BTR10/19 Ultra-high-speed Series

Features of BTR10/19 Ultra-high-speed Series

The ultra-precision screw bearing BAR can provide a contact angle of 30° to meet high-speed requirements or higher rigidity, and it can also provide a contact angle of 40° for BTR. As a bearing group, they can withstand high axial loads from both sides.

Applications

Ball-guided nylon cage is adopted; it can work stably under 120ºС for a long time.

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Parameter Introduction Quality Standard

Parameter

High-speed Angular Contact Thrust Ball Bearings(Robust Series)
Bearing Numbers	Boundary Dimensions(mm)					Basic Load Ratings(kN)		Parmissible Axial Load(kN)	Effective Load Center(mm)a	Mass(kg)(approx.)	Limiting Speeds(²)(min)
Bearing Numbers	d	D	B	r.(min)	r.(min)	C(Dynamic)	C(Static)	Parmissible Axial Load(kN)	Effective Load Center(mm)a	Mass(kg)(approx.)	Grease	Oil
50BAR10S	50	80	28.5	1.0	0.6	14.7	27.7	18.4	25.7	0.272	11600	14700
50BAR10H	50	80	28.5	1.0	0.6	14.7	27.7	12.6	25.7	0.257	13100	16200
50BTR10S	50	80	28.5	1.0	0.6	17.4	31.5	21.5	34.	0.272	10000	13100
50BTR10H	50	80	28.5	1.0	0.6	17.4	31.5	15.5	34.	0.257	11600	14700
55BAR10S	55	90	33.0	1.1	0.6	18.2	35.0	23.4	28.9	0.412	10400	13200
55BAR10H	55	90	33.0	1.1	0.6	18.2	35.0	16.0	28.9	0.391	11800	14500
55BTR10S	55	90	33.0	1.1	0.6	21.6	40.0	26.4	38.3	0.412	9000	11800
55BTR10H	55	90	33.0	1.1	0.6	21.6	40.0	19.7	38.3	0.391	10400	13200
60BAR10S	60	95	33.0	1.1	0.6	18.9	38.0	25.5	30.4	0.420	9700	12300
60BAR10H	60	95	33.0	1.1	0.6	18.9	38.0	17.5	30.4	0.397	11000	13600
60BTR10S	60	95	33.0	1.1	0.6	22.4	43.5	25.8	40.4	0.420	8400	11000
60BTR10H	60	95	33.0	1.1	0.6	22.4	43.5	21.5	40.4	0.397	9700	12300
65BAR10S	65	100	33.0	1.1	0.6	19.5	41.5	27.7	31.8	0.447	9100	11600
65BAR10H	65	100	33.0	1.1	0.6	19.5	41.5	19.0	31.8	0.406	10400	12800
65BTR10S	65	100	33.0	1.1	0.6	23.1	47.0	27.3	42.5	0.447	7900	10400
65BTR10H	65	100	33.0	1.1	0.6	23.1	47.0	23.3	42.5	0.406	9100	11600
70BAR10S	70	110	36.0	1.1	0.6	26.9	55.0	37.5	34.7	0.601	8400	10600
70BAR10H	70	110	36.0	1.1	0.6	26.9	55.0	25.5	34.7	0.561	9500	11700
70BTR10S	70	110	36.0	1.1	0.6	32.0	63.0	35.0	46.3	0.601	7300	9500
70BTR10H	70	110	36.0	1.1	0.6	32.0	63.0	31.5	46.3	0.561	8400	10600
75BAR10S	75	115	36.0	1.1	0.6	28.3	58.0	39.0	36.1	0.634	7900	10000
75BAR10H	75	115	36.0	1.1	0.6	28.3	58.0	26.7	36.1	0.592	9000	11100
75BTR10S	75	115	36.0	1.1	0.6	32.5	65.5	36.5	48.4	0.634	6900	9000
75BTR10H	75	115	36.0	1.1	0.6	32.5	65.5	33.0	48.4	0.592	7900	10000
80BAR10S	80	125	40.5	1.1	0.6	32.0	68.5	46.5	39.4	0.875	7400	9300
80BAR10H	80	125	40.5	1.1	0.6	32.0	68.5	32.0	39.4	0.821	8300	10300
80BTR10S	80	125	40.5	1.1	0.6	38.0	78.0	43.0	52.7	0.875	6400	8300
80BTR10H	80	125	40.5	1.1	0.6	38.0	78.0	39.0	52.7	0.821	7400	9300
85BAR10S	85	130	40.5	1.1	0.6	32.5	71.5	48.5	41.1	0.971	7000	8900
85BAR10H	85	130	40.5	1.1	0.6	32.5	71.5	33.0	41.1	0.915	8000	9800
85BTR10S	85	130	40.5	1.1	0.6	38.5	81.5	50.5	55.2	0.971	6100	8000
85BTR10H	85	130	40.5	1.1	0.6	38.5	81.5	41.0	55.2	0.915	7000	8900
90BAR10S	90	140	45	1.5	1.0	42.5	92.5	62.5	44.4	1.198	6600	8300
90BAR10H	90	140	45	1.5	1.0	42.5	92.5	43.0	44.4	1.124	7400	9200
90BTR10S	90	140	45	1.5	1.0	50.0	105	58.0	59.5	1.198	5700	7400
90BTR10H	90	140	45	1.5	1.0	50.0	105	52.5	59.5	1.124	6600	8300
95BAR10S	95	145	45	1.5	1.0	43.0	96.5	65.0	45.5	1.320	6300	8000
95BAR10H	95	145	45	1.5	1.0	43.0	96.5	44.5	45.5	1.231	7100	8800
95BTR10S	95	145	45	1.5	1.0	51.0	110	69.0	61.0	1.320	5500	7100
95BTR10H	95	145	45	1.5	1.0	51.0	110	55.0	61.0	1.231	6300	8000
100BAR10S	100	150	45	1.5	1.0	43.5	100	68.0	47.3	1.399	6000	7600
100BAR10H	100	150	45	1.5	1.0	43.5	100	46.5	47.3	1.307	6800	8400
100BTR10S	100	150	45	1.5	1.0	51.5	114	66.5	63.7	1.399	5200	6800
100BTR10H	100	150	45	1.5	1.0	51.5	114	57.0	63.7	1.307	6000	7600
105BAR10S	105	160	49.5	2.0	1.0	49.5	115	78.0	50.6	1.740	5700	7200
105BAR10H	105	160	49.5	2.0	1.0	49.5	115	53.5	50.6	1.624	6500	8000
105BTR10S	105	160	49.5	2.0	1.0	58.5	131	84.0	68.0	1.741	5000	6500
105BTR10H	105	160	49.5	2.0	1.0	58.5	131	65.5	68.0	1.624	5700	7200
110BAR10S	110	170	54.0	2.0	1.0	55.5	131	89.0	53.9	2.11	5400	6800
110BAR10H	110	170	54.0	2.0	1.0	55.5	131	60.5	53.9	1.972	6100	7500
110BTR10S	110	170	54.0	2.0	1.0	66.0	148	82.5	72.2	2.11	4700	6100
110BTR10H	110	170	54.0	2.0	1.0	66.0	148	74.5	72.2	1.972	5400	6800
120BAR10S	120	180	54.0	2.0	1.0	57.0	141	96.0	56.8	2.262	5000	6400
120BAR10H	120	180	54.0	2.0	1.0	57.0	141	65.5	56.8	2.114	5700	7000
120BTR10S	120	180	54.0	2.0	1.0	68.0	160	88.5	76.4	2.262	4400	5700
120BTR10H	120	180	54.0	2.0	1.0	68.0	160	80.5	76.4	2.114	5000	6400
130BAR10S	130	200	63.0	2.0	1.0	72.5	172	117	63.4	3.362	4600	5800
130BAR10H	130	200	63.0	2.0	1.0	72.5	172	79.5	63.4	3.148	5200	6400
130BTR10S	130	200	63.0	2.0	1.0	86.0	195	106	85.0	3.362	4000	5200
130BTR10H	130	200	63.0	2.0	1.0	86.0	195	98.0	85.0	3.148	4600	5800
140BAR10S	140	210	63.0	2.0	1.0	78.5	200	135	66.0	3.558	4300	5500
140BTR10S	140	210	63.0	2.0	1.0	93.0	227	84.0	89.1	3.558	3800	4900
150BAR10S	150	225	67.5	2.1	1.1	92.5	234	160	71	4.354	4000	5100
150BTR10S	150	225	67.5	2.1	1.1	110	267	104	95.5	4.354	3500	4600
160BAR10S	160	240	72.0	2.1	1.1	98.5	250	175	75.7	5.64	3800	4800
160BTR10S	160	240	72.0	2.1	1.1	117	284	184	101.9	5.64	3300	4300
170BAR10S	170	260	81.0	2.1	1.1	115	295	207	82.3	7.90	3500	4500
170BTR10S	170	260	81.0	2.1	1.1	136	335	220	110.5	7.90	3100	4000
180BAR10S	180	280	90.0	2.1	1.1	151	385	262	88.8	10.2	3300	4200
180BTR10S	180	280	90.0	2.1	1.1	179	440	255	118.9	10.2	2900	3700
190BAR10S	190	290	90.0	2.1	1.1	151	390	273	91.8	10.7	3200	4000
190BTR10S	190	290	90.0	2.1	1.1	179	445	281	123.2	10.7	2800	3600
200BAR10S	200	310	99.0	2.1	1.1	169	444	300	98.3	13.8	3000	3800
200BTR10S	200	310	99.0	2.1	1.1	201	505	310	131.7	13.8	2600	3400

BTR10/19 Ultra-high-speed Series

Increased load-bearing capacity usually reduces speed. By using the screw bearing BAR, these two requirements can be unified.
Super-precision screw bearing BAR conforms to precision and other P4S, and the installation kit is usually prepared in the form of configuration DB. The screw bearing BAR, ready to be installed in the shaft arrangement. All series can also provide a variety of combinations.
The ultra-precision screw bearing BAR can provide a contact angle of 30° to meet high-speed requirements or higher rigidity, and it can also provide a contact angle of 40° for BTR. As a bearing group, they can withstand high axial loads from both sides.

The bearing can correspond to high-precision, ultra-high-speed rotation with an inner diameter of less than 30mm, making it compact
A series of high-performance and high-function products. The wide-width seal ring has increased the grease life by 1.7 times compared with the open type bearing, realizing a long life. The use of heat and abrasion resistance is very good, to achieve high speed and long life. The standard adopts high-precision specifications.

Details

Structural point: Adopt small ball design, with high-speed performance, high rigidity and low heat generation.
Ring material: Imported IQ high-purity bearing steel, combined with special heat treatment process, cold treatment process and material modification technology, greatly improve the fatigue life of this series of bearings.
Contact angle: 30°(BAR10 series) and 40°(BTR10 series), bearing width dimension is special; bearing outer diameter deviation is specially treated, so that there is a gap between the outer diameter of the bearing outer ring and the inner diameter of the housing, that is, no radial load , Can only bear axial load; the assembly method is back-to-back installation.
Cage: Ball-guided nylon cage; it can work stably under 120ºС for a long time.
Rolling elements: steel balls (BAR10S; BTR10S) and ceramic balls (BAR10H; BTR10H).

Quality Standard

Rockewell Bearings has added parameters that are not defined by ISO/ABEC for customers, including preload tolerances, functional tests, traceability and micron codes, cleanliness, raceway curvature, balls, etc. and roundness, surface processing (function And non-functional surfaces), steel specifications, cage trim and design, and installation chamfering. The definition of these parameters improves the quality of precision angular contact ball bearing products, thereby improving the performance of machine tool spindles.
The element of precision angular contact ball bearings is the cage, which is very important for machine tool bearings. The performance of the cage will affect the stability of machine tool bearings under high-speed rotation. The standard cage produced by Rockewell is made of phenolic resin. The internal design and the tolerance of the pocket gap are tight and the guide surface is controlled to ensure the stability of the cage during high-speed operation, lubrication and dynamic load.
The two elements of precision angular contact ball bearings are cleanliness, which is very important for precision angular contact ball bearings. Generally, the parts of the bearing products must be cleaned with a multi-solvent for 3 hours to prevent impurities from entering the bearing and prevent inherent pollution sources. In addition, the non-working surface of the bearing must be ground to ensure that the bearing is free of impurities before leaving the factory. Therefore, the bearing products produced by Rockewell can increase the normal operating time of the machine tool.
There are two main structural design methods for precision angular contact ball bearings: the high-rigidity WI series and the high-speed HX series to meet the requirements of different applications. The basic, open Rockewell bearing design has a higher spindle speed and greater dynamic radial stiffness, so the spindle can cut more material in a shorter time while ensuring excellent finished product tolerances. These improvements are attributed to the combination of the ball body and the precision engineering design of the raceway profile, which improves the processing rate.

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