25000
5.8
BK0908
9
9
13
8
3650
4050
25000
3.4
BK0910
9
9
13
10
4050
4250
25000
4.3
BK0912
9
9
13
12
5000
6000
25000
4.9
BKl010
10
10
14
10
3900
4800
19000
4.3
BKl012
10
10
14
12
5000
6300
19000
5
BKl015
10
10
14
15
6700
7800
19000
6.2
BKl0X16X10
10
10
16
10
6800
8800
18000
6.8
BKl210
12
12
16
10
4150
5800
19000
5.2
BKl212
12
12
16
12
3800
5100
15000
6.2
BKl2X18X12
12
12
18
12
5500
6300
17000
10.3
BKl312
13
13
19
12
6200
7100
17000
11.2
BKl410
14
14
20
10
6700
7000
16000
12.1
BKl512
15
15
21
12
7000
8400
14000
12.7
BKl515
15
15
21
15
9800
11400
14000
14.2
BKl516
15
15
21
16
9800
11400
14000
16.5
BKl518
15
15
21
18
10100
10800
14000
18
BKl522
15
15
21
22
10400
16500
14000
22
BKl612
16
16
22
12
7100
9200
14000
13.8
BKl616
16
16
22
16
10100
14300
14000
17.6
BKl622
16
16
22
22
11100
17400
14000
23.4
BKl712
17
17
23
12
6900
9300
13000
14.5
BKl716
17
17
23
16
8500
12500
10000
14.6
BKl812
18
18
24
12
7100
9900
12000
14.9
BKl816
18
18
24
16
10600
15300
12000
19.9
BK2010
20
20
26
10
5900
7200
10000
14
BK2012
20
20
26
12
7600
10100
10000
16.7
BK2016
20
20
26
16
11700
29100
10000
22.3
BK2020
20
20
26
20
13700
24000
10000
27.1
BK2030
20
20
26
30
21800
40000
10100
43
BK2212
22
22
28
12
8100
10400
10100
18.1
BK2216
22
22
28
16
11400
18100
10100
24.3
BK2220
22
22
28
20
14500
25000
10100
29.9
BK2512
25
25
32
12
10000
14200
9000
23.2
BK2516
25
25
32
16
13600
50000
9000
31
BK2520
25
25
32
20
17900
30000
9000
38.7
BK2526
25
25
32
26
22500
42000
9000
49
BK2538
25
25
32
38
30000
58000
9000
69
BK2816
28
28
35
16
15400
22500
8700
34.1
BK2820
28
28
35
20
18900
32000
8700
43
BK3012
30
30
37
12
10100
16200
8100
27.9
BK3016
30
30
37
16
15200
27000
8100
37.1
BK3020
30
30
37
20
19700
33500
8100
46.5
BK3026
30
30
37
26
24000
50000
8100
59.4
BK3038
30
30
37
38
32500
74000
8100
82.5
BK3512
35
35
42
12
12100
19300
7100
32.9
BK3516
35
35
42
16
15700
27500
7100
43.8
BK3520
35
35
42
20
20800
41000
7100
54.8
BK3530
35
35
42
30
20801
41001
7101
58.4
BK4012
40
40
47
12
14000
24300
6300
38.2
BK4016
40
40
47
16
20000
38500
6300
51
BK4020
40
40
47
20
25500
52000
6300
62
BK4512
45
45
52
12
12900
22500
5800
45
BK4516
45
45
52
16
19300
38000
5800
56
BK4520
45
45
52
20
22000
51000
5800
72
BK5020
50
50
58
20
28000
60000
5300
87.3
BK5025
50
50
58
25
34500
80000
5300
109
BK5520
55
55
63
20
29500
59900
4600
93.8
BK5528
55
55
63
28
39090
98000
4600
132
BK6012
60
60
68
12
12400
29000
4100
77
BK6020
60
60
68
20
30500
72000
4100
105
BK6032
60
60
68
32
50000
131000
4100
164

BK Series

Primary Application Areas

Car Industry

You'll discover these orientation broadly utilized in programmed transmissions, manual gearboxes, and differential congregations. The compact plan suits cutting edge lightweighting necessities whereas taking care of the tall loads ordinary in powertrain applications.

Industrial Equipment

Machine device shafts, printing apparatus, and material gear advantage from the space-efficient plan. The coordinates fixing demonstrates especially profitable in situations with constrained support access.

Motorcycle Applications

Engine applications and transmission frameworks in cruisers utilize these orientation where weight and space limitations are basic plan factors.

Quality Control and Manufacturing Standards

Our fabricating handle actualizes comprehensive quality control measures all through generation. Crude fabric review confirms steel composition and hardness properties some time recently handling. In-process observing guarantees dimensional precision and surface wrap up quality amid container shaping and warm treatment operations.

Final assessment incorporates vibration testing, dimensional confirmation, and stack testing on test bunches. Each generation run experiences confirmation of 12 center execution pointers. Our quality control framework keeps up an ex-factory capability rate surpassing 99.9%.

Custom Solutions and Engineering Support

We provide comprehensive customization services for non-standard applications. Our engineering team analyzes your specific operating conditions to recommend optimal bearing configurations. BK Series Drawn Cup Needle Roller Bearings can be modified for special dimensional requirements, alternative materials, or enhanced performance characteristics.

Standard delivery time for catalog items is 7 working days. Custom configurations typically require 15-20 days depending on specification complexity. Sample services are available for evaluation and testing purposes.

Professional Installation and Maintenance Guidelines

Proper installation requires careful attention to housing bore tolerances and interference fit specifications. The housing bore should maintain H7 tolerance for optimal performance. During installation, apply force only to the outer ring to prevent roller damage.

Regular maintenance involves periodic lubrication according to operating conditions. High-speed applications may require synthetic lubricants, while standard mineral oils suit most industrial applications. Monitor bearing temperatures during initial operation to verify proper installation and lubrication.

BK Series

Why Choose Our Bearing Solutions?

With 30 years of bearing industry experience, we deliver reliable BK Series Drawn Cup Needle Roller Bearings backed by comprehensive technical support. Our integrated manufacturing capabilities ensure consistent quality while providing flexible customization options for unique applications.

Our supply chain network maintains inventory of over 1,000 bearing types for rapid delivery. Regional warehousing centers enable 48-hour delivery for standard configurations. Technical support includes on-site installation guidance and full-lifecycle maintenance planning.

For technical specifications, custom solutions, or ordering information, contact our engineering team at auto@lyautobearing.com. We provide detailed application analysis to ensure optimal bearing selection for your specific requirements.

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